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Citation: YAN Peng, XU Yingming, ZHAO Hui, HUO Lihua, GAO Shan. Compared Study of Catalytic Activity for Methanol Oxidation on Different Pt-WO₃/C Electrodes[J]. Chinese Journal of Applied Chemistry, ;2011, 28(12): 1415-1420. doi: 10.3724/SP.J.1095.2011.00697 shu

Compared Study of Catalytic Activity for Methanol Oxidation on Different Pt-WO₃/C Electrodes

YAN Peng ^a,b ,
XU Yingming ^a ,
ZHAO Hui ^a,, ,
HUO Lihua ^a ,
GAO Shan ^a

1.
a Laboratory of Functional Materials, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080;
2.
b Department of Materials Science and Chemistry, Heilongjiang Institute of Technology, Harbin

Corresponding author: ZHAO Hui,
Received Date: 24 November 2010
Available Online: 23 May 2011
Fund Project: 黑龙江省教育厅(11551337) (11551337)哈尔滨市青年基金(2011RFQXG011)资助项目 (2011RFQXG011)

Tungsten oxide-based nano-materials with two different crystal structures were prepared by hydrothermal method and characterized by X-ray diffraction(XRD) and electron probe micro analyzer(EPMA),respectively.The electrocatalytic activity for methanol oxidation on Pt-WO₃/C electrode was studied by cyclic voltammetry.The results indicate that the electrocatalytic activity of Pt-WO₃/C is much higher than that of Pt/C catalyst.For various amount of WO₃,the catalyst with 20% mass fraction of WO₃ has the best electrocatalytic activity.The electrocatalytic activity of the pyrochlore type tungsten oxide doped Pt/C electrode is higher than that of the tungsten bronze doped electrode,which is likely due to the strong attractions of OH_ads on the surface of pyrochlore type tungsten oxide.The current density of the pyrochlore type tungsten oxide doped Pt/C electrode for electro-oxidation of methanol is 87.2×10^-3 A/cm² in 0.5 mol/L CH₃OH+1 mol/L H₂SO₄ solution.
- methanol oxidation,
- fuel cell,
- Pt-tungsten oxide/C catalyst
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Compared Study of Catalytic Activity for Methanol Oxidation on Different Pt-WO3/C Electrodes

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Compared Study of Catalytic Activity for Methanol Oxidation on Different Pt-WO₃/C Electrodes