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Glycerol electro-oxidation on metallic nanoparticles with interest in basic as well as in applied science. Simultaneous production of energy and fine chemicals

Abstract

Bio-alcohols electro-oxidations mechanism, have been studying by using electrochemical and spectroscopic techniques, especially for the cases of methanol (MeOH) and ethanol (EtOH). However, considering only the simpler and cheaper alcohols, there is a lack of awareness about the EtOH oxidation intermediates and a total lack of glycerol (GlOH), and bigger molecules, intermediates knowledge. However, due to the explosion of the EtOH economy this alcohol has been extensively studied, mainly in Brazil. The most of the published works are not strictly fundamental science papers, but usually neither fundamental nor applied. This fact unhappily generates a relatively poor improvement so in the fundamental knowledge of electrode processes as well as in the applied field. On the other hand, there is a growing number of GlOH publication during the last years and with promising results due to the fact that this cheap alcohol can be easier oxidized than EtOH. Besides, some of the GlOH partial oxidation products are very interesting fine chemicals with added value. Therefore, important efforts are required in order to develop materials with two main objectives: 1) GlOH efficient oxidation to CO2 and with high rate in Fuel Cells, and 2) GlOH efficient and selective oxidation at low potentials to simultaneously obtain fine chemicals and ultrapure H2 in electrolyzers. In this project, we propose to perform mechanistic studies over some metallic surfaces (Pt-based in acid media and Au-based in basic media). The reaction pathways will be investigated by using in situ FTIR, DEMS, on line HPLC and Raman together with common electrochemical experiments. These kinds of experimental measurements, together with computational experiments by means of DFT, will permit a deeper understanding on the relationship between the different reaction pathways and the characteristics of the metallic catalyst, which will provide us with a deeper understanding of the electrodes processes in the catalyst interface. Finally, this project will allow the formation of a research group with a multidisciplinary approach and a very important potential to study mechanisms of electrochemical reaction. (AU)

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Scientific publications (8)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
PERINI, NICKSON; HESSEL, CRISTIAN; BOTT-NETO, JOSE L.; PIRES, CLEO T. G. V. M. T.; FERNANDEZ, PABLO S.; SITTA, ELTON. Photoelectrochemical oxidation of glycerol on hematite: thermal effects, in situ FTIR and long-term HPLC product analysis. Journal of Solid State Electrochemistry, v. 25, n. 3 JAN 2021. Web of Science Citations: 0.
LIMA, CARLOS C.; RODRIGUES, MARTA V. F.; NETO, ANTONIO F. M.; ZANATA, CINTHIA R.; PIRES, CLEO T. G. V. M. T.; COSTA, LUELC S.; SOLLA-GULLON, JOSE; FERNANDEZ, PABLO S. Highly active Ag/C nanoparticles containing ultra-low quantities of sub-surface Pt for the electrooxidation of glycerol in alkaline media. APPLIED CATALYSIS B-ENVIRONMENTAL, v. 279, DEC 15 2020. Web of Science Citations: 0.
BOTT-NETO, JOSE L.; RODRIGUES, MARTA V. F.; SILVA, MARIANA C.; CARNEIRO-NETO, EVALDO B.; WOSIAK, GABRIEL; MAURICIO, JUNIOR C.; PEREIRA, ERNESTO C.; FIGUEROA, SANTIAGO J. A.; FERNANDEZ, PABLO S. Versatile Spectroelectrochemical Cell for In Situ Experiments: Development, Applications, and Electrochemical Behavior. CHEMELECTROCHEM, v. 7, n. 21 AUG 2020. Web of Science Citations: 2.
DE SOUZA, MATHEUS B. C.; YUKUHIRO, VICTOR Y.; VICENTE, RAFAEL A.; MENEGAZ TEIXEIRA PIRES, CLEO T. G. VILELA; BOTT-NETO, JOSE L.; FERNANDEZ, PABLO S. Pb- and Bi-Modified Pt Electrodes toward Glycerol Electrooxidation in Alkaline Media. Activity, Selectivity, and the Importance of the Pt Atoms Arrangement. ACS CATALYSIS, v. 10, n. 3, p. 2131-2137, FEB 7 2020. Web of Science Citations: 0.
DE SOUZA, MATHEUS B. C.; VICENTE, RAFAEL A.; YUKUHIRO, VICTOR Y.; PIRES, CLEO T. G. V. M. T.; CHEUQUEPAN, WILLIAM; BOTT-NETO, JOSE L.; SOLLA-GULLON, JOSE; FERNANDEZ, PABLO S. Bi-modified Pt Electrodes toward Glycerol Electrooxidation in Alkaline Solution: Effects on Activity and Selectivity. ACS CATALYSIS, v. 9, n. 6, p. 5104-5110, JUN 2019. Web of Science Citations: 3.
DE SOUZA, MATHEUS B. C.; FERNANDEZ, PABLO S.; SOLLA-GULLON, J. Adatom decorated shape-controlled metal nanoparticles: Advanced electrocatalysts for energy conversion. CURRENT OPINION IN ELECTROCHEMISTRY, v. 9, p. 121-128, JUN 2018. Web of Science Citations: 6.
PREVIDELLO, B. A. F.; FERNANDEZ, P. S.; TREMILIOSI-FILHO, G.; VARELA, H. Probing the surface fine structure through electrochemical oscillations. Physical Chemistry Chemical Physics, v. 20, n. 8, p. 5674-5682, FEB 28 2018. Web of Science Citations: 1.
TELES, RODRIGO; ARENILLAS, ANA; DA SILVA, GABRIEL C.; FERNANDEZ, PABLO S.; CARDOSO, EDUARDO S. F.; MAIA, GILBERTO; MARTINS, CAUE A. Understanding the Influence of the Biomass-Derived Alcohols on the Activity and Stability of Pt Nanoparticles Supported on Graphene Nanoribbons. ELECTROCATALYSIS, v. 8, n. 2, p. 151-163, MAR 2017. Web of Science Citations: 5.

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