Alcohol oxidation on nanocrystalline oxide Pd/C promoted electrocatalysts

被引:368
作者
Shen, PK [1 ]
Xu, CW [1 ]
机构
[1] Sun Yat Sen Univ, State Key Lab Optoelect Mat & Technol, Sch Phys & Engn, Guangzhou 510275, Guangdong, Peoples R China
基金
中国国家自然科学基金;
关键词
alcohol oxidation; fuel cell; Pd/C; nanocrystalline oxide; electrocatalyst;
D O I
10.1016/j.elecom.2005.11.013
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
Pd/C promoted with nanocrystalline oxides electrocatalysts were prepared by the intermittent microwave heating. The electrooxidation of methanol, ethanol, glycerol and ethylene glycol on CeO2, Co3O4, Mn3O4 and NiO promoted Pd/C catalysts in alkaline media was studied. Such electrocatalysts are superior to Pt-based electrocatalysts in terms of activity and poison tolerance. The most significant result is that the onset potential for ethanol oxidation on Pd-NiO/C electrocatalyst is shifted negatively by 300 mV compared with that of Pt/C electrocatalyst under the same experimental conditions. The electrochemical parameters were measured and analyzed. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:184 / 188
页数:5
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