Abstract: Growing emission of CO2 has brought serious consequences to the environment. At the same time，fossil energy is depleting，which challenges oil-based low carbon olefins industry. Using CO2 to produce carbon olefins is one of effective ways to alleviate the dual pressure of environment and resource. Thermodynamic analysis of CO2 hydrogenation to light olefins，adsorption/activation mechanism of CO2 on single crystal and oxides of transition metal and research progress of catalyst for hydrogenation of carbon dioxide to light alkenes are reviewed. The advantages and disadvantages of catalysts for CO2 hydrogenation，including single metal catalysts，bimetallic catalysts and the composite catalyst are analyzed. The problem of catalyst is how to balance selectivity and conversion rate. The future research directions of catalyst are mechanism of catalytic reaction，and catalyst preparation and modification.

Key words: carbon dioxide, hydrogenation, light alkenes, adsorption and activation

摘要： 随着工业化的发展，CO2的排放与日俱增，给环境带来了不可忽视的严重后果。同时，石油资源日渐匮乏，使得以石油为原料制低碳烯烃的工业面临严峻的挑战。利用CO2制低碳烯烃是缓解环境与资源双重压力的有效途径之一。本文综述了CO2催化加氢制低碳烯烃的热力学分析，CO2在过渡金属单晶和氧化物表面的吸附活化机理以及CO2催化加氢制低碳烯烃催化剂的研究进展。分析比较了包括单金属催化剂、双金属催化剂和复合催化剂在内的CO2制低碳烯烃催化剂的优缺点。提出了催化反应过程中存在催化剂难以兼顾选择性和转化率的技术难题，并指出了今后的主要研究方向是加强催化反应机理和催化剂制备、改性技术的研究。

关键词: 二氧化碳, 加氢, 低碳烯烃, 吸附活化