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Efficient Oxygen Reduction Fuel Cell Electrocatalysis on Voltammetrically Dealloyed Pt–Cu–Co Nanoparticles

Authors

  • Ratndeep Srivastava,

    1. Department of Chemical and Biomolecular Engineering, University of Houston, 4800 Calhoun Road Eng Bldg 1 S226, Houston, TX, USA, Fax: (+1) 713-743-4323
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  • Prasanna Mani Dr.,

    1. Department of Chemical and Biomolecular Engineering, University of Houston, 4800 Calhoun Road Eng Bldg 1 S226, Houston, TX, USA, Fax: (+1) 713-743-4323
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  • Nathan Hahn,

    1. Department of Chemical and Biomolecular Engineering, University of Houston, 4800 Calhoun Road Eng Bldg 1 S226, Houston, TX, USA, Fax: (+1) 713-743-4323
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  • Peter Strasser Prof.

    1. Department of Chemical and Biomolecular Engineering, University of Houston, 4800 Calhoun Road Eng Bldg 1 S226, Houston, TX, USA, Fax: (+1) 713-743-4323
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  • This work was supported by the Department of Energy (Lab04-20) and by a TcSUH seed grant. Acknowledgement is also made to the Donors of the American Chemical Society Petroleum Research Fund for partial support of this research (grant no. 44165).

Abstract

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Raus mit dem Kupfer: Eine Klasse von ternären Pt-Cu-Co-Elektrokatalysatoren für die Reduktion von Sauerstoff in Polymerelektrolytmembran-Brennstoffzellen zeigt deutlich bessere Aktivitäten als derzeit gängige Pt-Katalysatoren. Die aktive Phase der Katalysators wird durch elektrochemisches Auflösen (Ablegieren; siehe Bild) von Cu-reichen Partikelvorstufen synthetisiert, wodurch Pt-angereicherte Kern-Schale-Partikel entstehen.

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