Electrochemistry
Communications
Carbon Nanotube and Carbon Black Supported Platinum Nanocomposites as Oxygen Reduction Electrocatalysts for Polymer Electrolyte Fuel Cells
Hiroyuki NAKANOWenzhen LILianbin XUZhongwei CHENMahesh WAJESusumu KUWABATAYushan YAN
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Volume 75 (2007) Issue 9 Pages 705-708

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Abstract

Pt supported on a binary support of multi-walled carbon nanotube (CNT) and carbon black (CB) with different ratio of CNT and CB (Pt/CNT-CB) has been prepared by reducing H2PtCl6 with ethylene glycol. Pt/CNT-CB (CNT/CB=50/50, 80/20), Pt/CB and Pt/CNT have been used as electrocatalysts for cathode in polymer electrolyte fuel cells (PEFC). In the low current density region, the cathode with a CNT/CB ratio of 50/50 shows the best performance as compared to CNT based catalyst. Whereas in the high current density region, the cathode with a CNT/CB ratio of 80/20 exhibits the best performance.

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© 2007 The Electrochemical Society of Japan
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