Catalytic Reduction of CO2 to CO via Reverse Water Gas Shift Reaction: Recent Advances in the Design of Active and Selective Supported Metal Catalysts

被引:4
|
作者
Min Zhu [1 ,2 ,3 ]
Qingfeng Ge [4 ]
Xinli Zhu [1 ,2 ,3 ]
机构
[1] Key Laboratory for Green Chemical Technology of Ministry of Education , Tianjin University
[2] School of Chemical Engineering and Technology , Tianjin University
[3] Collaborative Innovation Center of Chemical Science and Engineering , Tianjin University
[4] Department of Chemistry and Biochemistry , Southern Illinois University
基金
中国国家自然科学基金;
关键词
Carbon dioxide; Reverse water gas shift reaction; Methanation; Supported metal catalyst; Mechanism;
D O I
暂无
中图分类号
X701 [废气的处理与利用]; O643.36 [催化剂];
学科分类号
081705 ; 083002 ;
摘要
The catalytic conversion of COto CO via a reverse water gas shift(RWGS) reaction followed by well-established synthesis gas conversion technologies may provide a potential approach to convert COto valuable chemicals and fuels. However, this reaction is mildly endothermic and competed by a strongly exothermic COmethanation reaction at low temperatures. Therefore, the improvement in the low-temperature activities and selectivity of the RWGS reaction is a key challenge for catalyst designs. We reviewed recent advances in the design strategies of supported metal catalysts for enhancing the activity of COconversion and its selectivity to CO. These strategies include varying support, tuning metal–support interactions, adding reducible transition metal oxide promoters, forming bimetallic alloys, adding alkali metals, and enveloping metal particles. These advances suggest that enhancing COadsorption and facilitating CO desorption are key factors to enhance COconversion and CO selectivity. This short review may provide insights into future RWGS catalyst designs and optimization.
引用
收藏
页码:172 / 187
页数:16
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