Improved kinetics of ethanol oxidation on Pd catalysts supported on tungsten carbides/carbon nanotubes

被引:93
作者
Hu, Fengping [2 ]
Cui, Guofeng [1 ]
Wei, Zidong [3 ]
Shen, Pei Kang [2 ]
机构
[1] Sun Yat Sen Univ, Sch Chem & Chem Engn, Guangzhou 501275, Guangdong, Peoples R China
[2] Sun Yat Sen Univ, Sch Phys & Engn, State Key Lab Optoelect Mat & Technol, Guangzhou 501275, Guangdong, Peoples R China
[3] Chongqing Univ, State Key Lab Power Transmiss Equipment & Syst Se, Chongqing 400044, Peoples R China
关键词
tungsten carbide; multiwalled carbon nanotubes; intermittent microwave heating; ethanol oxidation; fuel cells;
D O I
10.1016/j.elecom.2008.06.019
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
Pd nanciparticles on tungsten carbides modified multiwalled carbon nanotubes (Pd-WC/MWCNT) catalysts have been prepared by an intermittent microwave heating (IMH) technique for the first time. The Pd-WC/MWCNT catalysts are evaluated and show an improved kinetics for the ethanol oxidation. It is recognized that the significant increase in the catalytic activity for ethanol oxidation on Pd-WC/MWCNT is attributed to both the synergistic effect between Pd nanciparticles and the WC support and the structure effect of the MWCNT. This type catalyst can be universally used as the oxygen reduction catalyst in fuel cells and sensors both in alkaline and acidic solutions. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码:1303 / 1306
页数:4
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