化工进展 ›› 2024, Vol. 43 ›› Issue (12): 6735-6749.DOI: 10.16085/j.issn.1000-6613.2023-2051

• 工业催化 • 上一篇    

铜基催化剂电催化还原CO2制乙醇最新研究进展

佟振伟(), 闾菲, 马子然(), 李歌, 彭胜攀   

  1. 北京低碳清洁能源研究院,北京 102211
  • 收稿日期:2023-11-24 修回日期:2024-02-28 出版日期:2024-12-15 发布日期:2025-01-11
  • 通讯作者: 马子然
  • 作者简介:佟振伟(1991-),女,博士研究生,研究方向为光电催化。E-mail:zhenwei.tong@chnenergy.com.cn
  • 基金资助:
    国家能源集团科技创新项目(KJ9300000562)

Recent advances in copper-based catalysts for electrocatalytic reduction of CO2 to ethanol

TONG Zhenwei(), LYU Fei, MA Ziran(), LI Ge, PENG Shengpan   

  1. National Institute of Clean and Low Carbon Energy, Beijing 102211, China
  • Received:2023-11-24 Revised:2024-02-28 Online:2024-12-15 Published:2025-01-11
  • Contact: MA Ziran

摘要:

CO2电催化还原技术在能源转换和温室气体减排中具有重要应用潜力。如何获得高电流密度、高选择性的目标产物,尤其是多碳产物,成为该领域的难点和热点。本文综述了铜基催化剂在电催化还原CO2制乙醇领域的最新研究进展,包括CO2电催化制乙醇的最高性能水平、催化剂材料的改性策略、电解工艺创新、电极稳定性调控、反应机理等。特别关注了那些能够达到工业应用电流密度且乙醇选择性较高的铜基催化剂的设计、合成和应用。讨论了影响铜基催化剂性能的关键因素,如催化剂的价态、催化剂性能衰减以及电极稳定性等。最后,展望了铜基催化剂在CO2电催化还原制乙醇领域的未来研究方向,包括提高催化效率、稳定性和工艺放大研究。本文旨在为电催化CO2还原制乙醇高效催化体系的研发和工业化可行性提供参考和建议。

关键词: 电催化还原, 二氧化碳, 铜, 乙醇, 稳定性, 选择性

Abstract:

The CO2 electrocatalytic reduction (CO2ER) technology has a high potential for energy conversion and greenhouse gas reduction. Achieving high current density and desired products with high selectivity, particularly multi-carbon compounds, has become a challenging and hot topic in this field. This article reviews the latest research progress on copper-based catalysts for the electrocatalytic reduction of CO2 to ethanol, including the excellent performance, catalyst modification strategies, novel electrolysis processes, stability control, and reaction mechanisms. Special emphasis is placed on the design, synthesis, and application of the copper-based catalysts that can achieve industrially relevant current densities and high selectivity for ethanol. The article also discusses the key factors affecting the catalyst performance, such as the catalyst's oxidation state, performance decline, and electrode stability. Finally, it gives prospects for the future research directions of copper-based catalysts for CO2ER to ethanol, including improving catalytic efficiency, stability and process scale-ups. This article is expected to provide references and suggestions for the development of efficient catalytic systems for CO2ER to ethanol and their industrialization.

Key words: electrocatalytic reduction, carbon dioxide, copper, ethanol, stability, selectivity

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