储能科学与技术 ›› 2021, Vol. 10 ›› Issue (6): 1963-1976.doi: 10.19799/j.cnki.2095-4239.2021.0122

• 氢能与燃料电池专刊 • 上一篇    下一篇

电化学氧还原反应合成H2O2碳基催化剂研究进展

何峰(), 张静静, 陈奕君, 张建(), 王得丽()   

  1. 华中科技大学化学与化工学院,能量转化与储存材料化学教育部重点实验室,湖北 武汉 430074
  • 收稿日期:2021-03-23 修回日期:2021-06-07 出版日期:2021-11-05 发布日期:2021-11-03
  • 作者简介:何峰(2000—),男,本科生,研究方向为电催化与电合成,E-mail:fenghe0109@hust.edu.cn|张建,副教授,研究方向为新能源与电催化,E-mail:zhangjian7@hust.edu.cn|王得丽,教授,研究方向为新能源与电催化,E-mail:wangdl81125@hust.edu.cn
  • 基金资助:
    国家自然科学基金项目(51802104);煤燃烧国家重点实验室开放基金项目(FSKLCCA2008)

Recent progress on carbon-based catalysts for electrochemical synthesis of H2O2 via oxygen reduction reaction

Feng HE(), Jingjing ZHANG, Yijun CHEN, Jian ZHANG(), Deli WANG()   

  1. Key Laboratory of Material Chemistry for Energy Conversion and Storage, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China
  • Received:2021-03-23 Revised:2021-06-07 Online:2021-11-05 Published:2021-11-03

摘要:

电化学氧还原反应(ORR)合成H2O2是一种低成本、无污染的绿色合成方法。但是,ORR动力学缓慢,存在四电子ORR生成H2O的竞争反应,因此需要使用催化剂提升ORR的反应活性以及二电子ORR的选择性。近年来,碳基材料因价格便宜、来源广泛、调控方法多样,被广泛应用于该领域。本文首先简要介绍了电催化ORR合成H2O2的机理,并根据机理分析了影响电化学合成H2O2催化性能的关键因素。接着阐述了提升碳基ORR催化剂活性与二电子选择性的策略,并着重介绍了非金属原子掺杂碳材料和过渡金属氮碳材料。最后,总结了碳基催化剂在电化学合成H2O2中存在的问题和面临的挑战,对碳基催化剂在电合成H2O2中应用的发展趋势进行了展望。

关键词: 电化学合成, 2电子氧还原反应, 过氧化氢, 掺杂碳材料, 过渡金属氮碳催化剂

Abstract:

The electrochemical synthesis of H2O2 via oxygen reduction reaction (ORR) is a low-cost, environment-friendly, and green synthesis method. However, the kinetics of ORR is very slow, and is also accompanied by the competitive reaction of 4 electron (4e-) ORR to generate H2O. The catalysts are therefore required. In recent years, carbon-based materials with low prices, abundant resources, competitive activity, and easy adjustability, have received extensive attention in this field. Herein, this review first briefly introduces the mechanism of ORR to the synthesis of H2O2, and the key factors of the catalytic performance of electrochemical synthesis of H2O2. Further, the strategy to improve the ORR activity and selectivity of carbon-based catalysts is reviewed, in which the doping of non-metallic atoms and the construction of transition metal single atoms on carbon-based materials are emphasized. Finally, the existing problems, challenges, and perspectives of carbon-based catalysts toward the electrosynthesis of H2O2 were described.

Key words: electrochemical synthesis, 2-electron oxygen reduction reaction, hydrogen peroxide, doped carbon materials, transition metal nitrogen-carbon catalysts

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