Co-catalytic effect of nickel in the electro-oxidation of ethanol on binary Pt-Sn electrocatalysts

被引：138

作者：

Spinacé, EV ^{[1
]}

Linardi, M ^{[1
]}

Neto, AO ^{[1
]}

机构：

[1] IPEN CNEN SP, BR-05508900 Sao Paulo, Brazil

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2005年 / 7卷 / 04期

基金：

巴西圣保罗研究基金会;

关键词：

ethanol; fuel cell; electro-oxidation; PtSn/C; PtSnNi/C; electrocatalysts;

D O I：

10.1016/j.elecom.2005.02.006

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

PtSn/C electrocatalysts with Pt:Sn molar ratios of 75:25, 50:50 and 25:75 and PtSnNi/C electrocatalyst with a Pt:Sn:Ni molar ratio of 50:40:10 were prepared by the alcohol-reduction process using ethylene glycol as solvent and reducing agent. The electrocatalysts were characterized by EDX, XRD and cyclic voltammetry. The electro-oxidation of ethanol was studied by cyclic voltammetry and chronoamperometry using the thin porous coating technique. PtSnNi/C electrocatalyst showed a superior performance compared to PtSn/C electrocatalysts in the potential range of interest for direct ethanol fuel cell. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：365 / 369

页数：5

共 31 条

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