Aging effects of nanoscale ceria in ceria-platinum composite electrodes for direct alcohol electro-oxidation

被引：13

作者：

Anderson, Jordan M. ^{[1
,2
,3
]}

Patel, Jigna ^{[1
,2
,3
]}

Karakoti, Ajay S. ^{[1
,2
,3
]}

Greeneltch, Nathan ^{[1
,2
,3
]}

Diaz, Diego J. ^{[1
]}

Seal, Sudipta ^{[2
,3
]}

机构：

[1] Univ Cent Florida, Dept Chem, Nanosci Technol Ctr, Orlando, FL 32816 USA

[2] Univ Cent Florida, Adv Mat Proc & Anal Ctr, Orlando, FL 32816 USA

[3] Univ Cent Florida, Mech Mat & Aerosp Engn Dept, Orlando, FL 32816 USA

来源：

ELECTROCHIMICA ACTA | 2011年 / 56卷 / 05期

关键词：

Fuel Cells; Ceria; DMFC; Electrocatalysis; ANODE CATALYSTS; FORMIC-ACID; METHANOL; ETHANOL; NANOPARTICLES; OXIDATION; GOLD;

D O I：

10.1016/j.electacta.2010.11.061

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Nanocrystalline Pt/CeO2 composite electrodes were fabricated to study the electrochemical oxidation of methanol and ethanol. The performance of the electrodes was tested as the ceria solutions aged over time. It was observed that the performance oscillated with time, suggesting that the catalytic behavior towards alcohol oxidation was greatly dependent on the aging of the particles. These results point to a great dependence of the catalytic effect on the redox state of the ceria particles. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：2541 / 2545

页数：5

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