Enhanced electro-oxidation of ethanol using PtSn/CeO2-C electrocatalyst prepared by an alcohol-reduction process

被引：66
|
作者：
Oliveira Neto, Almir [1 ]
Farias, Luciana A. [1 ]
Dias, Ricardo R. [1 ]
Brandalise, Michelle [1 ]
Linardi, Marcelo [1 ]
Spinace, Estevam V. [1 ]
机构：
[1] IPEN, CNEN SP, BR-05508900 Sao Paulo, Brazil
来源：
ELECTROCHEMISTRY COMMUNICATIONS | 2008年 / 10卷 / 09期
基金：
巴西圣保罗研究基金会;
关键词：
PtSn/CeO2-C; alcohol-reduction process; ethanol electro-oxidation; direct ethanol fuel cell;
D O I：
10.1016/j.elecom.2008.06.023
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
PtSn/CeO2-C electrocatalysts were prepared by an alcohol-reduction process using ethylene glycol as solvent and reduction agent and CeO2 and Vulcan Carbon XC72 as supports. The electrocatalysts were characterized by EDX and XRD. The electro-oxidation of ethanol was studied at room temperature by chronoamperometry. PtSn/CeO2-C electrocatalyst with 15 wt% of CeO2 showed a significant increase of performance for ethanol oxidation compared to PtSn/C catalyst. Preliminary tests at 100 degrees C on a single cell of a direct ethanol fuel cell (DEFC) also confirm the results obtained by chronoamperometry. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：1315 / 1317
页数：3
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