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Citation: YAN Peng, ZHAO Hui, HUO Li-Hua, GAO Shan, ZHAO Jing-Gui. Catalytic Activity for Methanol Oxidation of Pt-CeO₂/C Catalyst Electrode[J]. Chinese Journal of Applied Chemistry, ;2007, 24(12): 1378-1382. shu

Catalytic Activity for Methanol Oxidation of Pt-CeO₂/C Catalyst Electrode

1.
Laboratory of Functional Materials, School of Chemistry and Materials Science, Heilongjiang Univer,, ity, Harbin 150080

Corresponding author: ZHAO Hui,
Received Date: 11 January 2007
Available Online: 31 May 2007
Fund Project: 黑龙江省科技攻关项目(GC04A207) (GC04A207)

Highly dispersed Pt-CeO₂/C electrode was prepared by mixing ceria sol with Pt/C powder,and electro-oxidation of methanol was studied in sulfuric acid electrolyte at room temperature on Pt-CeO₂/C catalyst.It was found that the Pt-CeO₂/C catalyst exhibited a higher catalytic activity towards methanol electro-oxidation than Pt /C catalyst.Transmission electron microscopy(TEM) and X-ray diffraction(XRD) analyses indicated the formation of homogenous mixtures of ceria and Pt nanometer particles with size of around 3~4 nm on carbon support.Electro-oxidation of methanol was studied on the Pt-CeO₂/C electrodes employing various amounts of CeO₂ in sulfuric acid electrolyte at room temperature.The electrochemical characterization by cyclic voltammetry(CV) and chronoamperometry demonstrated that the catalytic activity of the Pt-CeO₂/C was highest when the mass ratio of Pt:CeO₂ was 1:1,where the current density for electro-oxidation of methanol was 0.112 A/cm².
- nano ceria,
- methanol,
- fuel cell,
- Pt/C catalyst
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Catalytic Activity for Methanol Oxidation of Pt-CeO2/C Catalyst Electrode

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通讯作者: 陈斌, bchen63@163.com

Catalytic Activity for Methanol Oxidation of Pt-CeO₂/C Catalyst Electrode