化工进展 ›› 2017, Vol. 36 ›› Issue (06): 2150-2157.DOI: 10.16085/j.issn.1000-6613.2017.06.026

• 工业催化 • 上一篇    下一篇

CO2电催化还原制烃类产物的研究进展

景维云1, 毛庆1, 石越1, 杜兆龙2, 肖宇2, 刘松3, 徐金铭3, 黄延强3   

  1. 1 大连理工大学化工学院, 辽宁 大连 116023;
    2 全球能源互联网研究院, 北京 102200;
    3 中国科学院大连化学物理研究所航天催化与新材料研究室, 辽宁 大连 116023
  • 收稿日期:2016-11-17 修回日期:2017-01-09 出版日期:2017-06-05 发布日期:2017-06-05
  • 通讯作者: 毛庆,黄延强
  • 作者简介:景维云(1993—),男,硕士研究生。E-mail:jingweiyun@mail.dlut.edu.cn。
  • 基金资助:
    国家自然科学基金(21403029)、国家电网公司科技项目(SGRI-DL-71-16-015)、科技部重大研发计划(2016YFB0600902)、辽宁省教育厅科学研究一般项目(L2014022)及辽宁省自然科学基金(201602162)项目。

Research progress of electro-catalytic reduction of CO2 to hydrocarbons

JING Weiyun1, MAO Qing1, SHI Yue1, DU Zhaolong2, XIAO Yu2, LIU Song3, XU Jinming3, HUANG Yanqiang3   

  1. 1 School of Chemical Engineering, Dalian University of Technology, Dalian 116023, Liaoning, China;
    2 Global Energy Interconnection Research Institute, Beijing 102200, China;
    3 Laboratory of Aerospace Catalysts and New Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China
  • Received:2016-11-17 Revised:2017-01-09 Online:2017-06-05 Published:2017-06-05

摘要: 应用可再生能源驱动CO2电催化还原制备燃料,是目前清洁能源发展最具前景的方向之一。本文综述了以气态烃类(CH4、C2H4)为目标产物的CO2电催化还原的研究进展,分别介绍了电催化材料、电解质溶液以及反应机理的研究现状。指出在水溶液电解质中,电催化材料需兼具烃类产物的高选择性与电化学析氢反应的抑制能力,Cu与Cu基材料是电催化材料的首选,Cu的氧化物由于其丰富的结构特征拓宽了电催化材料优选范围。水溶液电解质的性质会显著影响CO2电催化还原产物的选择性;非水溶液或痕水溶液电解质由于可以显著抑制析氢反应,将会进一步拓宽电催化材料的优选范围。最后介绍了CO2电催化还原机理研究的现状,指出原位电化学谱学方法的应用与CO2电催化还原机理模型研究工作的开展,将成为人们深入认识以烃类为目标产物的CO2电催化还原反应的关键,并有利于指导电催化材料与电解质材料的研究开发。

关键词: 二氧化碳, 碳氢化合物, 电化学

Abstract: Electroreduction of CO2 into useful fuels,especially those driven by renewable energy,is one of the most promising strategies for clean energy development. Current researches of the electro-catalytic reduction of carbon dioxide to hydrocarbons(CH4,C2H4)is reviewed. It covers the research status of electro-catalytic materials,electrolyte solution and the reaction mechanisms. Among aqueous electrolytes,copper and copper based materials are preferred as they have both high selectivity in the hydrocarbons transfer and inhibiting ability of hydrogen evolution reaction (HER). Copper oxides provides more options of the electro-catalytic materials due to their multiplex structural features. Aqueous electrolytes have significant effects on the selection of the electro-catalytic reduction products,while non-aqueous or trace-aqueous electrolytes are promising because of their significant inhibition ability of the HER. Finally,the research status of the reaction mechanisms are introduced. It is suggested that the application of in-situ spectroscopy techniques and the modeling work based on the reaction kinetics are highly demanded,which would be helpful to guide the development of the electro-catalysts and the electrolytes.

Key words: carbon dioxide, hydrocarbon, electrochemistry

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