Chemical Industry and Engineering Progress ›› 2024, Vol. 43 ›› Issue (5): 2760-2775.DOI: 10.16085/j.issn.1000-6613.2024-0098

• Carbon dioxide capture and utilization • Previous Articles    

Research progress of electrocatalysts towards electrocatalytic reduction reaction of carbon dioxide to syngas

HUANG Peng1(), ZOU Ying2, WANG Baohuan2, WANG Xiaoyan2, ZHAO Yong1, LAING Xin2(), HU Di1   

  1. 1.China Coal Research Institute Corporation Company Limited, Beijing 100013, China
    2.State Key Laboratory of Chemical Resource Engineering, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
  • Received:2024-01-14 Revised:2024-04-25 Online:2024-06-15 Published:2024-05-15
  • Contact: LAING Xin

二氧化碳电催化还原反应制合成气催化剂研究进展

黄澎1(), 邹颖2, 王宝焕2, 王逍妍2, 赵勇1, 梁鑫2(), 胡迪1   

  1. 1.煤炭科学技术研究院有限公司,北京 100013
    2.北京化工大学化学工程学院化工资源有效利用国家重点实验室,北京 100029
  • 通讯作者: 梁鑫
  • 作者简介:黄澎(1982—),男,博士,研究员,研究方向为煤炭洁净转化、固废利用、CO2还原和精细化学品等。E-mail:squallok@qq.com
  • 基金资助:
    天地科技创业资金项目(2022-2-TD-MS001);国家自然科学基金(21571012)

Abstract:

The conversion of carbon dioxide (CO2) to valuable syngas (CO/H2) by electrocatalytic carbon dioxide reduction reaction (CRR) has attracted widespread attention. The development of electrocatalysts for CRR is crucial for efficient and accurate synthesis of syngas. This article reviews the research progress on the reaction process, reaction mechanism, and the electrocatalysts of CRR to syngas. The types, advantages, existing problems, and development directions of existing CRR catalysts were introduced. The influence of the types and proportions of doping elements in catalysts on the reaction intermediates were analyzed in detail. The effects of the edge and active site of the metal atom doped with non-metallic elements on CRR were pointed out. The precise regulation CO and H2 by catalyst design and reaction condition adjustment were discussed. The article also discusses the ways to promote CRR and regulate the hydrocarbon ratio of syngas such as increasing reaction active sites and reducing the reaction energy barrier of intermediates. Furthermore, it was concluded that the efficiency of CRR to syngas could be improved through multi-stage regulation of catalyst morphology, multi-active site design, and the coupling of CO2 reduction and anodic reaction. Finally, the challenges and issues in future industrial production of syngas through CRR were discussed.

Key words: syngas, carbon dioxide, electrochemistry, catalyst

摘要:

利用电催化二氧化碳还原反应(CRR)将CO2转变为有价值的合成气(CO/H2)受到广泛关注。CRR电催化剂的开发对于高效、精确制备合成气至关重要。本文综述了CRR制备合成气的反应过程、反应机理以及催化剂等方面的研究进展,介绍了现有CRR催化剂的种类、优点、存在的问题以及发展方向,具体分析了催化剂的掺杂元素种类和比例对反应中间体的影响,指出了掺杂非金属元素的金属原子边缘和活性位对CRR的作用,探讨了催化剂设计和反应条件调节对CO和H2比例的精确调控。本文也讨论了增加反应活性位点、降低中间体的反应能垒等促进CRR以及调节合成气碳氢比的方式。此外,提出了可通过催化剂多级形貌调控、多活性位点设计、CO2还原与阳极反应耦合等途径,提升CRR制合成气效率的策略。最后,探讨和展望了CRR制合成气在未来工业化生产中存在的挑战和问题。

关键词: 合成气, 二氧化碳, 电化学, 催化剂

CLC Number: 

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