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Underpotential Deposition-Induced Synthesis of Composition-Tunable Pt[BOND]Cu Nanocrystals and Their Catalytic Properties

Authors

  • Dr. Yaqi Jiang,

    Corresponding author
    1. State Key Laboratory of Physical Chemistry of Solid Surfaces and the Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005 (P.R. China), Fax: (+86) 592-218-3047
    • State Key Laboratory of Physical Chemistry of Solid Surfaces and the Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005 (P.R. China), Fax: (+86) 592-218-3047
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  • Yanyan Jia,

    1. State Key Laboratory of Physical Chemistry of Solid Surfaces and the Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005 (P.R. China), Fax: (+86) 592-218-3047
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  • Jiawei Zhang,

    1. State Key Laboratory of Physical Chemistry of Solid Surfaces and the Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005 (P.R. China), Fax: (+86) 592-218-3047
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  • Lei Zhang,

    1. State Key Laboratory of Physical Chemistry of Solid Surfaces and the Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005 (P.R. China), Fax: (+86) 592-218-3047
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  • Huang Huang,

    1. State Key Laboratory of Physical Chemistry of Solid Surfaces and the Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005 (P.R. China), Fax: (+86) 592-218-3047
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  • Prof. Dr. Zhaoxiong Xie,

    Corresponding author
    1. State Key Laboratory of Physical Chemistry of Solid Surfaces and the Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005 (P.R. China), Fax: (+86) 592-218-3047
    • State Key Laboratory of Physical Chemistry of Solid Surfaces and the Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005 (P.R. China), Fax: (+86) 592-218-3047
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  • Prof. Dr. Lansun Zheng

    1. State Key Laboratory of Physical Chemistry of Solid Surfaces and the Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005 (P.R. China), Fax: (+86) 592-218-3047
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Abstract

Pt[BOND]Cu alloy octahedral nanocrystals (NCs) have been synthesized successfully by using N,N-dimethylformamide as both the solvent and the reducing agent in the presence of cetyltrimethylammonium chloride. Cu underpotential deposition (UPD) is found to play a key role in the formation of the Pt[BOND]Cu alloy NCs. The composition in the Pt[BOND]Cu alloy can be tuned by adjusting the ratio of metal precursors in solution. However, the Cu content in the Pt[BOND]Cu alloy NCs cannot exceed 50 %. Due to the fact that Cu precursor cannot be reduced to metallic copper and the Cu content cannot exceed 50 %, we achieved the formation of the Pt[BOND]Cu alloy by using Cu UPD on the Pt surface. In addition, the catalytic activities of Pt[BOND]Cu alloy NCs with different composition were investigated in electrocatalytic oxidation of formic acid. The results reveal that the catalytic performance is strongly dependent on Pt[BOND]Cu alloy composition. The sample of Pt50Cu50 exhibits excellent activity in electrocatalytic oxidation of formic acid.

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