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Non-Platinum Group Metal Electrocatalysts toward Efficient Hydrogen Oxidation Reaction

机译：非铂族金属电气催化剂朝向有效的氢氧化反应

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摘要

Developing non-platinum group metal (non-PGM) electrocatalysts for the hydrogen oxidation reaction (HOR) represents the efforts towards the more economical use of hydrogen fuel cells and hydrogen energy, which has attracted tremendous attention recently. However, non-PGM electrocatalysts for the HOR are still in their early development stages as compared with the significant advances in those for the oxygen reduction reaction and hydrogen evolution reaction. Herein, this paper summarizes the recent progresses and highlights the key challenges for the rational design of non-PGM electrocatalysts, aiming to promote the development of non-PGM HOR electrocatalysts. Fundamental understandings of the HOR mechanism are firstly reviewed, where theoretical interpretations on the low HOR kinetics in alkaline media, including the hydrogen binding energy theory, the bifunctional mechanism, and the water molecule reorganization, are particularly discussed. Subsequently, progresses of typical non-PGM HOR electrocatalysts in acid and alkaline media are summarized separately. For the HOR under alkaline conditions, the superiorities and challenges of Ni-based catalysts are discussed with a particular focus as they are the most promising non-PGM electrocatalysts. Finally, this paper highlights the challenges and provide perspectives on the future development directions of non-PGM HOR electrocatalysts.
机译：用于氢氧化反应（HOR）的非铂族金属（非PGM）电催化剂代表氢燃料电池和氢能更加经济地使用的努力，这最近引起了巨大的关注。然而，与氧还原反应和氢化反应的显着进展相比，HOR的非PGM电催化剂仍处于早期发展阶段。在此，本文总结了最近的进展，并突出了非PGM电催化剂理性设计的关键挑战，旨在促进非PGM Hor电催化剂的发展。首先审查了HOR机制的基本谅解，其中尤其讨论了碱性介质中低HOR动力学的理论解释，包括氢结合能源理论，双功能机制和水分子重组。随后，分别总结了酸和碱性介质中典型的非PGM Hor电催化剂的进展。对于碱性条件下的HOR，用特定的焦点讨论了Ni基催化剂的优越性和挑战，因为它们是最有前途的非PGM电催化剂。最后，本文突出了挑战，并提供了非PGM HOR电催化剂未来发展方向的观点。

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  • 来源
    《Advanced Functional Materials》 |2021年第20期|2010633.1-2010633.12|共12页
  • 作者

    Zhao Guoqiang; Chen Jian; Sun Wenping; Pan Hongge;

  • 作者单位

    Zhejiang Univ State Key Lab Clean Energy Utilizat Sch Mat Sci & Engn Hangzhou 310027 Peoples R China|Univ Wollongong Australian Inst Innovat Mat Inst Superconducting & Elect Mat Wollongong NSW 2522 Australia;

    Xian Technol Univ Inst Sci & Technol New Energy Xian 710021 Peoples R China;

    Zhejiang Univ State Key Lab Clean Energy Utilizat Sch Mat Sci & Engn Hangzhou 310027 Peoples R China;

    Zhejiang Univ State Key Lab Clean Energy Utilizat Sch Mat Sci & Engn Hangzhou 310027 Peoples R China|Xian Technol Univ Inst Sci & Technol New Energy Xian 710021 Peoples R China;

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

    electrocatalysts; fuel cells; hydrogen oxidation reaction; non#8208; platinum group metals;

    机译：电催化剂;燃料电池;氢氧化反应;非＆＃8208;铂族金属;

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