化工进展 ›› 2025, Vol. 44 ›› Issue (5): 2825-2833.DOI: 10.16085/j.issn.1000-6613.2024-1729

• CO2减排利用 • 上一篇    

电-酶催化CO2转化生产化学品的研究展望

夏猛(), 赵雪冰, 蒋国强, 卢滇楠, 刘铮()   

  1. 清华大学化学工程系,北京 100084
  • 收稿日期:2024-10-28 修回日期:2024-12-18 出版日期:2025-05-25 发布日期:2025-05-20
  • 通讯作者: 刘铮
  • 作者简介:夏猛(1998—),男,博士研究生,研究方向为工业酶催化。E-mail:xiam20@mails.tsinghua.edu.cn
  • 基金资助:
    国家重点研发计划(2022YFC2105900);国家自然科学基金(22120102003)

Prospects for electro-enzymatic conversion of CO2 into chemicals

XIA Meng(), ZHAO Xuebing, JIANG Guoqiang, LU Diannan, LIU Zheng()   

  1. Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
  • Received:2024-10-28 Revised:2024-12-18 Online:2025-05-25 Published:2025-05-20
  • Contact: LIU Zheng

摘要:

酶催化CO2转化生产化学品具有反应条件温和、催化活性与选择性高的潜在优势,为化学工业实现碳中和目标提供了新途径,但需要提高酶在工业环境中的稳定性和催化活性、强化电子传递过程以及调控CO2水合反应以提高产能。固定化酶技术提供了提高酶在工业环境中稳定性的有效途径,电-酶催化集成了电场在能量供给和酶催化在CO2活化与反应选择性中的优势,为解决上述问题提供了新思路。本文综述了CO2还原酶的底物结合、CO2活化和电子传递特性,介绍了近期发展的酶催化和电-酶催化CO2合成化学品技术、以电催化为酶供能的两类电子传递过程和电-酶催化中的过程强化策略,从分子工程和过程工程层面探讨了电-酶催化CO2合成化学品的后续研究需要关注的问题和创新机遇。

关键词: 二氧化碳, 生物催化, 酶催化, 电-酶催化, 电子传递

Abstract:

Industrial application of enzymatic conversion of CO2 into chemicals, which is, by nature, advantageous in terms of mildness and high activity and selectivity, represents a carbon-neutral route for chemical industry but is hindered by the unsatisfactory stability and activity of enzyme in non-natural environment, low intensity of energy inputs as well as manipulating CO2 hydration reaction. Enzyme immobilization provides an effective way to improve the stability of enzyme in industrial environments. Electro-enzymatic catalysis combines the advantages of energy supply, CO2 activation and reaction selectivity and thus holds promise to overcome above-mentioned problems. This review starts with an overview of CO2 reducing enzymes and their catalytic properties in substrate binding, CO2 activation and electron transfer, which is classified into two categories in terms of surface reaction and active site reaction. Recent advancements in enzymatic and electro-enzymatic catalysis are detailed, highlighting those novel reductive mechanisms for CO2, as well as novel process intensification methods. The research demands and opportunities in molecular and process engineering of enzymatic conversion of CO2 are discussed.

Key words: carbon dioxide, biocatalysis, enzymatic catalysis, electro-enzymatic catalysis, electron transfer

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