摘要
It was reported for the first time that phosphorictungstenic acid （PWA） could promote the oxygen reduction reaction （ORR） and inhibit the methanol oxidation reaction at the cathodic Pt/C catalyst in the direct methanol fuel cell （DMFC）. When the weight ratio of PWA to Pt/C is 1, the composite catalyst increases the reduction current of oxygen by about 38% and decreases the oxidation current of methanol by about 76% compared with that of the Pt/C catalyst.
It was reported for the first time that phosphorictungstenic acid （PWA） could promote the oxygen reduction reaction （ORR） and inhibit the methanol oxidation reaction at the cathodic Pt/C catalyst in the direct methanol fuel cell （DMFC）. When the weight ratio of PWA to Pt/C is 1, the composite catalyst increases the reduction current of oxygen by about 38% and decreases the oxidation current of methanol by about 76% compared with that of the Pt/C catalyst.
基金
The authors are grateful for the financial supports of“973”Project(G2000026408)
“863"Project of Science and Technology Ministry of China(2001 AA323060,2003AA517060)
the National Natural Science Foundation of China(20373068,20433060)
Foundation of Department of Science and Technology of Jiangsu Province(BG200302)
Industrialization Foundation of Advanced Technique of Jiangsu Province(JH02-080)
National“211”Key Project.
