Mixed-PtPd-Shell PtPdCu Nanoparticle Nanotubes Templated from Copper Nanowires as Efficient and Highly Durable Electrocatalysts

Authors

  • Hui-Hui Li,

    1. Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical, Sciences at Microscale, Department of Chemistry, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230026, PR China
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  • Chun-Hua Cui,

    1. Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical, Sciences at Microscale, Department of Chemistry, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230026, PR China
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  • Shuo Zhao,

    1. Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical, Sciences at Microscale, Department of Chemistry, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230026, PR China
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  • Hong-Bin Yao,

    1. Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical, Sciences at Microscale, Department of Chemistry, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230026, PR China
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  • Min-Rui Gao,

    1. Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical, Sciences at Microscale, Department of Chemistry, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230026, PR China
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  • Feng-Jia Fan,

    1. Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical, Sciences at Microscale, Department of Chemistry, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230026, PR China
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  • Shu-Hong Yu

    Corresponding author
    1. Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical, Sciences at Microscale, Department of Chemistry, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230026, PR China
    • Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical, Sciences at Microscale, Department of Chemistry, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230026, PR China.
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Abstract

original image

The controlled synthesis of mixed-PtPd-shell PtPdCu-alloy nanoparticle nanotubes (ANNTs) is demonstrated by galvanic displacement with partially sacrificial copper-nanowire templates, and following the electrochemical leaching of the non-noble metal Cu in the acidic electrolyte. These core-shell catalysts significantly reduce the amount of expensive Pt and highly improve the electrocatalytic activity and durability through their modified electronic structure, atomic distribution, and 1D structure property.

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