METHANOL ELECTROOXIDATION ON CARBON-SUPPORTED PT-WO3-X ELECTRODES IN SULFURIC-ACID ELECTROLYTE

被引：96
|
作者：
SHUKLA, AK
RAVIKUMAR, MK
ARICO, AS
CANDIANO, G
ANTONUCCI, V
GIORDANO, N
HAMNETT, A
机构：
[1] CNR,INST TAE,MESSINA,ITALY
[2] UNIV NEWCASTLE UPON TYNE,DEPT CHEM,NEWCASTLE TYNE NE1 7RU,TYNE & WEAR,ENGLAND
来源：
JOURNAL OF APPLIED ELECTROCHEMISTRY | 1995年 / 25卷 / 06期
关键词：
D O I：
10.1007/BF00573210
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Electrooxidation of methanol has been studied in sulphuric acid electrolyte at 60 degrees C on carbon-supported Pt-WO3-x, electrodes employing varying amounts of WO3-x,. It is found that the electrodes containing (3:1) Pt-WO3-x, composite catalyst exhibit a higher catalytic activity towards methanol electrooxidation than platinized carbon electrodes without WO3-x. In the light of the XPS and XRD data on the carbon-supported (3:1) Pt-WOx sample, it is speculated that the WOx is present in the form of an oxyhydroxide, which can promote surface oxy-species on platinum by proton transfer.
引用
收藏
页码：528 / 532
页数：5
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