Search Subject Areas | Preprints.org

Preprint ARTICLE | doi:10.20944/preprints202305.2271.v1

In situ Entrapment of Catalase within Macroporous Cryogel Matrix for Ethanol Oxidation: Flow-through Mode versus Batch Reactor

Dina N. Akbayeva, Indira A. Smagulova, Kuralay S. Maksotova, Nurly A. Tasbolatova, Botagoz S. Bakirova, Gulnur S. Tatykhanova, Alexey V. Shakhvorostov, Sarkyt E. Kudaibergenov

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: macroporous cryogel; catalase; entrapment; oxidation of ethanol; hydrogen peroxide; molecular oxygen, air; flow-through reactor; batch type reactor

Online: 31 May 2023 (14:47:38 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202305.2206.v1

Low-Temperature Treatment of Boehmitic Bauxite Using the Bayer Reductive Method With the Formation of High-Iron Mag-Netite Concentrate

Andrei Shoppert, Dmitry Valeev, Irina Loginova, Denis Pankratov

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: boehmite; atmospheric leaching; alkali; hematite reduction; red mud valorization; Mössbauer spectroscopy

Online: 31 May 2023 (08:44:12 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202305.1420.v1

An Efficient and Mild Method for the Alkylation of p-Cresol with tert-Butyl Alcohol

Qi Wu, Dejin Zhang, Shu Sun, Chengcheng Liu, Cong Wang

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: Alkylation reaction; deep eutectic solvent; mild; response surface methodology

Online: 19 May 2023 (09:52:53 CEST)

Show abstract| Download PDF| Share

Preprint COMMUNICATION | doi:10.20944/preprints202305.1371.v1

Simple Preparation of a Unique Ionic Liquid/Deep Eutectic Solvent and β-Cyclodextrin Composite Discs and Its Use To Capture Hazardous Substances From Water

Yingying Guo, Na Liu, Hangping Chen, Ahmad Ali, Sara Toufouki, Shun Yao

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: ionic liquid; deep eutectic solvent; cyclodextrin; sorbent disc; water environment

Online: 19 May 2023 (04:04:11 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202304.0872.v1

The Synthesis of Glycerol Carbonate from Glycerol and Carbon Dioxide over Supported CuO-Based Nanoparticle Catalyst

Jassim Mohamed Hamed Al-Kurdhani, Huajun Wang

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: glycerol; glycerol carbonate; carbon dioxide; 2-cyanopyridine; CuO/Al2O3

Online: 25 April 2023 (03:40:08 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202304.0716.v1

Amine Decorated Methacrylic Acid based Inverse Vulcanized Polysulfide for Effective Mercury Removal from Wastewater

Ali Shaan Manzoor Ghumman, Muhammad Rashid Bin Shamsudin, Ammara Waheed, Rabia Sabir, Amin Abbasi, Abdul Sami

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: amine impregnation; inverse vulcanization; adsorption; mercury removal; sustainability; sulfur polymers

Online: 21 April 2023 (10:14:56 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202304.0455.v1

Increasing Energy Self-Consumption in Residential Photovoltaic Systems

Sebastian Pater

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: photovoltaics; air-source heat pumps; self-consumption; TRNSYS; hybrid installations

Online: 17 April 2023 (10:58:53 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202303.0529.v1

Synergetic Photocatalytic Peroxymonosulfate Oxidation of Benzotriazole by Cupper Ferrite Spinel: Factors and Mechanism Analysis

Masoumeh Golshan, Rasool Pelalak, Babak Kakavandi

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: Peroxymonosulfate activation; Copper ferrite; Photocatalyst; Benzotriazole

Online: 30 March 2023 (12:37:40 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint BRIEF REPORT | doi:10.20944/preprints202303.0267.v1

A Novel Process for Recovery and Exploitation of Polyesters and Polyamides from Waste Polymeric Artifacts

Massimo Barbieri, Edoardo Terreni, Flavio Tollini, Giuseppe Storti, Davide Moscatelli

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: Plastics recovery; plastics recycling; waste plastics; polyesters; polyamides; cleantech; green energy

Online: 15 March 2023 (02:39:29 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202303.0206.v1

A Polymorph of Dipeptide Halide Glycyl-L-Alanine Iodide Hy-Drate: Crystal Structure, Optical Second Harmonic Generation and Pyroelectricity

Rosa M. F. Baptista, Clara S. B. Gomes, Bruna Silva, João Oliveira, Bernardo Almeida, Cidália Castro, Pedro V. Rodrigues, Ana Machado, Ruben B. Freitas, Manuel R. L. F. Rodrigues, Etelvina De Matos Gomes, Michael Belsley

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: glycyl-L-alanine iodide; polymorphism; crystal structure; cyclic dipeptides; optical second harmonic generation; pyroelectricity

Online: 13 March 2023 (02:28:08 CET)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202303.0172.v1

Applying Linear Forms of Pseudo-Second-Order Kinetic Model for Feasibly Identifying Errors in the Initial Periods of Time-Dependent Adsorption Datasets

Hai Nguyen Tran

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: Adsorption kinetics; pseudo-second-order model; nonlinear method; linear method

Online: 9 March 2023 (09:34:58 CET)

Show abstract| Download PDF| Supplementary Files| Share

Initial periods of adsorption kinetics play an important role in estimating the initial adsorption rate and rate constant of adsorption process. Several adsorption processes rapidly occur, and the experimental data of adsorption kinetics under the initial periods can contain potential errors. The pseudo-second-order (PSO) kinetic model has been popularly applied in the field of adsorption. The use of the nonlinear optimization method to obtain the parameters of the PSO model can minimize error functions during modelling compared to the linear method. However, the nonlinear method has limitations in that it cannot directly recognize potential errors in the experimental points of time-dependent adsorption, especially under the initial periods. In this study, for the first time, the different linear types (Types 1–6) of the PSO model are applied to discover the error points under the initial periods. The result indicated that the fitting method using its linear equations (Types 2–5) is really helpful for identifying the error (doubtful) experimental points from the initial periods of adsorption kinetics. The imprecise points lead to low adjusted R2 (adj-R2), high reduced χ2 (red-χ2), and high Bayesian information criterion (BIC) values. After removing those points, the experimental data were adequately fitted with the PSO model. statistical analyses demonstrated that the nonlinear method must be used for modelling the PSO model because its red-χ2 and BIC were lower than the linear method. Type 1 has been extensively applied in the literature because of its very high adj-R2 (0.9999) and its excellent fitting to experimental points. However, its application should be limited because the potential errors from experimental points were not identified by this type. For comparison, the other kinetic models (i.e., pseudo-first-order, pseudo-nth-order, Avrami, and Elovich) are applied. The modelling result using the nonlinear forms of those models indicated that the fault experimental points from the initial periods were not detected.

Preprint REVIEW | doi:10.20944/preprints202302.0521.v1

Status and Prospects of High-Entropy Materials for Lithium–Sulfur Batteries

Yikun Yao, Jiajun Chen, Rong Niu, Zhenxin Zhao, Xiaomin Wang

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: Lithium-sulfur batteries; Catalysis; High-entropy materials; Active sites

Online: 28 February 2023 (13:44:20 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202302.0334.v1

Special-Oriented Annealing Twins Induced Orange Peel Morphology of Heat Pipe under Bending Deformation

Song-Wei Wang, Hong-Wu Song, Shi-Hong Zhang, Shuai-Feng Chen

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: surface roughening; heat pipe; annealing twin; texture

Online: 20 February 2023 (09:06:52 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202302.0292.v1

Is ChatGPT a Reliable Source for Writing Review Articles in Catalysis Research? A Case Study on CO2 Hydrogenation to Higher Alcohols

Qitong Zhong, Xing Tan, Ruixing Du, Jiacheng Liu, Longfei Liao, Cheng Wang, Ruiyan Sun, Zhenchen Tang, Jie Ren, Chalachew Mebrahtu, Feng Zeng

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: ChatGPT; heterogeneous catalysis; CO2 hydrogenation; reliability

Online: 17 February 2023 (03:11:31 CET)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202302.0186.v1

Membrane Cascade Type of «Continuous Membrane Column» for Power Plant Post-Combustion Carbon Dioxide Capture Part 1. Simulation of the Binary Gas Mixture Separation

Artem A. Atlaskin, Anton N. Petukhov, Anna N. Stepakova, Nikita S. Tsivkovsky, Sergey S. Kryuchkov, Kirill A. Smorodin, Irina S. Moiseenko, Maria E. Atlaskina, Sergey S. Suvorov, Ekaterina A. Stepanova, Ilya V. Vorotyntsev

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: flue gases; carbon dioxide; membrane; cascade; process design

Online: 10 February 2023 (07:50:32 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202301.0002.v1

Graphene-TLL-Cu₂ONPs Hybrid as Highly Efficient Catalyst for Degradation of Organic Pollutans

Noelia Losada-Garcia, Jannier Carranza, Jose M. Palomo

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: Graphene; copper oxide nanoparticles; nanohybrid; trichloroethylene; Rhodamine B; water remediation.

Online: 3 January 2023 (04:30:54 CET)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202212.0388.v1

Enhanced Precipitation of Gibbsite from Sodium Aluminate Solution by Adding Agglomerated Active Al(OH)₃ Seed

Andrei Shoppert, Dmitry Valeev, Konstantin Alekseev, Irina Loginova

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: alumina; Bayer process; bauxite; seeded precipitation; coarse gibbsite; agglomeration.

Online: 21 December 2022 (06:56:02 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202212.0371.v1

Concentration Analysis of Catalytic Conversion of Carbon Gas into Natural Gas (Hydrogen)

Jacqueline Furlan, Adriano Francisco Siqueira, Estaner Claro Romão

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: production of H2; numerical simulation; optimization

Online: 21 December 2022 (01:46:03 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202212.0181.v1

The Importance of Water for Purification of Longer Carbon Nanotubes for Nanocomposite Applications

Vladimir Z. Mordkovich, Maxim A. Khaskov, Veronika A. Naumova, Victor V. De, Aida R. Karaeva

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: nanocomposites; ultralong carbon nanotubes; catalytic chemical vapor deposition; purification; catalyst removal; water vapor treatment; thermal analysis; Raman spectroscopy

Online: 9 December 2022 (13:11:58 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202211.0105.v1

High-Iron Bauxite Residue (Red Mud) Valorisation Using Hydrochemical Conversion of Goethite to Magnetite

Andrei Shoppert, Dmitry Valeev, Mamodou Malal Diallo, Irina Loginova, Marie Constance Beavogui, Abdukhakim Rakhmonov, Yevgeniy Ovchenkov, Denis Pankratov

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: alkali leaching; red mud; high-iron waste; disposal; Al-goethite; conversion; magnetite

Online: 7 November 2022 (04:30:13 CET)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202209.0048.v1

Potential Utilization of Bacterial Consortium of Symbionts Marine Sponges in Removing Pollutants Global Trends: A Review

Ismail Marzuki, Rosmiati Rosmiati, Akhmad Mustafa, Sahabuddin Sahabuddin, Tarunamulia Tarunamulia, Endang Susianingsih, Erfan Andi Hendrajat, Andi Sahrijanna, Muslimin Muslimin, Erna Ratnawati, Kamariah Kamariah, Khairun Nisaa, Susila Herlambang, Sri Gunawan, Idum Satia Santi, Bambang Heri Isnawan, Ernawati Syahruddin Kaseng, Early Septiningsih, Ruzkiah Asaf, Admi Athirah, Basri Basri

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: removal; PAHs; heavy metals; marine sponges; bacterial consortium

Online: 5 September 2022 (07:43:34 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202207.0052.v1

Development and Testing of Modified Alumina Catalysts for Hydrotreating Petroleum Gasoline Fraction

Balga Tuktin, Aizhan A. Omarova, Larissa R. Sassykova, Galymzhan T. Saidilda, Sendilvelan Subramanian, Marat I. Tulepov, Arlan Z. Abilmagzhanov

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: alumina; catalysis; gasoline fraction of oil; hydrotreating; rare earth element; zeolite

Online: 4 July 2022 (10:39:29 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202207.0019.v1

Synthesis, Characterization of Magnetic Composites and Testing of Their Activity in Liquid-phase Oxidation of Phenol with Oxygen

Binara T. Dossumova, Tatyana V. Shakiyeva, Dinara Muktaly, Larissa R. Sassykova, Bedelzhan B. Baizhomartov, Sendilvelan Subramanian

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: catalysts; iron oxides; cobalt; oxygen; oxidation; phenol; magnetic composites

Online: 1 July 2022 (16:42:17 CEST)

Show abstract| Download PDF| Share

Preprint COMMUNICATION | doi:10.20944/preprints202207.0008.v1

Dehydro-Sulfurization Utilizing Doubly-Charged Negative Ions of Molybdenum Disulfide (MoS2), Graphene-Flake (GR-28), Armchair Carbon Nanotube (CNT 6,6), and Fullerene (C-60) as Catalysts for Depollution, Natural Resource Mining, and the Chemical Functiona

Kelvin L Suggs, Duminda K Samarakoon, Alfred Msezane

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: fullerene, graphene, molybdenum disulfide, carbon nanotubes, catalysts, density functional theory, enzymes, honeybee biomimicry, drones, depollution, doubly-charged negative ions

Online: 1 July 2022 (08:12:59 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202206.0362.v1

Research of the Thermal Effect on the Fe-Cr-Al Alloy Foil in the Initial State and with the Supported Secondary Carrier

Bolatbek Khussain, Alexandr Brodskiy, Alexandr Sass, Vladimir Yaskevich, Irina Shlygina, Kenzhegul Rakhmetova, Svetlana Tungatarova, Atabek Khussain

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: catalytic converters; waste gases; phosphating; oxidation

Online: 27 June 2022 (10:49:57 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202206.0109.v1

An Advanced Approach for MgZnAl-LDH Catalysts Synthesis Used in Claisen-Schmidt Condensation

Rodica Zăvoianu, Silvana-Denisa Mihăilă, Bogdan Cojocaru, Madalina Tudorache, Vasile I. Pârvulescu, Octavian Dumitru Pavel, Solon Oikonomopoulos, Elisabeth Egholm Jacobsen

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: Layered Double Hydroxides (LDH); mechano-chemical / co-precipitation synthesis; organic alkalis (tetramethylammonium hydroxides); memory effect; Claisen-Schmidt condensation; self-cyclohexanone condensation

Online: 8 June 2022 (03:23:29 CEST)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202203.0011.v2

Formulation in Surfactant Systems: From-Winsor-to-HLDN

Jean-Louis Salager, Ronald Marquez, Johnny Bullon, Ana Forgiarini

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: colloids; interface; formulation; surfactant; cosmetics; petroleum; food; paint; pharmaceutics; emulsions; foams; dispersions; HLDN

Online: 2 March 2022 (07:30:26 CET)

Show abstract| Download PDF| Share

Formulation is an ancient concept, although the word has been used only recently. The first formulations made our civilization advance by inventing bronze, steel, and gunpowder; then, it was used in medieval alchemy. When chemistry became a science and with the golden age of organic synthesis, the second formulation period began. This made it possible to create new chemical species and new combinations “à la carte.” However, the research and developments were still carried out by trial and error. Finally, the third period of formulation history began after World War II, when the properties of a system were associated with its ingredients and the way they were assembled or combined. Therefore, the formulation and the systems’ phenomenology were related to the generation of some synergy to obtain a commercial product. Winsor’s formulation studies in the 1950s were enlightening for academy and industries that were studying empirically surfactant-oil-water (SOW) systems. One of its key characteristics was how the interfacial interaction of the adsorbed surfactant with oil and water phases could be equal by varying the physicochemical formulation of the system. Then, Hansen’s solubility parameter in the 1960s helped to reach a further understanding of the affinity of some substances to make them suitable to oil and water phases. In the 1970s, researchers such as Shinoda and Kunieda, and different groups working in Enhanced Oil Recovery (EOR), among them Schechter and Wade’s group at the University of Texas, made formulation become a science by using semiquantitative correlations to attain specific characteristics in a system (e.g., low oil-water interfacial tension, formulation of a stable O/W or W/O emulsion, or high-performance solubilization in a bicontinuous microemulsion system at the so-called optimum formulation). Nowadays, over 40 years of studies with the hydrophilic-lipophilic deviation equation (HLD) have made it feasible for formulators to improve products in many different applications using surfactants to attain a target system using HLD in its original or its normalized form, i.e., HLDN. Thus, it can be said that there is still current progress being made towards an interdisciplinary applied science with numerical guidelines. In the present work, the state-of-the-art of formulation in multiphase systems containing two immiscible phases like oil and water, and therefore systems with heterogeneous or micro-heterogeneous interfaces, is discussed. Surfactants, from simple to complex or polymeric, are generally present in such systems to solve a wide variety of problems in many areas. Some significant cases are presented here as examples dealing with petroleum, foods, pharmaceutics, cosmetics, detergency, and other products occurring as dispersions, emulsions, or foams, that we find in our everyday lives.

Preprint REVIEW | doi:10.20944/preprints202203.0011.v1

Formulation in Surfactant Systems: From-Winsor-to-HLDN

Jean-Louis Salager, Ronald Marquez, Johnny Bullon, Ana Forgiarini

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: colloids; interface; formulation; surfactant; cosmetics; petroleum; food; paint; pharmaceutics; emulsions; foams; dispersions; HLDN

Online: 1 March 2022 (09:25:12 CET)

Show abstract| Download PDF| Share

Formulation is an ancient concept, although the word has been used only recently. The first formulations made our civilization advance by inventing bronze, steel, and gunpowder; then, it was used in medieval alchemy. When chemistry became a science and with the golden age of organic synthesis, the second formulation period began. This made it possible to create new chemical species and new combinations “à la carte.” However, the research and developments were still carried out by trial and error. Finally, the third period of formulation history began after World War II, when the properties of a system were associated with its ingredients and the way they were assembled or combined. Therefore, the formulation and the systems’ phenomenology were related to the generation of some synergy to obtain a commercial product. Winsor’s formulation studies in the 1950s were enlightening for academy and industries that were studying empirically surfactant-oil-water (SOW) systems. One of its key characteristics was how the interfacial interaction of the adsorbed surfactant with oil and water phases could be equal by varying the physicochemical formulation of the system. Then, Hansen’s solubility parameter in the 1960s helped to reach a further understanding of the affinity of some substances to make them suitable to oil and water phases. In the 1970s, researchers such as Shinoda and Kunieda, and different groups working in Enhanced Oil Recovery (EOR), among them Schechter and Wade’s group at the University of Texas, made formulation become a science by using semiquantitative correlations to attain specific characteristics in a system (e.g., low oil-water interfacial tension, formulation of a stable O/W or W/O emulsion, or high-performance solubilization in a bicontinuous microemulsion system at the so-called optimum formulation). Nowadays, over 40 years of studies with the hydrophilic-lipophilic deviation equation (HLD) have made it feasible for formulators to improve products in many different applications using surfactants to attain a target system using HLD in its original or its normalized form, i.e., HLDN. Thus, it can be said that there is still current progress being made towards an interdisciplinary applied science with numerical guidelines. In the present work, the state-of-the-art of formulation in multiphase systems containing two immiscible phases like oil and water, and therefore systems with heterogeneous or micro-heterogeneous interfaces, is discussed. Surfactants, from simple to complex or polymeric, are generally present in such systems to solve a wide variety of problems in many areas. Some significant cases are presented here as examples dealing with petroleum, foods, pharmaceutics, cosmetics, detergency, and other products occurring as dispersions, emulsions, or foams, that we find in our everyday lives.

Preprint ARTICLE | doi:10.20944/preprints202111.0573.v2

Evaluation of Kinetic Pseudo-Order in the Photocatalytic Degradation of Ofloxacin

Giora Rytwo, Arye Lev Zelkind

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: ofloxacin; rate-law; pseudo-order; half-life time; homogeneous catalysis; heterogeneous catalysis; photodegradation

Online: 15 December 2021 (08:24:46 CET)

Show abstract| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202111.0573.v1

Evaluation of Kinetic Pseudo-Order in the Photocatalytic Degradation of Ofloxacin

Giora Rytwo, Arye Lev Zelkind

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: ofloxacin; rate law; pseudo-order; half-life time; homogeneous catalysis; heterogeneous catalysis; photodegradation

Online: 30 November 2021 (14:37:14 CET)

Show abstract| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202111.0571.v1

Multicomponent Materials to Improve Solubility: Eutectics of Drug Aminoglutethimide

Basanta Saikia, Andreas Seidel-Morgenstern, Heike Lorenz

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: Aminoglutethimide; Multicomponent solid form; Eutectic Mixure; Solubility

Online: 30 November 2021 (13:22:31 CET)

Show abstract| Share

Preprint ARTICLE | doi:10.20944/preprints202111.0481.v1

The Mechanics of Forming Ideal Polymer Solvent Combinations for Open-Loop Chemical Recycling of Plastics and Solvents

Ioannis Tsampanakis, Alvin Orbaek White

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: plastic waste; chemical recycling; mathematical modelling; carbon feedstock; circular economy; open-loop recycling; acrylonitrile butadiene styrene; polystyrene; toluene

Online: 25 November 2021 (15:26:23 CET)

Show abstract| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202111.0413.v1

Selective Scandium (Sc) Extraction from Bauxite Residue (Red Mud) Obtained by Alkali Fusion-Leaching Method

Andrei Shoppert, Irina Loginova, Julia Napol’skikh, Aleksey Kyrchikov, Leonid Chaikin, Denis Rogozhnikov, Dmitry Valeev

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: bauxite residue; red mud; scandium; acid leaching; kinetics; shrinking core model; waste utilization.

Online: 23 November 2021 (09:07:23 CET)

Show abstract| Share

Preprint ARTICLE | doi:10.20944/preprints202111.0238.v1

Analysis of Biogas Component Production during Anaerobic Digestion of Sour Cabbage in Microaeration Conditions under Different pH Conditions

Gaweł Sołowski

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: volatile suspended solids; anaerobic digestion; hydrogen; sour cabbage; microaeration

Online: 12 November 2021 (17:04:00 CET)

Show abstract| Share

Preprint ARTICLE | doi:10.20944/preprints202111.0220.v1

β-Ga₂O₃ Used as a Saturable Absorber to Realize Passively Q-Switched Laser Output

Baizhong Li, Qiudi Chen, Peixiong Zhang, Ruifeng Tian, Lu Zhang, Qinglin Sai, Bin Wang, Mingyan Pan, Youchen Liu, Changtai Xia, Zhenqiang Chen, Hongji Qi

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: β-Ga2O3 crystal; optical floating zone; saturable absorber; Q-switch

Online: 12 November 2021 (12:09:07 CET)

Show abstract| Share

Preprint ARTICLE | doi:10.20944/preprints202110.0157.v1

Cane Papyrus as Sustainable and Natural Bio-sorbent for Polluted Oilfield Water Treatment by Adsorption

Mohammed Jaafar Ali Alatabe

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: Adsorption; Cane Papyrus; Oily water; Produced water; Isotherm; Kinetic

Online: 11 October 2021 (11:53:37 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202109.0398.v1

Changes in Risk in Medium Business Plants Following Revision of the Korean Chemical Accident Prevention System, Focusing on Plating and Paint Manufacturing Industries

Hyo Eun Lee, Min-Gyu Kim, Seok J. Yoon, Da-An Huh, Kyong Whan Moon

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: Preparation of Off-Site Consequence Analyses; Chemicals Control Act; Risk Assessment; Paint Manufacturing Plant; Plating Industry Plant

Online: 23 September 2021 (10:18:56 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202106.0325.v1

Synthesis of Carbon Nanotubes (CNTs) from Poultry Litter for Removal of Chromium Cr (VI) from Wastewater

Noor Haleem, Yousuf Jamal, Shahid Nawaz Khan, Muhammad Anwar Baig

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: Poultry litter; Carbon nanotubes; Catalyst; Experimental conditions; Adsorption

Online: 11 June 2021 (14:59:33 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202106.0213.v1

Novel Approach of Heat Rate Enhancement in a Rectangular Channels with Thin Porous Layer at the Channel Walls

M. Z. Saghir

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: Rectangular channels; Twisted tape inserts; Laminar flow; Forced convection; Water; Heat enhancement; Pressure drop; Performance evaluation criteria

Online: 8 June 2021 (11:09:04 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202101.0635.v1

Ex-situ and In-situ Microstructure Investigations of AM Part and Powders

M. Albu, S. Mitsche, M. Nachtnebel, R. Krisper, M. Dienstleder, H. Kothleitner, G. Kothleitner

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: Powder; AlSiMg; Ti64; N700; microstructure; high-resolution electron microscopy

Online: 29 January 2021 (17:21:56 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202101.0422.v1

On the Role of Grain Boundaries During Sintering

Torsten Staab, Ricardo Helm, Andreas Diegeler

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: Grain Boundaries

Online: 21 January 2021 (14:19:33 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202012.0231.v1

Enhancing Photocatalytic Activity of ZnO Nanoparticles in a Circulating Fluidized Bed with Plasma Jets

Shiwei Ma, Yunyun Huang, Ruoyu Hong, Xuesong Lu, Jianhua Li

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: Plasma, zinc oxide, photocatalysis, nanomaterials.

Online: 9 December 2020 (15:51:59 CET)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202010.0378.v1

Deep Eutectic Solvents Feasibility in Oil and Gas Processing Field for Contaminated CO2 Control

Ihtisham Ul Haq, Bhajan Lal, Dzulkarnain Zaini

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: Carbon dioxide capture; Deep eutectic solvents; Ionic liquids.

Online: 19 October 2020 (11:59:37 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202010.0104.v1

Surface-Plasmon-Induced Visible Light Photocatalytic Activity of Fe₃O₄/TiO₂ Nanocomposite

Narjes Esmaeili, Azadeh Ebrahimian Pirbazari, Ziba Khodaee

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: Fe3O4; Ag; TiO2 nanoparticles; Degradation; 2, 4-dichlorophenol

Online: 5 October 2020 (17:51:13 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202010.0103.v1

A Comparison Study of Photocatalytic Activity of Fe₃O₄/TiO₂ and Ag/TiO₂ on the Degradation of 2, 4-Dichlorophenol

Narjes Esmaeili, Azadeh Ebrahimian Pirbazari, Ziba Khodaee

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: Ag nanoparticles; Plasmonic photocatalysts; Fe3O4; Oxidation; 2, 4-DCP

Online: 5 October 2020 (17:49:27 CEST)

Show abstract| Download PDF| Share

Preprint COMMUNICATION | doi:10.20944/preprints202008.0701.v1

Effect of Cu and Cs in the b-Mo2C System for CO2 Hydrogenation to Methanol

Ana Belén Dongil, Qi zhang, Laura Pastor-Pérez, Tomás Ramírez-Reina, Antonio Guerrero-Ruiz, Inmaculada Rodríguez-Ramos

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: carbon dioxide; molybdenum carbide; methanol; copper; alkali; dopant

Online: 31 August 2020 (05:03:06 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202008.0427.v1

Reduction Behavior of Chromium (VI) with Oxalic Acid in Aqueous Solution

Hao Peng, Jing Guo, Binfang Yuan, Liping Lv, Huisheng Huang, Bing Li

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: chromium; reduction; oxalic acid

Online: 20 August 2020 (05:40:51 CEST)

Show abstract| Download PDF| Share

Preprint BRIEF REPORT | doi:10.20944/preprints202005.0355.v1

Plastic Treatment and Microplastic Production, and Their Presence in Feed and Food

Juan A. Conesa

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: microplastics; analysis; waste treatment; food; diet

Online: 23 May 2020 (04:58:22 CEST)

Show abstract| Download PDF| Share

Working Paper ARTICLE

Removal of Lead Ions from Aqueous Solutions by a Novel Ficus carica L.-Zeolite-Alginate Biocomposite

Kadriye Esen Erden, Ibrahim Doruk, Meruyert Kaygusuz, Cem Gök

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: adsorption; lead; biocomposite; alginate; Ficus carica L.

Online: 7 May 2020 (08:03:17 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202002.0266.v1

Absorptive Desulfurization of Model Biogas Stream Using Choline Chloride-Based Deep Eutectic Solvents

Edyta Słupek, Patrycja Makoś

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: deep eutectic solvents; absorption; biogas; dimethyl disulfide; green solvents; desulfurization

Online: 18 February 2020 (11:10:40 CET)

Show abstract| Share

Preprint ARTICLE | doi:10.20944/preprints202002.0129.v1

Synthesis And Investigation of p-Ni-Doped rGO/n-TiO₂ Heterojunction Nanocomposite as an Efficient Catalyst for Photon-Induced Water Splitting

Mohamed Atrees, Ebrahiem Ismail, Mohammad S. Mahmoud, Hamed Mira, Mohamed Semari, Mohamed Eid Ali, Yasser khawassek

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: Graphene; Nanocomposite; photocatalyst; water splitting; hydrogen

Online: 10 February 2020 (15:20:21 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202001.0348.v1

Correlation between Functional Group and Formation of Nanoparticles in PEBAX/Ag Salt/Al Salt Complexes for Olefin Separation

So Young Kim, Younghyun Cho, Sang Wook Kang

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: PEBAX; Ag; olefin; membrane; nanoparticle

Online: 29 January 2020 (04:35:25 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202001.0046.v1

Diethyl Carbonate Synthesis from CO₂, Ethanol and Propylene Oxide in the presence of Dehydrating Agent of Ethylene over the novel catalysts of Supported Ni-Cu@Na₃PW₁₂O₄₀ and Mixed Ni-Cu@Na₃PW₁₂O₄₀

Meng Zhang

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: CO2; diethyl carbonate; ethanol; dehydrating agent; catalyst

Online: 5 January 2020 (16:58:11 CET)

Show abstract| Download PDF| Share

Working Paper ARTICLE

Research on ASP Flooding to Improve Oil Recovery in Low Permeability Reservoirs Based on Laboratory Experiments of a Partial Quality Tool

Bin Huang, Xinyu Hu, Cheng Fu, Quan Zhou

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: ASP flooding; low permeability oil layer; partial quality tool; maximum injection pressure; oil recovery

Online: 13 November 2019 (03:38:54 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201911.0049.v1

Revealing the Influence of the Degumming Process in the Properties of Silk Fibroin Nanoparticles

Guzmán Carissimi, A. Abel Lozano-Pérez, Mercedes G. Montalbán, Salvador D. Aznar-Cervantes, José Luis Cenis, Gloria Víllora

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: silk fibroin nanoparticles; cocoon degumming; bombyx mori; ionic liquids ultrasound; autoclave

Online: 6 November 2019 (09:30:22 CET)

Show abstract| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints201911.0027.v1

Gas permeation Property of Silicon Carbide Membrane Synthesized by Counter Diffusion Chemical Vapor Deposition

Takayuki Nagano, Koji Sato, Koichi Kawahara

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: hydrogen; amorphous; silicon carbide; alumina; chemical vapor deposition

Online: 3 November 2019 (18:14:26 CET)

Show abstract| Share

Preprint ARTICLE | doi:10.20944/preprints201911.0009.v1

Hydrogenation Production from Ammonia Borane over PtNi Alloy Nanoparticles Immobilized on Graphite Carbon Nitride

Mingya Zhang, Xue Xiao, Yan Wu, Yue An, Lixin Xu, Chao Wan

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: ammonia borane; ptni/g-c3n4; hydrogen storage; dehydrogenation

Online: 1 November 2019 (11:27:00 CET)

Show abstract| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints201909.0250.v1

Improvement of Methane Combustion Activity for Pd/ZrO2 Catalyst by Simple Reduction/Re-oxidation Treatment

Chansong Kim, Eunpyo Hong, Chae-Ho Shin

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: ch4 temperature-programmed reduction; methane combustion; pd/zro2 catalyst; reduction; calcination

Online: 21 September 2019 (09:36:45 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Working Paper ARTICLE

Removal of Various Pollutants from Wastewaters Using an Efficient and Degradable Hypercrosslinked Polymer

Zujin Yang, Yuxin Chai, Qiuru Li, Hongbing Ji

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: hypercrosslinked polymer; p-hydroxy-phthalic acid; pollutants; adsorption; biodegradation

Online: 17 September 2019 (11:36:51 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201908.0086.v1

Preparation and Studying the Optimum Performance for Both CuO and CeO₂ as A Metal Oxide Nanoparticles Catalyst for Synthesis of Glycerol Carbonate from Reaction of Glycerol with Carbon Dioxide Gas

Jassim Mohamed Hamed AL-Kurdhani, Huajun Wang, Taha Seham Ismail

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: carbonylation of glycerol; glycerol carbonate; CO2; nanoparticle catalyst; CuO; CeO2

Online: 7 August 2019 (03:43:55 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201907.0249.v1

The Impacts of Shell Thickness of Thermally Expandable Microspheres on the Application of Vehicle Underbody Coating

Jin-Wook Park, Sang-Jin Lee, Sang-Hoon Ji, Hae-Na You, Ji-Hoo Kim, Kwang-Ji Ryu

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: vehicle; shell thickness, coating; focused ion beam; containing cross-linking agents

Online: 23 July 2019 (07:36:14 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201907.0232.v1

Oxidative Leaching of Vanadium from Vanadium-Chromium Reducing Residue with MnO₂

Hao Peng, Liu Yang, Ya Chen, Jing Guo

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: leaching; vanadium; MnO2

Online: 22 July 2019 (07:46:54 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201907.0160.v1

Thermoplastic Elastomer based Phase Change Materials with Enhanced Mechanical Property, Thermal Conductivity and Photo-thermal Performance

Fuxian Wang, Xuelin Zou, Yanfeng Chen, Jian Liu

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: solar thermal systems; phase change materials; thermoplastic elastomer; mechanical property; photo-thermal performance

Online: 11 July 2019 (11:54:58 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201907.0087.v1

3D Lattice Boltzmann Simulation of Droplet Evaporation on Patterned Surfaces: Study of Pinning-Depinning Mechanism

Boheng Dong, Fuxian Wang, Xinya Zhang, Xiang Jiang

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: pinning-depinning; evaporation; chemically stripe-patterned surfaces; lattice Boltzmann

Online: 5 July 2019 (04:40:38 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201906.0284.v1

Effects of Shell Thickness of Thermally Expandable Microspheres on the Application of Underbody Coating for Vehicles

Jin-Wook Park, Sang-Jin Lee, Sang-Hoon Ji, Hae-Na You, Ji-Hoo Kim, Kwang-Ji Ryu

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: TEM; underbody coating; UBC; FIB; thermally expandable microspheres

Online: 27 June 2019 (07:52:13 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201906.0055.v1

Applying ANN, ANFIS, and LSSVM Models for Estimation of Acid Solvent Solubility in Supercritical CO2

Amin Bemani, Alireza Baghban, Shahab Shamshirband

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: Supercritical carbon dioxide, Modeling, Acid, Artificial intelligence, Solubility

Online: 7 June 2019 (12:18:48 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201903.0068.v2

Non-Dispersive Extraction of Ge(IV) from Aqueous Solutions by Cyanex 923: Transport and Modeling Studies

Hossein Kamran Haghighi, Mehdi Irannajad, Maria Teresa Coll, Ana Maria Sastre

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: germanium; supported liquid membrane; transport; Cyanex 923; modeling

Online: 29 May 2019 (04:54:50 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201905.0298.v1

Effect of Silver Decoration and Light Irradiation on the Antibacterial Activity of TiO₂ and ZnO Nanoparticles

Van Thang Nguyen, Tien Viet Vu, The Huu Nguyen, Tuan Anh Nguyen, Thien Vuong Nguyen, Phuong Nguyen-Tri

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: silver nanoparticles; nano-TiO2; nano- ZnO; nanohybrids; antibacterial

Online: 24 May 2019 (12:44:36 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201905.0045.v1

Electrochemical Performance Improvement of the Catalyst of the Methanol Micro-Fuel Cell Using Carbon Nanotubes

Habib Forootan Fard, Mohammad Kazemi nasrabadi, Amir Ebrahimi-Moghadam, Mohammad Hossein Ahmadi, Ely Salwana, Ravinder Kumar, Shahab Shamshirband

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: fuel cell; carbon nanotube; catalyst; platinum-ruthenium

Online: 6 May 2019 (10:05:30 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201904.0177.v1

Enhanced Protection of Biological Membranes during Lipid Peroxidation. Study of the Interactions between Flavonoid Loaded Mesoporous Silica Nanoparticles and Model Cell Membranes

Anja Sadžak, Lucija Mandić, Vida Strasser, Goran Baranović, Darija Domazet Jurašin, Maja Dutour Sikirić, Suzana Šegota

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: lipid peroxidation; membrane elasticity; mesoporous silica nanoparticles; myricetin; myricitrin; nanomechanics; protective effects of flavonoids; quercetin

Online: 16 April 2019 (09:54:03 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints201904.0020.v1

Hydrotreating of Jatropha-derived Bio-oil over Mesoporous Sulfide Catalysts to Produce Drop-in Transportation Fuels

Shih-Yuan Chen, Takehisa Mochizuki, Masayasu Nishi, Hideyuki Takagi, Yuji Yoshimura, Makoto Toba

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: Hydrotreating, mesoporous sulfide materials, waste Jatropha biomass, drop-in biofuels, upgrading technology

Online: 1 April 2019 (13:51:53 CEST)

Show abstract| Download PDF| Share

The bio-oil was largely produced by thermal pyrolysis of Jatropha-derived biomass wastes (denoted as Jatropha bio-oil) using a Pilot Plant with a capacity of 20 kg h-1 at Thailand Institute of Scientific and Technological Research (TISTR), Thailand. Jatropha bio-oil is an unconventional type of bio-oil, which is mostly composed of fatty acids, fatty acid methyl esters, fatty acid amides and derivatives, and consequently it contained large amounts of heteroatoms (oxygen ~ 20 wt.%, nitrogen ~ 5 wt.%, sulfur ~ 1000 ppm.). The heteroatoms, nitrogen especially, are highly poisonous to the metal or sulfide catalysts for upgrading of Jatropha bio-oil. To overcome this technical problem, we reported a stepwise strategy for hydrotreating of 100 wt% Jatropha bio-oil over mesoporous sulfide catalysts of CoMo/γ-Al2O3 and NiMo/γ-Al2O3 to produce drop-in transport fuels, such as gasoline- and diesel-like fuels. This study is very different from our recent work on co-processing of Jatropha bio-oil (ca. 10 wt%) with petroleum distillates to produce a hydrotreated oil as a diesel-like fuel (Chen et al., Catalysts 2018, 8, 59; http://dx.doi.org/10.3390/catal8020059). Jatropha bio-oil was pre-treated through a slurry-type high pressure reactor under severe condition, resulting in a pre-treated Jatropha bio-oil with relatively low amounts of heteroatoms (oxygen < 20 wt.%, nitrogen < 2 wt.%, sulfur < 500 ppm.). The light and middle distillates of pre-hydrotreated Jatropha bio oil was then separated by distillation at temperature below 240 oC, and the temperature of 240-360 oC. Deep hydrotreating of light distillates over sulfide CoMo/γ-Al2O3 catalyst was performed on a batch-type high pressure reactor at 350 oC and 7 MPa of H2 gas for 5 h. The hydrotreated oil was a gasoline-like fuel, which contained 29.5 vol.% of n-paraffins, 14.4 vol.% of iso-paraffins, 4.5 vol.% of olefins, 21.4 vol. % of naphthene compounds and 29.6 wt.% of aromatic compounds, and little amounts of heteroatoms (nearly no oxygen and sulfur, and less than 50 ppm of nitrogen), corresponding to an octane number of 44, and it would be suitable for blending with petro-gasoline. The hydrotreating of middle distillates over sulfide NiMo/γ-Al2O3 catalyst using the same reaction condition produced a hydrotreating oil with diesel-like composition, low amounts of heteroatoms (no oxygen and less than 50 ppm of sulfur and nitrogen), and a cetane number of 60, which would be suitable for use in drop-in diesel fuel.

Working Paper ARTICLE

Biological Activity and Nanostructuration of Fe3O4-Ag/Polyethylene Nanocomposites

Phuong Nguyen-Tri

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: polyethylene; nanocomposites; silver nanoparticles; Fe3O4-Ag hybrid nanoparticles; antibacterial activity

Online: 19 March 2019 (07:54:54 CET)

Show abstract| Download PDF| Share

Working Paper ARTICLE

Biological Activity and Nanostructuration of Fe₃O₄-Ag/Polypropylene Nanocomposites

Nguyen-Tri Phuong

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: polyethylene; nanocomposites; silver nanoparticles; Fe3O4-Ag hybrid nanoparticles; antibacterial activity

Online: 18 March 2019 (10:43:38 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201903.0159.v1

Optimizing Conditions for Scandium Extraction from Bauxite Residue Using Taguchi Methodology

Theopisti Lymperopoulou, Paraskevas Georgiou, Lamprini-Areti Tsakanika, Konstantinos Hatzilyberis, Maria Ochsenkuehn-Petropoulou

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: Taguchi method; experimental design; optimization; scandium; extraction; sulfuric acid

Online: 15 March 2019 (09:34:01 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201903.0134.v1

Effect of Varying the Ratio of Carbon Black to Vapor-Grown-Carbon-Fibers in the Separator on the Performance of Li–S Batteries

Hearin Jo, Jeonghun Oh, Yong Min Lee, Myung-Hyun Ryou

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: Carbon-coated separator; polysulfide; shuttle effect; lithium-sulfur batteries

Online: 12 March 2019 (10:02:03 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.3390/sci1010013.v1

Synthesis, Structural Characterization, and Biological Activities of Organically Templated Cobalt Phosphite (C4N2H14)Co(H2PO3)4·2H2O

Najlaa Hamdi, Souad Chaouch, Ivan da Silva, Mohamed Ezahri, Mohammed Lachkar, Rama Alhasan, Ahmad Yaman Abdin, Claus Jacob, Brahim El Bali

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: hybrid phosphite; crystal structure; thermal behavior; biological activities; antimicrobial; micro-organisms

Online: 12 March 2019 (00:00:00 CET)

Show abstract| Share

Preprint ARTICLE | doi:10.20944/preprints201902.0017.v1

Biodiesel Production (FAEEs) by Heterogeneous Combi-Lipase Biocatalysis Using Wet Extracted Lipids from Microalgae

Alejandra Sánchez-Bayo, Victoria Morales, Rosalía Rodríguez, Gemma Vicente, Luis Fernando Bautista

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: FAEEs; biodiesel; mixed biocatalysts; lipases; microalgae

Online: 2 February 2019 (03:23:32 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201901.0054.v1

Efficient Conversion of Glucose into 5-Hydroxymethylfurfural via a Simple Catalyst γ-AlOOH at a Mild Reaction Condition

Zhe Tang, Ruiyu Jiang, Hui Cang, Jianhui Su

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: heterogeneous catalysis; carbohydrates; HMF; Boehmite

Online: 8 January 2019 (08:36:49 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201811.0586.v1

Assessment of the Indoor Air Quality of Akure, Nigeria

Francis Abulude, Fagbayide Samuel Dare, Akinyinka Akinnusotu, Olatunde Elubode Makinde, Jamok Jacob Elisha

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: Indoor, classrooms, residential rooms, air detector, PM, TVOC, EPA

Online: 26 November 2018 (11:24:49 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201811.0477.v1

Boron Removal Using Li-Al-OH Layered Double Hydroxide Prepared by One-Step Mechanochemical Approach

Jingjing Tian, Jun Qu, Lei Wan, Qiwu Zhang, Huimin Gao

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: Li-Al-OH LDH; mechanochemical preparation; boron adsorption; physical and chemical synergism; competitive adsorbent

Online: 20 November 2018 (04:02:33 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201811.0396.v1

Modeling the Strategies for Improved Efficacy and Crosslink Depth of Photo-Initiated Polymerization and Phototherapy

Jui-Teng Lin, Hsia-Wei Liu, Kuo-Ti Chen, Da-Chuan Cheng

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: polymerization modeling; kinetic; photoinitiator; optimal efficacy; crosslinking.

Online: 16 November 2018 (10:26:26 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201811.0331.v1

Acidic Gases Separation from Gas Mixtures on the SILMs Providing the Facilitated and Solution-Diffusion Transport Mechanisms

Alsu I. Akhmetshina, Alla Mochalova, Maxim M. Trubyanov, Artem A. Atlaskin, Nail R. Yanbikov, Amal Mechergui, Kseniya V. Otvagina, Evgeny N. Razov, Ilya V. Vorotyntsev

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: gas mixtures; supported ionic liquid membrane; hydrogen sulfide; carbon dioxide; natural gas treating

Online: 14 November 2018 (10:06:01 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201811.0140.v1

Adsorption of 2-(Hexadecanoylamino)Acetic Acid Onto the Surface of Smithsonite: Mechanism and Flotation Performance

Bin Luo, Junbo Liu, Quanjun Liu, Chao Song , Li Yu , Shimei Li , Hao Lai

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: Smithsonite; Flotation; 2-(Hexadecanoylamino)acetic acid; Collector; Adsorption

Online: 6 November 2018 (11:59:07 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201810.0644.v1

Catalytic Hydrotreatment of Microalgae Biocrude from Continuous Hydrothermal Liquefaction: Heteroatom Removal and their Distribution in Distillation Cuts

Muhammad Salman Haider, Daniele Castello, Karol Michal Michalski, Thomas Helmer Pedersen, Lasse Rosendahl

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: Hydrothermal liquefaction (HTL), Spirulina, Hydroprocessing, Hydrotreating, Upgrading, Hydrodeoxygenation (HDO), Hydrodenitrogenation (HDN), Fractional distillation, Drop-in biofuels, Nitrogen distribution

Online: 27 October 2018 (21:20:47 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201810.0064.v1

Recycling the Gan Waste from LED Industry by Pressurized Leaching Method

Wei-Sheng Chen, Li-Lin Hsu, Li-Pang Wang

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: gallium nitride; gallium; LED waste; LED recycling; leaching

Online: 3 October 2018 (17:16:07 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201809.0575.v1

Enzymatically Active Polydopamine @ Alkaline Phosphatase Nanoparticles Produced by NaIO₄ Oxidation of Dopamine

Salima El Yakhlifi, Dris Ihiawakrim, Ovidiu Ersen, Vincent Ball

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: melanin like nanoparticles; sodium periodate; enzymatic activity; layer-by-layer films

Online: 29 September 2018 (04:16:12 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201809.0530.v1

Removal of Lead Ions from Aqueous Solutions by a Novel Ficus carica L.-Zeolite-Alginate Biocomposite

Meruyert Kaygusuz, Cem Gök

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: adsorption; lead; biocomposite; alginate; Ficus carica L.

Online: 27 September 2018 (04:39:26 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201809.0471.v1

Development of Algae Guard Façade Paint with Statistical Modeling under Natural Phenomena

Sheraz Ahmed Qureshi, Amir Shafeeq, Aamir Ijaz, Muhammad Moeen Butt

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: algaecides; dirt; humidity; resilience; temperature; time

Online: 25 September 2018 (03:45:11 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201809.0242.v1

Morphological Estimation of DMPC/DHPC Self-Assemblies in Diluted Condition: Based on Physicochemical Membrane Properties

Shogo Taguchi, Keishi Suga, Keita Hayashi, Yukihiro Okamoto, Hidemi Nakamura, Hiroshi Umakoshi

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: Phospholipid assembly; Bicelle; Membrane fluidity; Membrane polarity; Phase behavior

Online: 13 September 2018 (14:45:35 CEST)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints201809.0225.v1

General and Prospective Views on Oxidation Reactions in Heterogeneous Catalysis

Sabine Valange, Jacques Védrine

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: heterogeneous catalytic oxidation, gas-solid, liquid-solid, partial and total oxidation, biomass based raw materials, activation methods

Online: 13 September 2018 (02:17:55 CEST)

Show abstract| Download PDF| Share

Preprint COMMUNICATION | doi:10.20944/preprints201809.0071.v1

Conformal Coating by Liquid Route on Three-Dimensional Topology

Poirot Nathalie, Raynal Pierre-Ivan

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: nanostructures; thin films; 3D-coating

Online: 4 September 2018 (15:02:50 CEST)

Show abstract| Download PDF| Share

Preprint TECHNICAL NOTE | doi:10.20944/preprints201808.0100.v1

The New Anode Environmentally Friendly for Water Electrolysis Based on 430 Stainless Steel Coated with Recycled Cobalt from Spent Lithium–Ion Batteries

Eric M. Garcia, Hosane A. Taroco

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: Li-ion batteries; anode; cobalt recycling

Online: 6 August 2018 (08:14:51 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201808.0098.v1

Fast Electrochemical Method for Organic Dye Decolorization Using the Recycled Li-ion Batteries

Eric M. Garcia, Hosane A. Taroco

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: recycling; Li-ion, methylene blue; LiCoO2

Online: 6 August 2018 (06:25:05 CEST)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints201808.0023.v1

Recent Advances in the Direct Synthesis of Hydrogen Peroxide Using Chemical Catalysis – a review

Sumanth Ranganathan, Volker Sieber

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: catalyst; direct synthesis; hydrogen peroxide; Pd based catalyst; reactor engineering; microreactor

Online: 1 August 2018 (14:10:48 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201808.0005.v1

Preparation, Characterization, and Sludge Conditioning of Cationic Polyacrylamide Synthesized by a Novel UV-Initiated System

Qingqing Guan, Guocheng Zhu, Yi Liao, Jin Xu, Xiaoxu Sun, Fang Tian, Jiaxing Xu, Minghan Luo

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: polymer; characterization; sludge conditioning; UV; flocculant

Online: 1 August 2018 (08:18:34 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201807.0593.v1

Dopamine Incorporated Forward Osmosis Membranes with High Structural Stability and Chlorine Resistance

Yi Wang, Zhendong Fang, Chaoxin Xie, Shuaifei Zhao, Derrick Ng, Zongli Xie

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: forward osmosis; thin-film composite; dopamine; interfacial polymerization; structural stability; chlorine resistance

Online: 30 July 2018 (15:30:24 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201807.0592.v1

Low-temperature electrocatalytic conversion of CO2 to liquid fuels: effect of the Cu particle size

Antonio De Lucas-Consuegra, Juan Carlos Serrano-Ruiz, Nuria Gutierrez-Guerra, José Luis Valverde

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: CO2 electroreduction; CO2 valorization; Cu catalyst; Particle size; PEM; Acetaldehyde production; Methanol production

Online: 30 July 2018 (15:04:33 CEST)

Show abstract| Download PDF| Share

Preprint COMMUNICATION | doi:10.20944/preprints201807.0583.v1

Enhancement Photocatalytic Activity of the Heterojunction of Two-Dimensional Hybrid Semiconductors ZnO/V₂O₅

Juan Aliaga, Nasla Cifuentes, Guillermo Gonzalez, Clivia Sotomayor-Torres, Eglantina Benavente

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: photocatalysis; heterojunction; two dimensional semiconductor; ZnO; V2O5; methylene blue degradation

Online: 30 July 2018 (10:46:33 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints201807.0530.v1

Catalytic Oxidation of C₃-C₄ Mixture into Industrially Important Chemical Products

Tolkyn Baizhumanova, Svetlana Tungatarova, Zauresh Zheksenbaeva, Damir Abdukhalykov, Rabiga Sarsenova, Kaysar Kassymkan, Gulnar Kaumenova

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: catalytic oxidation; oxide catalysts; C3-C4 mixture; ethylene; propylene; butylenes; heteropoly compound

Online: 27 July 2018 (04:07:12 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201807.0289.v1

A Feasible Experimental Evaluation of Surfactant Polymer Coupled with Direct Foam Flooding on the Oil Recovery Factor

Afshin Davarpanah

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: surfactant polymer; supercritical carbon dioxide; foaming agent; blockage; recovery factor

Online: 16 July 2018 (13:12:14 CEST)

Show abstract| Download PDF| Share

Chemistry and Materials Science