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Designing High-Valence Metal Sites for Electrochemical Water Splitting

机译：设计高价金属位点，用于电化学水分裂

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摘要

Electrochemical water splitting is a critical energy conversion process for producing clean and sustainable hydrogen; this process relies on low-cost, highly active, and durable oxygen evolution reaction/hydrogen evolution reaction electrocatalysts. Metal cations (including transition metal and noble metal cations), particularly high-valence metal cations that show high catalytic activity and can serve as the main active sites in electrochemical processes, have received special attention for developing advanced electrocatalysts. In this review, heterogenous electrocatalyst design strategies based on high-valence metal sites are presented, and associated materials designed for water splitting are summarized. In the discussion, emphasis is given to high-valence metal sites combined with the modulation of the phase/electronic/defect structure and strategies of performance improvement. Specifically, the importance of using advanced in situ and operando techniques to track the real high-valence metal-based active sites during the electrochemical process is highlighted. Remaining challenges and future research directions are also proposed. It is expected that this comprehensive discussion of electrocatalysts containing high-valence metal sites can be instructive to further explore advanced electrocatalysts for water splitting and other energy-related reactions.
机译：电化学水分解是生产清洁和可持续氢的关键能量转换方法;该方法依赖于低成本，高活性和耐用的氧气进化反应/氢气进化反应电催化剂。金属阳离子（包括过渡金属和贵金属金属阳离子），特别是具有高催化活性的高价金属阳离子，并且可以作为电化学过程中的主要活性位点，对开发先进的电催化剂进行了特别关注。在本综述中，提出了基于高价金属位点的异质电催化剂设计策略，并且总结了用于水分裂的相关材料。在讨论中，重点给予高价金属位点，结合了相位/电子/缺陷结构的调制和性能改善的策略。具体地，突出了在电化学过程中跟踪实际高价金属基有效位的原位和操作扬说技术的重要性。还提出了剩余的挑战和未来的研究方向。预计对含有高价金属位点的电催化剂的这种综合讨论可以是有助于进一步探索水分裂和其他能量相关反应的先进电催化剂。

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  • 来源
    《Advanced Functional Materials》 |2021年第16期|2009779.1-2009779.44|共44页
  • 作者

    Sun Hainan; Xu Xiaomin; Song Yufei; Zhou Wei; Shao Zongping;

  • 作者单位

    Nanjing Tech Univ Coll Chem Engn State Key Lab Mat Oriented Chem Engn Nanjing 211816 Peoples R China|Korea Adv Inst Sci & Technol Dept Mat Sci & Engn Daejeon 34141 South Korea;

    Curtin Univ Dept Chem Engn Perth WA 6845 Australia;

    Nanjing Tech Univ Coll Chem Engn State Key Lab Mat Oriented Chem Engn Nanjing 211816 Peoples R China;

    Nanjing Tech Univ Coll Chem Engn State Key Lab Mat Oriented Chem Engn Nanjing 211816 Peoples R China;

    Nanjing Tech Univ Coll Chem Engn State Key Lab Mat Oriented Chem Engn Nanjing 211816 Peoples R China|Curtin Univ Dept Chem Engn Perth WA 6845 Australia;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    high#8208; valence metals; hydrogen evolution reaction; noble metals; oxygen evolution reaction; transition metals;

    机译：高＆＃8208;价金属;氢气进化反应;贵金属;氧气进化反应;过渡金属;

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