关键词: CO₂加氢, 甲醇, 铜基催化剂, 制备方法, 反应机理

Abstract: With the increase of carbon dioxide（CO₂）concentration in the atmosphere，global warming problems are becoming more and more serious in recent years. Methanol synthesis from CO₂ hydrogenation is an efficient way for the recycle of CO₂. This process is of great significance from the viewpoint of environmental protection and utilization of renewable energy，and the catalyst plays a key role in the catalytic process. The recent progresses made in the field of catalyst for CO₂ hydrogenation were presented in terms of the component，the preparation method and the reaction mechanism. The nature of the active site in the catalyst was analyzed and the roles of carrier and promoter were summarized. A comparison and comment including the merit and/or the defect of different preparation methods for catalyst was made. Moreover，the reaction mechanisms were summarized and discussed. Based on the problems currently existing in the studies，the further research work should be focused on the investigation of reaction mechanism and the innovation of catalyst preparation method.

Key words: CO₂ hydrogenation, methanol, Cu-based catalysts, preparation method, reaction mechanism