Endurance study of a solid polymer electrolyte direct ethanol fuel cell based on a Pt-Sn anode catalyst

Autor(es)

Zignani, S. C. ^[1] ; Baglio, V. ^[2] ; Linares, J. J. ^[3] ; Monforte, G. ^[2] ; Gonzalez, E. R. ^[1] ; Arico, A. S. ^[2]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Inst Quim Sao Carlos, BR-13560970 Sao Carlos, SP - Brazil

^[2] CNR ITAE Inst, I-98126 Messina - Italy

^[3] Univ Brasilia, Inst Quim, BR-70910000 Brasilia, DF - Brazil

• Tipo de documento: Artigo Científico
• Fonte: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY; v. 38, n. 26, p. 11576-11582, AUG 30 2013.
• Citações Web of Science: 19

Resumo

The performance decay of a solid polymer electrolyte direct ethanol fuel cell (DEFC) based on a Pt3Sn1/C anode catalyst during an endurance test has been investigated. The effect of different cell shut-down procedures on the cycled behaviour of the DEFC has been studied. To get specific insights into the degradation mechanism, polarization and ac-impedance spectroscopy studies have been carried out. These analyses have been complemented by post-operation transmission electron microscopy and X-ray diffraction studies. The combination of these techniques has allowed to get information on recoverable and unrecoverable losses. This provides a basis for further improvement of DEFC components. Copyright (C) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved. (AU)

• Processo FAPESP: 10/07108-3 - Desenvolvimento de estratégias para aumentar a eficiência da reação de oxidação de etanol pelo mecanismo de 12 elétrons, dando CO2 como produto, no contexto das células a combustível de etanol direto
• Beneficiário: José Joaquín Linares León
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado