Version 1
: Received: 22 May 2024 / Approved: 23 May 2024 / Online: 23 May 2024 (14:14:35 CEST)
Version 2
: Received: 23 May 2024 / Approved: 27 May 2024 / Online: 28 May 2024 (14:26:01 CEST)
How to cite:
Santos Silva, E. D.; de Jesus Serrão, F. T.; dos Santos Domingos, G. H.; Brito Ferreira Oliveira, T. M.; Liutheviciene Cordeiro, M. A. Nanocrystalline CuOx Thin Films for Electrochemical Water Splitting. Preprints2024, 2024051556. https://doi.org/10.20944/preprints202405.1556.v1
Santos Silva, E. D.; de Jesus Serrão, F. T.; dos Santos Domingos, G. H.; Brito Ferreira Oliveira, T. M.; Liutheviciene Cordeiro, M. A. Nanocrystalline CuOx Thin Films for Electrochemical Water Splitting. Preprints 2024, 2024051556. https://doi.org/10.20944/preprints202405.1556.v1
Santos Silva, E. D.; de Jesus Serrão, F. T.; dos Santos Domingos, G. H.; Brito Ferreira Oliveira, T. M.; Liutheviciene Cordeiro, M. A. Nanocrystalline CuOx Thin Films for Electrochemical Water Splitting. Preprints2024, 2024051556. https://doi.org/10.20944/preprints202405.1556.v1
APA Style
Santos Silva, E. D., de Jesus Serrão, F. T., dos Santos Domingos, G. H., Brito Ferreira Oliveira, T. M., & Liutheviciene Cordeiro, M. A. (2024). Nanocrystalline CuOx Thin Films for Electrochemical Water Splitting. Preprints. https://doi.org/10.20944/preprints202405.1556.v1
Chicago/Turabian Style
Santos Silva, E. D., Thiago Mielle Brito Ferreira Oliveira and Marco Aurélio Liutheviciene Cordeiro. 2024 "Nanocrystalline CuOx Thin Films for Electrochemical Water Splitting" Preprints. https://doi.org/10.20944/preprints202405.1556.v1
Abstract
New advances in creating effective and affordable copper-based catalysts for water splittingrepresent a promising strategy for driving sustainable energy technologies.However, ma-terials containing copper are susceptible to corrosion and agglomeration. In this study, wedescribe a synthesis route to produce olamine-functionalized CuO nanoparticles using theHot Injection method.Nanoparticles were obtained and subsequently deposited on FTOsubstrates, undergoing thermal treatment at 500°C and 600°C in atmospheres containingO2andN2, aiming to enhance the adhesion of the active material to the substrate and modifyits oxidation state. Microstructural properties were analyzed using XRD, SEM, and TEM,while electrochemical properties were studied using CV, LSV, and EIS. Electrodes treatedthermally in anN2atmosphere at 600°C exhibited higher ESCA, indicating a greater areaof active sites exposed to surface reactions and, therefore, superior catalytic activity in Hy-drogen Evolution Reaction (HER). These findings show an interesting strategy for avoidingrapid electron-hole recombination and, consequently, CuO corrosion. For Oxygen EvolutionReaction (OER), samples treated thermally inO2atmosphere at 500°C and 600°C appear tobe more effective.
Keywords
CuOx; Hydrogen evolution; Oxygen evolution;
Subject
Chemistry and Materials Science, Ceramics and Composites
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.
