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Electrosynthesis of high-entropy metallic glass nanoparticles for designer, multi-functional electrocatalysis

Author

Listed:
  • Matthew W. Glasscott

    (The University of North Carolina at Chapel Hill)

  • Andrew D. Pendergast

    (The University of North Carolina at Chapel Hill)

  • Sondrica Goines

    (The University of North Carolina at Chapel Hill)

  • Anthony R. Bishop

    (The University of North Carolina at Chapel Hill)

  • Andy T. Hoang

    (The University of North Carolina at Chapel Hill)

  • Christophe Renault

    (Ecole Polytechnique, CNRS, IP Paris)

  • Jeffrey E. Dick

    (The University of North Carolina at Chapel Hill
    The University of North Carolina at Chapel Hill)

Abstract

Creative approaches to the design of catalytic nanomaterials are necessary in achieving environmentally sustainable energy sources. Integrating dissimilar metals into a single nanoparticle (NP) offers a unique avenue for customizing catalytic activity and maximizing surface area. Alloys containing five or more equimolar components with a disordered, amorphous microstructure, referred to as High-Entropy Metallic Glasses (HEMGs), provide tunable catalytic performance based on the individual properties of incorporated metals. Here, we present a generalized strategy to electrosynthesize HEMG-NPs with up to eight equimolar components by confining multiple metal salt precursors to water nanodroplets emulsified in dichloroethane. Upon collision with an electrode, alloy NPs are electrodeposited into a disordered microstructure, where dissimilar metal atoms are proximally arranged. We also demonstrate precise control over metal stoichiometry by tuning the concentration of metal salt dissolved in the nanodroplet. The application of HEMG-NPs to energy conversion is highlighted with electrocatalytic water splitting on CoFeLaNiPt HEMG-NPs.

Suggested Citation

  • Matthew W. Glasscott & Andrew D. Pendergast & Sondrica Goines & Anthony R. Bishop & Andy T. Hoang & Christophe Renault & Jeffrey E. Dick, 2019. "Electrosynthesis of high-entropy metallic glass nanoparticles for designer, multi-functional electrocatalysis," Nature Communications, Nature, vol. 10(1), pages 1-8, December.
  • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-10303-z
    DOI: 10.1038/s41467-019-10303-z
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    Cited by:

    1. Xin Xia & Ziqing Zhou & Yinghui Shang & Yong Yang & Yunlong Zi, 2023. "Metallic glass-based triboelectric nanogenerators," Nature Communications, Nature, vol. 14(1), pages 1-12, December.
    2. Jiace Hao & Zechao Zhuang & Kecheng Cao & Guohua Gao & Chan Wang & Feili Lai & Shuanglong Lu & Piming Ma & Weifu Dong & Tianxi Liu & Mingliang Du & Han Zhu, 2022. "Unraveling the electronegativity-dominated intermediate adsorption on high-entropy alloy electrocatalysts," Nature Communications, Nature, vol. 13(1), pages 1-13, December.

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