Electrocatalytic Oxidation of M ethanol on Promoted Pt/C Catalysts

Journal of South China University of Technology (Natural Science Edition) ›› 2005, Vol. 33 ›› Issue (7): 1-5.

Electrocatalytic Oxidation of M ethanol on Promoted Pt/C Catalysts

Liao Shi-jun Ye Li-yan

College of Chemical Science,South China Univ.of Tech.,Guangzhou 510640,Guangdong,China

Received:2004-07-27 Online:2005-07-25 Published:2005-07-25
Contact: 廖世军(1958-)，男，教授，博士生导师，主要从事催化化学、电化学、燃料电池及精细化工的研究． E-mail:chsjliao@scut.edu.en
About author:廖世军(1958-)，男，教授，博士生导师，主要从事催化化学、电化学、燃料电池及精细化工的研究．
Supported by:
广东省自然科学基金重点资助项目(036555)

Abstract

Abstract:

The electrocatalytic oxidation of methanol on promoted Pt/C catalysts,which were prepared using silico-molybedic acid or phosphotungstic acid as the promoter,was investigated.The efects of preparation methods,ad’ ditives,methanol concentration and reaction temperature on the catalytic activity were then studied by linear scan an d cvclic scan methods.and the catalysts were characterized by XRD and EDS.Th e results show that the Pt-Ru-Mo/C catalyst with the mass fraction of M0 0f 7.87% has 65% higher activity than the commercial catalyst Pt-Ru/C manufaetured by E.TEKCompany,and that the addition of silicomolybdic acid and phosphotungstic acid im-Droves the dispersion of active components,thus significantly enhan cing the catalytic activity and CO tolerance of the catalysts.

Key words: catalyst, methanol, electrocatalytic oxidation, molybdenum, tungsten, fuel cell

Liao Shi-jun Ye Li-yan. Electrocatalytic Oxidation of M ethanol on Promoted Pt/C Catalysts[J]. Journal of South China University of Technology (Natural Science Edition), 2005, 33(7): 1-5.

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Electrocatalytic Oxidation of M ethanol on Promoted Pt/C Catalysts

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