化工进展 ›› 2022, Vol. 41 ›› Issue (3): 1224-1240.doi: 10.16085/j.issn.1000-6613.2021-2009

• 二氧化碳的捕集、封存及利用 • 上一篇    下一篇

CO2电催化还原产合成气研究进展

华亚妮1(), 冯少广2(), 党欣悦1, 郝文斌1, 张保文1, 高展1()   

  1. 1.西安交通大学化学工程与技术学院,陕西 西安 710049
    2.佛燃能源集团股份有限公司,广东 佛山 528000
  • 收稿日期:2021-09-23 修回日期:2021-11-08 出版日期:2022-03-23 发布日期:2022-03-28
  • 通讯作者: 高展 E-mail:huayani@xjtu.edu.cn;fengsg@fsgas.com;zhangao18@xjtu.edu.cn
  • 作者简介:华亚妮(1986—),女,博士,助理教授,研究方向为CO2电催化还原。E-mail:huayani@xjtu.edu.cn|冯少广(1981—),男,博士,高级工程师,研究方向燃气及新能源、完整性管理等。E-mail:fengsg@fsgas.com
  • 基金资助:
    国家引进海外高层次人才青年计划;电力系统国家重点实验室资助课题(SKLD21KM07)

Research progress of CO2 electrocatalytic reduction to syngas

HUA Yani1(), FENG Shaoguang2(), DANG Xinyue1, HAO Wenbin1, ZHANG Baowen1, GAO Zhan1()   

  1. 1.School of Chemical Engineering and Technology, Xi’an Jiaotong University, Xi’an 710049, Shaanxi, China
    2.Foran Energy Group Co. , Ltd. , Foshan 528000, Guangdong, China
  • Received:2021-09-23 Revised:2021-11-08 Online:2022-03-23 Published:2022-03-28
  • Contact: GAO Zhan E-mail:huayani@xjtu.edu.cn;fengsg@fsgas.com;zhangao18@xjtu.edu.cn

摘要:

CO2电催化还原产合成气是通过CO2资源化利用实现碳中和的有效途径之一,但仍存在过电位高、选择性差、难以精准调控合成气组成比例等问题。本文综述了CO2电催化还原产合成气的催化剂研究进展,包括金属催化剂、金属配合物催化剂、金属氧化物及硫化物催化剂、金属单原子催化剂以及非金属催化剂等;进一步地,概述了H型电解池、连续流电解池、固体氧化物电解池以及膜反应器电解池等电化学反应池特征。在此基础上,总结了提升CO2电催化还原产合成气效率的有效策略,包括阳极反应耦合、双活性位催化剂结构设计以及催化剂多级形貌调控等。最后探讨了CO2电催化还原产合成气领域未来的发展方向:通过机器学习辅助催化剂设计筛选;结合多尺度模拟理解电化学界面过程;利用原位表征技术探究反应机理等。

关键词: 二氧化碳, 电催化, 还原, 合成气, 催化剂

Abstract:

Electrocatalytic CO2 reduction to syngas is one of the effective ways to realize CO2 utilization, but some problems, such as high overpotential, poor selectivity and difficulty in accurately regulating the composition of syngas, still exist in its application. This paper reviews the research progresses of the electrocatalysts for CO2 reduction to syngas, including metal catalysts, metal complex catalysts, metal oxide and sulfide catalysts, as well as single atom catalysts and non-metallic catalysts. Furthermore, the characteristics of H-type cell, continuous flow cell, solid oxide electrolytic cell and membrane reactor electrolytic cell are introduced. Also, effective strategies to improve the catalytic efficiency of CO2 electroreduction to syngas are summarized, including anodic reaction coupling, structure design of double-active site catalysts and control of catalysts' hierarchical morphology. Finally, the future development directions of syngas production by CO2 electroreduction are discussed, including machine learning aided catalyst design, understanding the interfacial electrochemical process with multi-scale simulation and exploring the reaction mechanism using operando characterizations.

Key words: carbon dioxide, electrocatalysis, reduction, syngas, catalysts

中图分类号: 

  • O643.36