高等学校化学学报 ›› 2023, Vol. 44 ›› Issue (5): 20220775.doi: 10.7503/cjcu20220775

• 综合评述 • 上一篇    

碳基催化剂用于电催化氧还原生产H2O2的研究进展: 策略、 计算及实际应用

张小玉1, 曲干1, 薛冬萍1, 闫文付2(), 张佳楠1()   

  1. 1.郑州大学材料科学与工程学院, 郑州 450001
    2.吉林大学化学学院, 无机合成与制备化学国家重点实验室, 长春 130012
  • 收稿日期:2022-12-30 出版日期:2023-05-10 发布日期:2023-02-24
  • 通讯作者: 闫文付,张佳楠 E-mail:yanw@jlu.edu.cn;zjn@zzu.edu.cn
  • 基金资助:
    国家自然科学基金(21875221);河南省重点科技项目(222102240082);中国博士后科学基金(2022M722866);河南省研究生教育改革项目(2021SJGLX093Y);河南省国际人才合作项目(HNGD2022036)

Recent Process of Carbon-based Catalysts for the Production of H2O2 by Electrocatalytic Oxygen Reduction: Strategies, Calculation and Practical Applications

ZHANG Xiaoyu1, QU Gan1, XUE Dongping1, YAN Wenfu2(), ZHANG Jianan1()   

  1. 1.College of Materials Science and Engineering,Zhengzhou University,Zhengzhou 450001,China
    2.State Key Laboratory of Inorganic Synthesis and Preparative Chemistry,College of Chemistry,Jilin University,Changchun 130012,China
  • Received:2022-12-30 Online:2023-05-10 Published:2023-02-24
  • Contact: YAN Wenfu, ZHANG Jianan E-mail:yanw@jlu.edu.cn;zjn@zzu.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(21875221);the Key Scientific and Technological Project of Henan Province, China(222102240082);the China Postdoctoral Science Foundation(2022M722866);the Postgraduate Education Reform Project of Henan Province, China(2021SJGLX093Y);the International Talent Cooperation Program in Henan Province, China(HNGD2022036)

摘要:

过氧化氢(H2O2)作为一种多功能且环保的氧化剂, 在工业生产、 漂白、 消毒和废水处理等领域都发挥着重要作用. 传统的蒽醌工艺由于不环保、 不安全且流程复杂, 无法成为批量生产过氧化氢的最佳选择. 基于电化学氧还原反应(ORR)的合成方法是一种有价值的替代蒽醌生产的方法. 通常, H2O2可以通过2e ORR过程合成. 碳基催化剂因储量丰富、 成本低、 结构可调和导电性好等优点, 被认为是用于2e ORR的最佳催化剂之一. 本文综合评述了近年来碳基催化剂在电化学合成H2O2方面的研究进展. 首先, 介绍了2e ORR过程的基本原理, 揭示了影响ORR路径的关键因素; 然后, 阐述了密度泛函理论(DFT)计算对揭示催化活性位点的关键作用, 并指明火山图是一种预测催化剂选择性的重要工具; 综合评述了促进H2O2产生的几种有效策略(优化金属单原子、 构建催化剂表面缺陷工程、 引入吡咯氮、 掺杂含氧官能团及掺杂其它杂原子); 介绍了批量生产H2O2的装置发展及其优缺点; 最后, 展望了电化学合成H2O2在未来发展中可能面临的机遇和挑战.

关键词: 过氧化氢, 二电子氧还原, 碳基催化剂, 火山图, 电解池

Abstract:

Hydrogen peroxide(H2O2) as a multifunctional and environmentally friendly oxidizer, plays a crucial role in industrial production, bleaching, disinfection, and wastewater treatment, etc. The traditional anthraquinone process is not the ideal choice for batch H2O2 production due to the disadvantages of environmental pollution, insecurity, and complicated process. Typically, H2O2 can be synthesized by the 2-electron(2e) oxygen reduction reaction(ORR) process, which process is a promising alternative to produce the H2O2 at a large scale. Carbon-based materials are considered as one kind of the best catalysts for 2e ORR due to their abundant reserves, low cost, adjustable structure, and good conductivity. Therefore, this paper reviews the research progress of carbon-based catalysts in 2eORR for H2O2. Firstly, the basic principle of 2e ORR is introduced, and the key factors affecting the ORR path are revealed. Then, density functional theory(DFT) employed to reveal the essence of catalytic active sites is introduced. After that, several effective strategies on catalysts for promoting the production of H2O2 are summarized in detail, including optimized single atom catalysts(SACs), defect engineering on catalyst surface, pyrrole nitrogen doping, oxygen-containing functional groups doping, and other heteroatoms(e.g. S, P, F) doping. At last, the deve-lopment of the practical applications in the devices for mass production of H2O2 are discussed. Finally, the potential opportunities and challenges in the future development of electrochemical synthesis of H2O2 are proposed.

Key words: H2O2, 2e? Oxygen reduction reaction, Carbon-based catalyst, Volcano plot, Electrolytic cell

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