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Phosphate-Doped Carbon Black as Pt Catalyst Support: Co-catalytic Functionality for Dimethyl Ether and Methanol Electro-oxidation

Authors

  • Min Yin,

    1. Section of Proton Conductors, Department of Energy Conversion and Storage, Kemitorvet 207, Technical University of Denmark, 2800 Lyngby (Denmark)
    2. Laboratory of Advanced Power Sources, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022 (P.R. China)
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  • Dr. Yunjie Huang,

    1. Section of Proton Conductors, Department of Energy Conversion and Storage, Kemitorvet 207, Technical University of Denmark, 2800 Lyngby (Denmark)
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  • Prof. Qingfeng Li,

    Corresponding author
    1. Section of Proton Conductors, Department of Energy Conversion and Storage, Kemitorvet 207, Technical University of Denmark, 2800 Lyngby (Denmark)
    • Qingfeng Li, Section of Proton Conductors, Department of Energy Conversion and Storage, Kemitorvet 207, Technical University of Denmark, 2800 Lyngby (Denmark)

      Wei Xing, Laboratory of Advanced Power Sources, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022 (P.R. China)

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  • Prof. Jens Oluf Jensen,

    1. Section of Proton Conductors, Department of Energy Conversion and Storage, Kemitorvet 207, Technical University of Denmark, 2800 Lyngby (Denmark)
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  • Dr. Lars N. Cleemann,

    1. Section of Proton Conductors, Department of Energy Conversion and Storage, Kemitorvet 207, Technical University of Denmark, 2800 Lyngby (Denmark)
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  • Dr. Wei Zhang,

    1. Section of Imaging and Structural Analysis, Department of Energy Conversion and Storage, Risø campus, Frederiksborgvej 399, Technical University of Denmark, 4000 Roskilde (Denmark)
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  • Prof. Niels J. Bjerrum,

    1. Section of Proton Conductors, Department of Energy Conversion and Storage, Kemitorvet 207, Technical University of Denmark, 2800 Lyngby (Denmark)
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  • Prof. Wei Xing

    Corresponding author
    1. Laboratory of Advanced Power Sources, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022 (P.R. China)
    • Qingfeng Li, Section of Proton Conductors, Department of Energy Conversion and Storage, Kemitorvet 207, Technical University of Denmark, 2800 Lyngby (Denmark)

      Wei Xing, Laboratory of Advanced Power Sources, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022 (P.R. China)

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Abstract

Niobium-phosphate-doped (NbP-doped) carbon blacks were prepared as the composite catalyst support for Pt nanoparticles. Functionalities of the composite include intrinsic proton conductivity, surface acidity, and interfacial synergistic interactions with methanol and dimethyl ether (DME). The supported Pt catalysts show significant improvement in catalytic activity towards the direct oxidation of methanol and DME, attributable to the enhanced adsorption and dehydrogenation of methanol and DME, as well as the presence of activated OH species in the catalysts. The latter is demonstrated to facilitate the removal of CO intermediates formed during the oxidation reactions.

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