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Recent Progress of Electrochemical Production of Hydrogen Peroxide by Two-Electron Oxygen Reduction Reaction
Advanced Science ( IF 14.3 ) Pub Date : 2021-05-27 , DOI: 10.1002/advs.202100076 Nan Wang 1, 2, 3 , Shaobo Ma 4 , Pengjian Zuo 4 , Jizhou Duan 1, 2, 3 , Baorong Hou 1, 2, 3
Advanced Science ( IF 14.3 ) Pub Date : 2021-05-27 , DOI: 10.1002/advs.202100076 Nan Wang 1, 2, 3 , Shaobo Ma 4 , Pengjian Zuo 4 , Jizhou Duan 1, 2, 3 , Baorong Hou 1, 2, 3
Affiliation
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Shifting electrochemical oxygen reduction reaction (ORR) via two-electron pathway becomes increasingly crucial as an alternative/green method for hydrogen peroxide (H2O2) generation. Here, the development of 2e− ORR catalysts in recent years is reviewed, in aspects of reaction mechanism exploration, types of high-performance catalysts, factors to influence catalytic performance, and potential applications of 2e− ORR. Based on the previous theoretical and experimental studies, the underlying 2e− ORR catalytic mechanism is firstly unveiled, in aspect of reaction pathway, thermodynamic free energy diagram, limiting potential, and volcano plots. Then, various types of efficient catalysts for producing H2O2 via 2e− ORR pathway are summarized. Additionally, the catalytic active sites and factors to influence catalysts’ performance, such as electronic structure, carbon defect, functional groups (O, N, B, S, F etc.), synergistic effect, and others (pH, pore structure, steric hindrance effect, etc.) are discussed. The H2O2 electrogeneration via 2e− ORR also has various potential applications in wastewater treatment, disinfection, organics degradation, and energy storage. Finally, potential future directions and prospects in 2e− ORR catalysts for electrochemically producing H2O2 are examined. These insights may help develop highly active/selective 2e− ORR catalysts and shape the potential application of this electrochemical H2O2 producing method.
中文翻译：
双电子氧还原电化学生产过氧化氢的研究进展
作为过氧化氢（H 2 O 2 ）生成的替代/绿色方法，通过双电子途径转移电化学氧还原反应（ORR）变得越来越重要。本文从反应机理探索、高性能催化剂的类型、影响催化性能的因素以及2e - ORR的潜在应用等方面综述了近年来2e - ORR催化剂的发展。在前期理论和实验研究的基础上，首次从反应路径、热力学自由能图、极限电势和火山图等方面揭示了2e - ORR催化机理。然后，总结了通过2e - ORR途径生产H 2 O 2的各种类型的有效催化剂。此外，催化活性位点和影响催化剂性能的因素，如电子结构、碳缺陷、官能团（O、N、B、S、F等）、协同效应等（pH、孔结构、空间结构）阻碍效应等）进行了讨论。通过2e − ORR 产生H 2 O 2电在废水处理、消毒、有机物降解和能源储存方面也具有各种潜在的应用。最后，研究了用于电化学生产 H 2 O 2的 2e - ORR 催化剂的潜在未来方向和前景。这些见解可能有助于开发高活性/选择性的 2e - ORR 催化剂，并塑造这种电化学 H 2 O 2生产方法的潜在应用。
更新日期：2021-08-04
中文翻译：
双电子氧还原电化学生产过氧化氢的研究进展
作为过氧化氢（H 2 O 2 ）生成的替代/绿色方法，通过双电子途径转移电化学氧还原反应（ORR）变得越来越重要。本文从反应机理探索、高性能催化剂的类型、影响催化性能的因素以及2e - ORR的潜在应用等方面综述了近年来2e - ORR催化剂的发展。在前期理论和实验研究的基础上，首次从反应路径、热力学自由能图、极限电势和火山图等方面揭示了2e - ORR催化机理。然后，总结了通过2e - ORR途径生产H 2 O 2的各种类型的有效催化剂。此外，催化活性位点和影响催化剂性能的因素，如电子结构、碳缺陷、官能团（O、N、B、S、F等）、协同效应等（pH、孔结构、空间结构）阻碍效应等）进行了讨论。通过2e − ORR 产生H 2 O 2电在废水处理、消毒、有机物降解和能源储存方面也具有各种潜在的应用。最后，研究了用于电化学生产 H 2 O 2的 2e - ORR 催化剂的潜在未来方向和前景。这些见解可能有助于开发高活性/选择性的 2e - ORR 催化剂，并塑造这种电化学 H 2 O 2生产方法的潜在应用。
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