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Hybrid electrocatalysts based on Pd, Pt and Sn nanoparticles, and on ceria nanorods for application in fuel cells

Grant number: 17/26288-1
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): April 01, 2018
Effective date (End): February 28, 2021
Field of knowledge:Physical Sciences and Mathematics - Chemistry
Principal Investigator:Mauro Coelho dos Santos
Grantee:Victor dos Santos Pinheiro
Home Institution: Centro de Ciências Naturais e Humanas (CCNH). Universidade Federal do ABC (UFABC). Ministério da Educação (Brasil). Santo André , SP, Brazil


Global warming and the depletion of fossil fuels have caused great concern for society, so it is necessary to search and study forms of sustainable and renewable energy. In this sense, fuel cells and metal/air batteries are of great interest, and the study of more efficient and cost-effective materials that can be used in these devices is of great importance. In view of these challenges, this project aims to develop hybrid electrocatalysts based on Pd, Pt and Sn nanoparticles, and ceria nanorods (NR CeO2), supported on Vulcan XC-72 carbon and carbon nanotubes, to be applied to fuel cells. In order to evaluate these electrocatalysts the Oxygen Reduction Reaction (ORR), Oxygen Evolution Reaction (OER) and the Ethanol Oxidation Reaction (EOR) in alkaline and/or acid medium will be studied. The electrocatalysts will be characterized by Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), X-Ray Diffraction (XRD), surface area by BET, contact angle, zeta potential and X-ray Photoelectron Spectroscopy (XPS). Fourier transform infrared spectroscopy (ATR-FTIR) in situ of by-products formed in EOR will also be performed. The ORR will be studied by the Rotating Ring-Disc Electrode (RRDE) technique and the OER with the Rotating Disc Electrode (RDE) technique. The electrocatalysts will be applied in fuel cell experiments and their applicability in metal/air. (AU)

Matéria(s) publicada(s) na Agência FAPESP sobre a bolsa:
Niobium used as catalyst in fuel cell  
Articles published in other media outlets: (34 total)
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Scientific publications (6)
(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)
MOURA SOUZA, F.; BOHNSTEDT, P.; PINHEIRO, V. S.; OLIVEIRA, L. A.; BATISTA, B. L.; PARREIRA, L. S.; ANTUNES, R. A.; SANTOS, M. C. Niobium increasing the electrocatalytic activity of palladium for alkaline direct ethanol fuel cell. JOURNAL OF ELECTROANALYTICAL CHEMISTRY, v. 858, FEB 1 2020. Web of Science Citations: 0.
AVEIRO, L. R.; DA SILVA, A. G. M.; CANDIDO, E. G.; PAZ, E. C.; PINHEIRO, V. S.; PARREIRA, L. S.; SOUZA, F. M.; ANTONIN, V. S.; CAMARGO, P. H. C.; DOS SANTOS, M. C. MnO2/Vulcan-Based Gas Diffusion Electrode for Mineralization of Diazo Dye in Simulated Effluent. ELECTROCATALYSIS, JAN 2020. Web of Science Citations: 0.
PAZ, EDSON C.; PINHEIRO, VICTOR S.; SOUSA JOCA, JHONNY FRANK; SOTANA DE SOUZA, RAFAEL AUGUSTO; GENTIL, TUANI C.; LANZA, MARCOS R. V.; MOISES DE OLIVEIRA, HUEDER PAULO; PEREIRA NETO, ANA MARIA; GAUBEUR, IVANISE; SANTOS, MAURO C. Removal of Orange II (OII) dye by simulated solar photoelectro-Fenton and stability of WO2.72/Vulcan XC72 gas diffusion electrode. Chemosphere, v. 239, JAN 2020. Web of Science Citations: 0.
PAZ, EDSON C.; PINHEIRO, VICTOR S.; AVEIRO, LUCI R.; SOUZA, FERNANDA L.; LANZA, V, MARCOS R.; SANTOS, MAURO G. Hydrogen Peroxide Electrogeneration by Gas Diffusion Electrode Modified with Tungsten Oxide Nanoparticles for Degradation of Orange II and Sunset Yellow FCF Azo Dyes. Journal of the Brazilian Chemical Society, v. 30, n. 9, p. 1964-1975, SEP 2019. Web of Science Citations: 0.
GENTIL, TUANI C.; PINHEIRO, VICTOR S.; PAZ, EDSON C.; SOUZA, FELIPE M.; PARREIRA, LUANNA S.; SANTOS, MAURO C. Addition of CeO2 Nanorods in PtSn-Based Electrocatalysts for Ethanol Electrochemical Oxidation in Acid Medium. Journal of the Brazilian Chemical Society, v. 30, n. 8, p. 1634-1646, AUG 2019. Web of Science Citations: 0.
PINHEIRO, VICTOR S.; PAZ, EDSON C.; AVEIRO, LUCI R.; PARREIRA, LUANNA S.; SOUZA, FELIPE M.; CAMARGO, PEDRO H. C.; SANTOS, MAURO C. Mineralization of paracetamol using a gas diffusion electrode modified with ceria high aspect ratio nanostructures. Electrochimica Acta, v. 295, p. 39-49, FEB 1 2019. Web of Science Citations: 3.

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