Performance of Methanol Oxidation on Pt-M(M=Ni, Fe, Mo) Electro-Catalysts in Alkaline Media

Chem. J. Chinese Universities

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Performance of Methanol Oxidation on Pt-M(M=Ni, Fe, Mo) Electro-Catalysts in Alkaline Media

LIU Shi-Bin, LIU Yong, SUN Yan-Ping*, ZHANG Zhong-Lin, HAO Xiao-Gang, LI Yi-Bing

Department of Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, China

Received:2006-06-27 Revised:1900-01-01 Online:2007-05-10 Published:2007-05-10
Contact: SUN Yan-Ping

Abstract

Abstract: Carbon supported Pt-M(M=Ni, Fe, Mo) catalysts were prepared with colloidal method. The catalysts were characterized by TEM and XRD, and the activities of different catalysts were measured via the cyclic voltammetry under an alkaline condition for methanol electro-catalytic oxidation. The results show that Pt-based alloys are distributed homogeneously on carbon, the particle sizes are about 2—4 nm, and the activities order of Pt-based alloys is Pt₇₅Ni₂₅/C>Pt₇₅Fe₂₅/C>Pt₅₀Mo₅₀/C. The doping of Ni in the nano-particles of Pt was able to markedly enhance the catalytic activities of Pt/C, and the peak current of Pt₇₅Ni₂₅/C catalyst reached 726.9 mA/mg in 1.0 mol/L NaOH+1.0 mol/L CH₃OH solution in this experiment.

Key words: Alkaline media, Pt-based alloy catalysts, Methanol, Electro-oxidation

CLC Number:

O646

TrendMD:

LIU Shi-Bin, LIU Yong, SUN Yan-Ping*, ZHANG Zhong-Lin, HAO Xiao-Gang, LI Yi-Bing. Performance of Methanol Oxidation on Pt-M(M=Ni, Fe, Mo) Electro-Catalysts in Alkaline Media[J]. Chem. J. Chinese Universities, doi: .

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Performance of Methanol Oxidation on Pt-M(M=Ni, Fe, Mo) Electro-Catalysts in Alkaline Media

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