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Chem. J. Chinese Universities ›› 2011, Vol. 32 ›› Issue (12): 2856.

• Articles • Previous Articles     Next Articles

Electrocatalytic Performance of Carbon Supported Pt-Sn Catalyst Prepared with Direct Thermo-decomposition Method for Ethanol Oxidation

MA Juan1, SUN Han-Jun2, ZHAO Hong1, TANG Ya-Wen2, LU Tian-Hong2, ZHENG Jun-Wei1*   

  1. 1. Institute of Chemical Power Sources, Soochow  University, Suzhou 215006, China;
    2. Jiangsu Key Laboratory of New Power Batteries, Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Material Science, Nanjing Normal University, Nanjing 210097, China
  • Received:2011-02-28 Revised:2011-04-20 Online:2011-12-10 Published:2011-11-25
  • Contact: ZHENG Jun-Wei E-mail:jwzheng@suda.edu.cn
  • Supported by:

    国家自然科学基金(批准号: 20873065, 21073094)和江苏高校优势学科建设工程项目资助.

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Abstract: The Pt-Sn/C catalyst was synthesized with the direct Thermo-decomposition method using Pt(NO3)2 and SnO as the precusors. The Pt-Sn/C catalyst was characteristed with X-ray diffraction(XRD), transmission electron microscopy(TEM) and X-photoelectron spectroscopy(XPS). The electrocatalytic performance of the Pt-Sn/C catalyst was investigated with the cyclic voltammetry.  It was found that the Pt-Sn particles in the Pt-Sn/C catalyst prepared with this method possesses the shell-core structure with the Pt-Sn alloy particles as the shell and the SnOx particles as the core. The electrocatalytic performance of the Pt-Sn/C catalyst for the ethanol oxidation is better than that of the Pt/C catalyst. This preparetion method does not indroduce Cl-. Thus, the prepared catalyst needn't wash and does not induce the environmental pollution.  In addition, this preparation method is suitable for the production with the large scale.  Therefore, this preparation method is suitable for the practical application.

Key words: Stannous oxide, Shell-core structure, Carbon supported Pt-Sn catalyst, Direct ethanol fuel cell

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