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Selective Electrochemical H_2O_2 Production through Two-Electron Oxygen Electrochemistry

机译：通过双电子氧电化学选择性生产H_2O_2

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摘要

Direct electrochemical production of hydrogen peroxide (H2O2) through two-electron oxygen electrochemistry, for example, the oxygen reduction in fuel cells or water oxidation in water electrolyzers, could provide an attractive alternative to locally produce this chemical on demand. The efficiency of these processes depends greatly on the availability of cost-effective catalysts with high selectivity, activity, and stability. In recent years, various novel nanostructured materials have been reported to selectively produce H2O2. Through combined experimental and theoretical approaches, underlying mechanisms in the electrochemical synthesis of H2O2 via oxygen electrochemistry have been unveiled. Considering the remarkable progress in this area, the authors summarize recent developments regarding the direct production of H2O2 through two-electron electrochemical oxygen reactions. The fundamental aspects of electrochemical oxygen reactions are first introduced. Various types of catalysts that can effectively produce H2O2 via two-electron oxygen electrochemistry are then presented. In parallel, the unique structure-, component-, and composition-dependent electrochemical performance together with the underlying catalytic mechanisms are discussed. Finally, a brief conclusion about the recent progress achieved in electrochemical generation of H2O2 and an outlook on future research challenges are given.
机译：通过双电子氧电化学直接电化学生产过氧化氢（H2O2），例如燃料电池中的氧还原或水电解槽中的水氧化，可能会成为一种有吸引力的替代方案，可以按需本地生产这种化学物质。这些方法的效率在很大程度上取决于具有高选择性，活性和稳定性的高性价比催化剂的可用性。近年来，已经报道了各种新颖的纳米结构材料来选择性地产生H 2 O 2。通过实验和理论相结合的方法，揭示了通过氧电化学电化学合成H2O2的潜在机理。考虑到该领域的显着进展，作者总结了有关通过双电子电化学氧反应直接生产H2O2的最新进展。首先介绍了电化学氧反应的基本方面。然后介绍了可以通过二电子氧电化学有效产生H2O2的各种类型的催化剂。同时，还讨论了独特的结构，组分和组成相关的电化学性能以及潜在的催化机理。最后，简要总结了H2O2电化学生成的最新进展以及对未来研究挑战的展望。

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  • 来源
    《Advanced energy materials》 |2018年第31期|1801909.1-1801909.25|共25页
  • 作者

    Jiang Yuanyuan; Ni Pengjuan; Chen Chuanxia; Lu Yizhong; Yang Ping; Kong Biao; Fisher Adrian; Wang Xin;

  • 作者单位

    Univ Jinan, Sch Mat Sci & Engn, Jinan 250022, Shandong, Peoples R China;

    Univ Jinan, Sch Mat Sci & Engn, Jinan 250022, Shandong, Peoples R China;

    Univ Jinan, Sch Mat Sci & Engn, Jinan 250022, Shandong, Peoples R China;

    Univ Jinan, Sch Mat Sci & Engn, Jinan 250022, Shandong, Peoples R China;

    Univ Jinan, Sch Mat Sci & Engn, Jinan 250022, Shandong, Peoples R China;

    Fudan Univ, Shanghai Key Lab Mol Catalysis & Innovat Mat, Shanghai 200433, Peoples R China;

    Univ Cambridge, Dept Chem Engn & Biotechnol, New Museums Site,Pembroke St, Cambridge CB2 3RA, England;

    Nanyang Technol Univ, Sch Chem & Biomed Engn, 62 Nanyang Dr, Singapore 637459, Singapore;

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

    electrochemical; H2O2 production; oxygen electrochemistry; selective; two-electron;

    机译：电化学;H2O2的产生;氧电化学;选择性;双电子;

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