DMFCs with Enhanced Catalytic Activity and Durability using Transition-Metal Carbides as Catalyst Support

被引：7
|
作者：
Nishanth, K. G. [1 ]
Sridhar, P. [1 ]
Pitchumani, S. [1 ]
Shukla, A. K. [2 ]
机构：
[1] CSIR Cent Electrochem Res Inst, Madras Unit, CSIR Madras Complex, Madras 600113, Tamil Nadu, India
[2] Indian Inst Sci, Solid State & Struct Chem Unit, Bangalore 560012, Karnataka, India
来源：
POLYMER ELECTROLYTE FUEL CELLS 10, PTS 1 AND 2 | 2010年 / 33卷 / 01期
关键词：
METHANOL FUEL-CELL; SURFACE-AREA; ELECTROCATALYSTS; TUNGSTEN; RU; ELECTROOXIDATION; CROSSOVER; ANODE; CO;
D O I：
10.1149/1.3484694
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Molybdenum carbide (MoC) and Tungsten carbide (WC) are obtained by direct carbonization method. Pt-Ru supported on MoC, WC and Vulcan XC-72R are prepared, and characterized by XRD and TEM techniques. Electrochemical activity for methanol electro-oxidation is studied by cyclic voltammetry (CV) and durability study on all the electro-catalysts is conducted by accelerated durability test (ADT). The electrochemical activity for methanol electro-oxidation of carbide-supported electro-catalysts is found to be higher than carbon-supported catalysts before and after ADT. Direct methanol fuel cells (DMFCs) employing carbide-supported Pt-Ru exhibit higher performance towards methanol oxidation in relation to carbon-supported Pt-Ru.
引用
收藏
页码：2027 / +
页数：2
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