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Fast site-to-site electron transfer of high-entropy alloy nanocatalyst driving redox electrocatalysis

Author

Listed:
  • Hongdong Li

    (Qingdao University of Science and Technology)

  • Yi Han

    (Qingdao University of Science and Technology)

  • Huan Zhao

    (Qingdao University of Science and Technology)

  • Wenjing Qi

    (Chongqing Normal University)

  • Dan Zhang

    (Qingdao University of Science and Technology
    Qingdao University of Science and Technology)

  • Yaodong Yu

    (Qingdao University of Science and Technology)

  • Wenwen Cai

    (Qingdao University of Science and Technology)

  • Shaoxiang Li

    (Qingdao University of Science and Technology)

  • Jianping Lai

    (Qingdao University of Science and Technology)

  • Bolong Huang

    (The Hong Kong Polytechnic University, Hung Hom)

  • Lei Wang

    (Qingdao University of Science and Technology
    Qingdao University of Science and Technology)

Abstract

Designing electrocatalysts with high-performance for both reduction and oxidation reactions faces severe challenges. Here, the uniform and ultrasmall (~3.4 nm) high-entropy alloys (HEAs) Pt18Ni26Fe15Co14Cu27 nanoparticles are synthesized by a simple low-temperature oil phase strategy at atmospheric pressure. The Pt18Ni26Fe15Co14Cu27/C catalyst exhibits excellent electrocatalytic performance for hydrogen evolution reaction (HER) and methanol oxidation reaction (MOR). The catalyst shows ultrasmall overpotential of 11 mV at the current density of 10 mA cm−2, excellent activity (10.96 A mg−1Pt at −0.07 V vs. reversible hydrogen electrode) and stability in the alkaline medium. Furthermore, it is also the efficient catalyst (15.04 A mg−1Pt) ever reported for MOR in alkaline solution. Periodic DFT calculations confirm the multi-active sites for both HER and MOR on the HEA surface as the key factor for both proton and intermediate transformation. Meanwhile, the construction of HEA surfaces supplies the fast site-to-site electron transfer for both reduction and oxidation processes.

Suggested Citation

  • Hongdong Li & Yi Han & Huan Zhao & Wenjing Qi & Dan Zhang & Yaodong Yu & Wenwen Cai & Shaoxiang Li & Jianping Lai & Bolong Huang & Lei Wang, 2020. "Fast site-to-site electron transfer of high-entropy alloy nanocatalyst driving redox electrocatalysis," Nature Communications, Nature, vol. 11(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-19277-9
    DOI: 10.1038/s41467-020-19277-9
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    Cited by:

    1. Lin He & Menggang Li & Longyu Qiu & Shuo Geng & Yequn Liu & Fenyang Tian & Mingchuan Luo & Hu Liu & Yongsheng Yu & Weiwei Yang & Shaojun Guo, 2024. "Single-atom Mo-tailored high-entropy-alloy ultrathin nanosheets with intrinsic tensile strain enhance electrocatalysis," Nature Communications, Nature, vol. 15(1), pages 1-11, December.
    2. Changhong Zhan & Yong Xu & Lingzheng Bu & Huaze Zhu & Yonggang Feng & Tang Yang & Ying Zhang & Zhiqing Yang & Bolong Huang & Qi Shao & Xiaoqing Huang, 2021. "Subnanometer high-entropy alloy nanowires enable remarkable hydrogen oxidation catalysis," Nature Communications, Nature, vol. 12(1), pages 1-8, December.
    3. Yunqing Kang & Ovidiu Cretu & Jun Kikkawa & Koji Kimoto & Hiroki Nara & Asep Sugih Nugraha & Hiroki Kawamoto & Miharu Eguchi & Ting Liao & Ziqi Sun & Toru Asahi & Yusuke Yamauchi, 2023. "Mesoporous multimetallic nanospheres with exposed highly entropic alloy sites," Nature Communications, Nature, vol. 14(1), pages 1-12, December.

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