Preparation of PtSn/C Electrocatalyst by Successive Reduction for Ethanol Electro-oxidation

被引：0

作者：

Ribeiro, Vilmaria A. ^{[1
]}

Neto, Almir Oliveira ^{[1
]}

Linardi, Marcelo ^{[1
]}

Spinace, Estevam V. ^{[1
]}

机构：

[1] Inst Pesquisas Energet & Nucl IPEN CNEN SP, BR-05508900 Sao Paulo, Brazil

来源：

18 SIMPOSIO BRASILEIRO DE ELETROQUIMICA E ELETROANALITICA (XVIII SIBEE) | 2012年 / 43卷 / 01期

关键词：

FUEL-CELLS; OXIDATION; CATALYSTS; METHANOL;

D O I：

10.1149/1.4704976

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

PtSn/C electrocatalyst was prepared in two steps: i) initially SnCl2 center dot 2H(2)O was reduced on the carbon support using sodium borohydride as reducing agent. At the second step the obtained Sn/C was used as support and H2PtCl6 center dot 6H(2)O was reduced by an alcohol-reduction process. The obtained PtSn/C electrocatalyst was characterized by X-ray diffraction and cyclic voltammetry. The electro-oxidation of ethanol was studied by chronoamperometry. The commercial electrocatalyst PtSn/C BASF (PtSn alloy) was used for comparison. The results showed that the PtSn/C electrocatalyst prepared by successive reduction was more active for ethanol electro-oxidation than the commercial PtSn/C BASF electrocatalyst.

引用

页码：339 / 344

页数：6

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