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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.)

Ethanol Electrooxidation by Plurimetallic Pt-Based Electrocatalysts Prepared by Microwave Assisted Heating

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Author(s):
Palma, L. M. [1] ; Almeida, T. S. [1] ; Leonello, P. H. [1] ; De Andrade, A. R. [1]
Total Authors: 4
Affiliation:
[1] Univ Sao Paulo, Fac Filosofia Ciencias & Letras Ribeirao Preto, Dept Quim, BR-14040901 Ribeirao Preto, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Journal of the Electrochemical Society; v. 161, n. 4, p. F473-F479, 2014.
Web of Science Citations: 5
Abstract

The direct ethanol fuel cell (DEFC) has received increasing attention once the complete ethanol oxidation is difficult to accomplish and, so far, no catalyst has efficiently cleaved the C-C bond. This paper reports on electrocatalysts supported on carbon containing 40 wt% metal loading of Pt, Ru, Ni, and Sn prepared by microwave-assisted heating. The electrocatalysts displayed homogeneously distributed particles ranging from 3 to 5 mm. The cyclic voltammetric and chronoamperometric curves recorded in the presence and absence of ethanol in acid medium exhibited the characteristic transition metal electrocatalyst profile. Acetic acid and acetaldehyde were the major products after 12 h of electrolysis. The best electrocatalyst in a single Direct Ethanol Fuel Cells (DEFC) was Pt75Sm13Ru11Ni1/C (55 mW cm(-2)). This value denoted that the catalyst performed surprisingly well at relatively low temperature (80 degrees C). (C) 2014 The Electrochemical Society. All rights reserved. (AU)

FAPESP's process: 11/10213-6 - Development of direct alcohols fuel cells: production of prototypes of high power
Grantee:Livia Martins da Palma
Support Opportunities: Scholarships in Brazil - Doctorate