Abstract:The widespread use of fossil energy has led to wanton emission of CO2 into the atmosphere, causing a series of serious environmental problems. CO2 reverse water gas shift (RWGS) reaction is an effective way to realize the resource utilization of CO2. The research on catalysts for RWGS reaction was systematically summarized. The RWGS reaction performance of Pd,Au,Pt,Cu,Fe and Mo-based catalysts was analyzed in detail. The effects of the interaction between metal and support and the electronic effect of doped elements on the catalytic RWGS reaction performances were systematically analyzed. Precious metals such as Pd, Au, and Pt have weak binding ability and directional conversion ability to CO2,so it is necessary to further improve the adsorption and activation ability of precious metal catalysts to CO2 molecules to improve their catalytic performance. The low-temperature activity of non-precious metals including Cu, Fe and Mo-based catalysts is poor. With the help of new catalyst preparation methods and strategies, the low-temperature catalytic conversion activity of CO2 molecules will be further improved. The results show that the RWGS reaction performances of the corresponding catalyst can be regulated by optimizing the interaction between the active components in the catalyst and the support or promoter. The mechanism of CO2 hydrogenation on non-precious metal and precious metal catalysts was summarized, and the difference in RWGS reaction performance between non-precious metal and precious metal catalysts was analyzed, providing a feasible idea and theoretical basis for the development and preparation of new catalyst materials for RWGS reaction.