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INVESTIGATION OF THE ELECTROCHEMICAL BEHAVIOR OF HEAT-TREATED CARBON BLACKS AND Pt/C CATALYSTS

Author

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  • C. D. HUANG

    (Department of Physics, National University of Singapore, Kent Ridge, Singapore 119260, Singapore)

  • Z. T. XIONG

    (Department of Physics, National University of Singapore, Kent Ridge, Singapore 119260, Singapore)

  • J. Y. LIN

    (Department of Physics, National University of Singapore, Kent Ridge, Singapore 119260, Singapore)

  • K. L. TAN

    (Department of Physics, National University of Singapore, Kent Ridge, Singapore 119260, Singapore)

Abstract

In this paper we report the electrochemical behavior of heat-treated carbon blacks and Pt/C catalysts. Cyclic voltammetry indicates that the heat-treated carbon black as catalyst support does not improve the Pt/C catalyst's activity for methanol oxidation. An XPS study of a Pt-loaded carbon black indicates that the amounts of oxidized platinum and oxygen-functional groups on catalysts are decreased when the platinum particles are deposited on the heat-treated carbon surface. These changes in the surface and crystalline structural properties of carbon materials lead to the catalytic activity change in methanol electro-oxidation.

Suggested Citation

  • C. D. Huang & Z. T. Xiong & J. Y. Lin & K. L. Tan, 2002. "INVESTIGATION OF THE ELECTROCHEMICAL BEHAVIOR OF HEAT-TREATED CARBON BLACKS AND Pt/C CATALYSTS," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 9(03n04), pages 1443-1452.
    • Handle: RePEc:wsi:srlxxx:v:09:y:2002:i:03n04:n:s0218625x02004001
    DOI: 10.1142/S0218625X02004001
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    Cited by:

    1. Chung-Ming Kuan, 2013. "Markov switching model (in Russian)," Quantile, Quantile, issue 11, pages 13-40, December.

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