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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.)

Electro-oxidation of ethanol using PtSnRh/C electrocatalysts prepared by an alcohol-reduction process

Full text
Author(s):
Spinace, E. V. [1] ; Dias, Ricardo R. [1] ; Brandalise, Michele [1] ; Linardi, Marcelo [1] ; Oliveira Neto, Almir [1]
Total Authors: 5
Affiliation:
[1] IPEN CNEN SP, BR-05508000 Sao Paulo - Brazil
Total Affiliations: 1
Document type: Journal article
Source: IONICS; v. 16, n. 1, p. 91-95, FEB 2010.
Web of Science Citations: 43
Abstract

PtRh/C (90:10), PtRh/C (50:50), PtSn/C (50:50), and PtSnRh/C (50:40:10) electrocatalysts were prepared by an alcohol-reduction process using ethylene glycol as solvent and reduction agent and Vulcan Carbon XC72 as supports. The electrocatalysts were characterized by energy-dispersive X-ray analysis, X-ray diffraction, and transmission electron microscopy. The electro-oxidation of ethanol was studied by cyclic voltammetry chronoamperometry at room temperature and on a single cell of a direct ethanol fuel cell at 100 A degrees C. Cyclic voltammetry and chronoamperometry experiments showed that PtSnRh/C and PtSn/C electrocatalysts have similar performance for ethanol oxidation at room temperature, while the activity of PtRh/C electrocatalysts was very low. At 100 A degrees C on a single cell, PtSnRh/C showed superior performance compared to PtSn/C and PtRh/C electrocatalysts. (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