Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

High Energy Pulsed Laser Beam to Produce a Thin Layer of Crystalline Silver without Heating the Deposition Substrate and Its Catalytic Effects

Alexandru Cocean
,
Georgiana Cocean
,
Cristina Postolachi
,
Silvia Garofalide
,
Daniela Angelica Pricop
ORCID logo ,
Bogdanel Silvestru Munteanu
,
Georgiana Bulai
ORCID logo ,
Nicanor Cimpoesu
,
Iuliana Motrescu
,
Vasile Pelin
ORCID logo ,
Razvan Vasile Ababei
ORCID logo ,
Dan-Gheorghe Dimitriu
* ORCID logo ,
Iuliana Cocean
,
Silviu Gurlui
* ORCID logo
Version 1 : Received: 27 March 2024 / Approved: 28 March 2024 / Online: 28 March 2024 (09:38:41 CET)

How to cite: Cocean, A.; Cocean, G.; Postolachi, C.; Garofalide, S.; Pricop, D.A.; Munteanu, B.S.; Bulai, G.; Cimpoesu, N.; Motrescu, I.; Pelin, V.; Ababei, R.V.; Dimitriu, D.; Cocean, I.; Gurlui, S. High Energy Pulsed Laser Beam to Produce a Thin Layer of Crystalline Silver without Heating the Deposition Substrate and Its Catalytic Effects. Preprints 2024, 2024031717. https://doi.org/10.20944/preprints202403.1717.v1 Cocean, A.; Cocean, G.; Postolachi, C.; Garofalide, S.; Pricop, D.A.; Munteanu, B.S.; Bulai, G.; Cimpoesu, N.; Motrescu, I.; Pelin, V.; Ababei, R.V.; Dimitriu, D.; Cocean, I.; Gurlui, S. High Energy Pulsed Laser Beam to Produce a Thin Layer of Crystalline Silver without Heating the Deposition Substrate and Its Catalytic Effects. Preprints 2024, 2024031717. https://doi.org/10.20944/preprints202403.1717.v1

Abstract

Crystalline silver thin layers were obtained by high-energy pulsed laser ablation without heating of the deposition substrate. The fluid Plateau-Rayleigh (PRI), Rayleigh – Taylor (RTI) and Richtmyer – Meshkov (RMI) instabilities, as well as crown splash induced during pulsed laser deposition (PLD) in high energy regime, resulting in ring and pearl shaped structures, offer the benefit of increased sorption surface. These morphological structures obtained for the silver thin layers make them of interest for catalytic applications. The study presented with this work addresses both the fundamental and applied issues on the morphological structures obtained for the silver thin layer and their catalytic function in organic processes. In this sense, the catalytic action of the thin silver layer was highlighted by modifications of the Reactive Blue 21 dye (C.I.) in aqueous solution with sodium bicarbonate. Specific investigations and analyzes were carried out by electron microscopy and elemental analysis (SEM-EDX), atomic force microscopy (AFM) and profilometry, mass spectrometry, ablation plasma diagnosis, diffractograms (XRD), as well as IR spectroscopy (FTIR). In addition to the experimental investigation and analyzes, simulation of the ionization energy threshold was conducted in COMSOL for complementary evaluation on the involved processes and phenomena.

Keywords

catalysis; ablation plasma diagnosis; borax treatment

Subject

Physical Sciences, Applied Physics

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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