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Mesoporous Pt@Pt-skin Pt3Ni core-shell framework nanowire electrocatalyst for efficient oxygen reduction

Author

Listed:
  • Hui Jin

    (Wuhan University of Technology)

  • Zhewei Xu

    (Wuhan University of Technology)

  • Zhi-Yi Hu

    (Wuhan University of Technology)

  • Zhiwen Yin

    (Wuhan University of Technology)

  • Zhao Wang

    (Wuhan University of Technology)

  • Zhao Deng

    (Wuhan University of Technology)

  • Ping Wei

    (Wuhan University of Technology)

  • Shihao Feng

    (Wuhan University of Technology)

  • Shunhong Dong

    (Wuhan University of Technology)

  • Jinfeng Liu

    (Wuhan University of Technology)

  • Sicheng Luo

    (Wuhan University of Technology)

  • Zhaodong Qiu

    (Wuhan University of Technology)

  • Liang Zhou

    (Wuhan University of Technology)

  • Liqiang Mai

    (Wuhan University of Technology)

  • Bao-Lian Su

    (Wuhan University of Technology
    University of Namur)

  • Dongyuan Zhao

    (Fudan University)

  • Yong Liu

    (Wuhan University of Technology)

Abstract

The design of Pt-based nanoarchitectures with controllable compositions and morphologies is necessary to enhance their electrocatalytic activity. Herein, we report a rational design and synthesis of anisotropic mesoporous Pt@Pt-skin Pt3Ni core-shell framework nanowires for high-efficient electrocatalysis. The catalyst has a uniform core-shell structure with an ultrathin atomic-jagged Pt nanowire core and a mesoporous Pt-skin Pt3Ni framework shell, possessing high electrocatalytic activity, stability and Pt utilisation efficiency. For the oxygen reduction reaction, the anisotropic mesoporous Pt@Pt-skin Pt3Ni core-shell framework nanowires demonstrated exceptional mass and specific activities of 6.69 A/mgpt and 8.42 mA/cm2 (at 0.9 V versus reversible hydrogen electrode), and the catalyst exhibited high stability with negligible activity decay after 50,000 cycles. The mesoporous Pt@Pt-skin Pt3Ni core-shell framework nanowire configuration combines the advantages of three-dimensional open mesopore molecular accessibility and compressive Pt-skin surface strains, which results in more catalytically active sites and weakened chemisorption of oxygenated species, thus boosting its catalytic activity and stability towards electrocatalysis.

Suggested Citation

  • Hui Jin & Zhewei Xu & Zhi-Yi Hu & Zhiwen Yin & Zhao Wang & Zhao Deng & Ping Wei & Shihao Feng & Shunhong Dong & Jinfeng Liu & Sicheng Luo & Zhaodong Qiu & Liang Zhou & Liqiang Mai & Bao-Lian Su & Dong, 2023. "Mesoporous Pt@Pt-skin Pt3Ni core-shell framework nanowire electrocatalyst for efficient oxygen reduction," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-37268-4
    DOI: 10.1038/s41467-023-37268-4
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    References listed on IDEAS

    as
    1. Zhi-Peng Wu & Dominic T. Caracciolo & Yazan Maswadeh & Jianguo Wen & Zhijie Kong & Shiyao Shan & Jorge A. Vargas & Shan Yan & Emma Hopkins & Keonwoo Park & Anju Sharma & Yang Ren & Valeri Petkov & Lic, 2021. "Alloying–realloying enabled high durability for Pt–Pd-3d-transition metal nanoparticle fuel cell catalysts," Nature Communications, Nature, vol. 12(1), pages 1-14, December.
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