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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.)

Preparation of PtSn/C electrocatalysts using citric acid as reducing agent for direct ethanol fuel cell (DEFC)

Full text
Author(s):
Oliveira Neto, Almir [1] ; Verjulio-Silva, R. W. R. [1] ; Linardi, M. [1] ; Spinace, E. V. [1]
Total Authors: 4
Affiliation:
[1] IPEN CNEN SP, BR-05508000 Sao Paulo - Brazil
Total Affiliations: 1
Document type: Journal article
Source: IONICS; v. 16, n. 1, p. 85-89, FEB 2010.
Web of Science Citations: 9
Abstract

PtSn/C electrocatalysts (Pt:Sn atomic ratios of 50:50 and 60:40) were prepared using citric acid as reducing agent, and the pH of the reaction medium was varied by the addition of OH(-) ions. The obtained electrocatalysts were characterized by energy dispersive X-ray analysis, X-ray diffraction, and transmission electron microscopy. The electrocatalysts were tested on the direct ethanol fuel cell (DEFC) at 90 A degrees C. The obtained PtSn/C electrocatalysts showed the presence of a face-centered cubic, Pt, and SnO(2) phases. In DEFC studies, the PtSn/C electrocatalysts showed a superior performance compared to a commercial PtSn/C and Pt/C electrocatalysts from E-TEK. (AU)

FAPESP's process: 07/07898-1 - Preparation and characterization of PtRu/C + rare earth, PtSn/C + Rare earth electrocatalysts for direct ethanol fuel cell
Grantee:Almir Oliveira Neto
Support Opportunities: Regular Research Grants