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Electrochemical Energy Reviews ›› 2022, Vol. 5 ›› Issue (3): 7-.doi: 10.1007/s41918-022-00163-5

• • 上一篇    下一篇

Electrocatalytic Oxygen Reduction to Produce Hydrogen Peroxide: Rational Design from Single-Atom Catalysts to Devices

Yueyu Tong1,2, Liqun Wang3, Feng Hou1, Shi Xue Dou2, Ji Liang1   

  1. 1. Key Laboratory for Advanced Ceramics and Machining Technology of Ministry of Education, School of Materials Science and Engineering, Tianjin University, Tianjin, China;
    2. Institute for Superconducting and Electronic Materials, Australian Institute of Innovative Materials, University of Wollongong, Innovation Campus, Squires Way, North Wollongong, NSW 2500, Australia;
    3. Applied Physics Department, College of Physics and Materials Science, Tianjin Normal University, Tianjin, China
  • 收稿日期:2021-02-26 修回日期:2021-05-27 出版日期:2022-09-20 发布日期:2022-10-25
  • 通讯作者: Ji Liang,E-mail:liangji@tju.edu.cn E-mail:liangji@tju.edu.cn
  • 基金资助:
    This work was supported by the Natural Science Foundation of China (Nos. 22179093 and 21905202), the Australian Research Council (ARC) through the Discovery Project (No. DP200100365), the Discovery Early Career Researcher Award (DECRA, No. DE170100871) program, and the Crosswise Tasks of Tianjin Normal University (No. 53H21016).

Electrocatalytic Oxygen Reduction to Produce Hydrogen Peroxide: Rational Design from Single-Atom Catalysts to Devices

Yueyu Tong1,2, Liqun Wang3, Feng Hou1, Shi Xue Dou2, Ji Liang1   

  1. 1. Key Laboratory for Advanced Ceramics and Machining Technology of Ministry of Education, School of Materials Science and Engineering, Tianjin University, Tianjin, China;
    2. Institute for Superconducting and Electronic Materials, Australian Institute of Innovative Materials, University of Wollongong, Innovation Campus, Squires Way, North Wollongong, NSW 2500, Australia;
    3. Applied Physics Department, College of Physics and Materials Science, Tianjin Normal University, Tianjin, China
  • Received:2021-02-26 Revised:2021-05-27 Online:2022-09-20 Published:2022-10-25
  • Contact: Ji Liang,E-mail:liangji@tju.edu.cn E-mail:liangji@tju.edu.cn
  • Supported by:
    This work was supported by the Natural Science Foundation of China (Nos. 22179093 and 21905202), the Australian Research Council (ARC) through the Discovery Project (No. DP200100365), the Discovery Early Career Researcher Award (DECRA, No. DE170100871) program, and the Crosswise Tasks of Tianjin Normal University (No. 53H21016).

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摘要： Electrocatalytic production of hydrogen peroxide (H2O2) via the 2e- transfer route of the oxygen reduction reaction (ORR) offers a promising alternative to the energy-intensive anthraquinone process, which dominates current industrial-scale production of H2O2. The availability of cost-effective electrocatalysts exhibiting high activity, selectivity, and stability is imperative for the practical deployment of this process. Single-atom catalysts (SACs) featuring the characteristics of both homogeneous and heterogeneous catalysts are particularly well suited for H2O2 synthesis and thus, have been intensively investigated in the last few years. Herein, we present an in-depth review of the current trends for designing SACs for H2O2 production via the 2e- ORR route. We start from the electronic and geometric structures of SACs. Then, strategies for regulating these isolated metal sites and their coordination environments are presented in detail, since these fundamentally determine electrocatalytic performance. Subsequently, correlations between electronic structures and electrocatalytic performance of the materials are discussed. Furthermore, the factors that potentially impact the performance of SACs in H2O2 production are summarized. Finally, the challenges and opportunities for rational design of more targeted H2O2-producing SACs are highlighted. We hope this review will present the latest developments in this area and shed light on the design of advanced materials for electrochemical energy conversion.

关键词: Single-atom catalyst design, Electrocatalytic H2O2 production, Oxygen reduction reaction, Two-electron process

Abstract: Electrocatalytic production of hydrogen peroxide (H2O2) via the 2e- transfer route of the oxygen reduction reaction (ORR) offers a promising alternative to the energy-intensive anthraquinone process, which dominates current industrial-scale production of H2O2. The availability of cost-effective electrocatalysts exhibiting high activity, selectivity, and stability is imperative for the practical deployment of this process. Single-atom catalysts (SACs) featuring the characteristics of both homogeneous and heterogeneous catalysts are particularly well suited for H2O2 synthesis and thus, have been intensively investigated in the last few years. Herein, we present an in-depth review of the current trends for designing SACs for H2O2 production via the 2e- ORR route. We start from the electronic and geometric structures of SACs. Then, strategies for regulating these isolated metal sites and their coordination environments are presented in detail, since these fundamentally determine electrocatalytic performance. Subsequently, correlations between electronic structures and electrocatalytic performance of the materials are discussed. Furthermore, the factors that potentially impact the performance of SACs in H2O2 production are summarized. Finally, the challenges and opportunities for rational design of more targeted H2O2-producing SACs are highlighted. We hope this review will present the latest developments in this area and shed light on the design of advanced materials for electrochemical energy conversion.

Key words: Single-atom catalyst design, Electrocatalytic H2O2 production, Oxygen reduction reaction, Two-electron process

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