在"碳达峰、碳中和"背景下,CO₂捕集、封存与利用技术已成为一大研究热点,其中热催化CO₂加氢制乙醇是实现CO₂转化为高价值化学品或绿色燃料的一种有效途径。近年来,将CO₂加氢转化为乙醇已经取得重大突破,但因为CO₂具有稳定的化学性质以及后续复杂的链增长过程,导致乙醇选择性低、副产物多等问题。概述了CO₂加氢制乙醇的研究进展,对贵金属催化剂、过渡金属催化剂、串联催化剂、金属有机框架催化剂、负载型催化剂、金属碳化物催化剂以及沸石类催化剂进行了讨论,并且阐述了CO₂加氢制乙醇的反应机理。

Under the background of "carbon dioxide emissions peaking and carbon neutrality",the CO₂ capture,storage and utilization technologies have become a highlight research topic.CO₂ hydrogenation to ethanol is an effective way to convert CO₂ into high-value chemicals or fuels.In recent years,the hydrogenation of CO₂ to ethanol has made many great breakthroughs.Because of the stable chemical properties of CO₂ and the subsequent complex chain growth process,the selectivity of ethanol is low and many by-products are generated.Herein,the research progress in hydrogenation of CO₂ to ethanol is reviewed,along with the corresponding noble metal-based catalysts,transition metal-based catalysts,tandem catalysts,metal-organic frameworks catalysts,supported catalysts,metal-carbide catalysts and zeolite catalysts.The reaction mechanism of CO₂ hydrogenation to ethanol is also described.

张鹏(1998-),男,硕士生,研究方向为CO₂加氢制乙醇催化剂开发,18311711485@163.com;刘意(1989-),男,博士,副研究员,研究方向为CO、CO₂转化制高值化学品及绿色燃料,通讯联系人,buctliuyi@126.com;yi.liu.ft@chnenergy.com.cn。