Thermal catalysis CO2 hydrogenation to methanol has significant carbon reduction effect,can effectively store renewable energy,and has broad prospects for industrial prospect.In this review,the reaction network for the CO2 hydrogenation to methanol and thermodynamic challenges were introduced,and the process and its industrial applications at domestic and abroad were summarized.Then the research progress on the catalysts with different active components in recent years was reviewed from the aspects of preparation method,the active sites,reaction mechanism and kinetics in terms of problems and advantages.The structure-activity relationship of copper-based catalysts,including the effects of the active components,support and additives on the activity and methanol selectivity,was emphatically described.A prospect was finally presented for the catalyst development in the future.
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