| 摘要: |
| 化石能源的广泛使用，导致CO2肆意排放至大气环境，引发一系列严重的环境问题。CO2逆水煤气变换（RWGS）反应，是实现CO2资源化利用的有效途径。对RWGS反应催化剂研究情况进行了系统的总结和综述，详细地分析了Pd、Au、Pt、Cu、Fe和Mo基等催化剂的RWGS反应性能，对金属与载体间相互作用和掺杂元素的电子效应对催化RWGS反应性能的影响进行了系统的分析。Pd、Au和Pt等贵金属对CO2弱的结合能力和定向转化能力，需进一步提高贵金属催化剂对CO2分子的吸附和活化能力来提升其催化性能。非贵金属Cu、Fe和Mo基催化剂的低温活性较差，借助新的催化剂制备方法和策略，将进一步提升CO2分子的低温催化转化活性。研究结果证实，通过优化催化剂中活性组分与载体或助剂的相互作用，能实现对相应催化剂的RWGS反应性能进行调控。总结了非贵金属和贵金属催化剂上CO2 加氢机理，分析了非贵金属和贵金属催化剂RWGS反应性能间的差异，为开发制备新型的RWGS反应催化剂材料提供了可行思路和理论依据。 |
| 关键词: 二氧化碳 逆水煤气反应（RWGS） 催化剂 |
| DOI： |
| 分类号: |
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| Research Progress of Catalysts for CO2Hydrogenation Reverse Water Gas Shift (RWGS) Reaction |
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ZHOU Guilin1,2, AI Xin2
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1.School of Environment and Resources,Chongqing Technology and Business University, Chongqing 400067, China
2.Engineering Research Center for Waste Oil Recovery Technology and Equipment,Ministry of Education,Chongqing Technology and Business University, Chongqing 400067, China
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| 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. |
| Key words: carbon dioxide reverse water gas shift (RWGS) reaction catalyst |
