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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Advancing direct ethanol fuel cell operation at intermediate temperature by combining Nafion-hybrid electrolyte and well-alloyed PtSn/C electrocatalyst

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Author(s):
Dresch, Mauro Andre [1, 2] ; Matos, Bruno Ribeiro [1] ; Martins Godoi, Denis Ricardo [3] ; Linardi, Marcelo [1] ; Fonseca, Fabio Coral [1] ; Mercedes Villullas, Hebe de las [3] ; Santiago, Elisabete Inacio [1]
Total Authors: 7
Affiliation:
[1] IPEN CNEN SP, Inst Pesquisas Energet & Nucl, Av Prof Lineu Prestes 2242, BR-05508000 Sao Paulo, SP - Brazil
[2] Univ Fed Mato Grosso UFMT, Inst Ciencias Nat Humanas & Sociais, Av Alexandre Ferronato 1200, BR-78550728 Sinop, MT - Brazil
[3] Univ Estadual Paulista, Inst Quim, UNESP, Rua Prof Francisco Degni 55, BR-14800060 Araraquara, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY; v. 46, n. 24, p. 13252-13264, APR 6 2021.
Web of Science Citations: 1
Abstract

The advancement of direct ethanol fuel cell (DEFC) represents a real challenge to electrochemical science because ethanol changes significantly the triple phase boundary properties such as the redox reactions and the proton transport. Ethanol molecules promote poor fuel cell performance due to their slow oxidation rate, reduction of the proton transport due to high affinity of ethanol by the membrane, and due to mixed potential when the ethanol molecules reach the cathode by crossover. DEFC performance has been improved by advances in the membranes, e.g., low ethanol crossover polymer composites, or electrode materials, e.g., binary/ternary catalysts. Herein, high temperature (130 degrees C) DEFC tests were systematically investigated by using optimized electrode and electrolyte materials: Nafion-SiO2 hybrid electrolyte and well-alloyed PtSn/C electrocatalyst. By optimizing both the electrode and the electrolyte in conjunction, DEFCs operating at 130 degrees C exhibited a threefold increase on performance as compared to standard commercially available materials. (C) 2021 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 14/12255-6 - Catalysis-nanostructure-properties relations: establishing basis for the design of multifunctional catalysts
Grantee:Hebe de las Mercedes Villullas
Support Opportunities: Regular Research Grants
FAPESP's process: 14/09087-4 - Studies on the use of bioethanol in proton exchange membrane and solid oxide fuel cells
Grantee:Marcelo Linardi
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 17/11937-4 - A sustainable path to methane conversion by advanced electrochemical technologies
Grantee:Fabio Coral Fonseca
Support Opportunities: Research Grants - Research Centers in Engineering Program
FAPESP's process: 14/50279-4 - Brasil Research Centre for Gas Innovation
Grantee:Julio Romano Meneghini
Support Opportunities: Research Grants - Research Centers in Engineering Program