Incorporation of metal active sites on porous polycarbazoles for photocatalytic CO2 reduction
Incorporation of metal active sites on porous polycarbazoles for photocatalytic CO2 reduction
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在多孔聚咔唑上掺入金属活性位点用于光催化二氧化碳还原
DOI：
10.1002/cctc.202101872
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发表时间：
2022-02
期刊：
影响因子：
4.5
通讯作者：
Wang Xinchen
中科院分区：
文献类型：
--
作者：
Wang Wenyan;Xi Yang;Yang Can;Byun Jeehye;Cheng Jiajia;Wang Sibo;Wang Xinchen
Photocatalytic conversion of carbon dioxide (CO2) to valuable products is one of the promising approaches to mitigate climate change and provide chemical fuels. The structural design of photocatalysts has been therefore directed to enhancing the CO2 conversion efficiency and selectivity. Herein, we report that the metalated porous polycarbazoles, made by facile one-pot oxidative polymerization and successive transition metal impregnation, can effectively convert CO2 into carbon monoxide (CO) with high selectivity under visible light irradiation. The high porosity of the porous polycarbazoles provides enhanced CO2 adsorption and the incorporated metals facilitate the CO2 activation. The type of metal ions influences the CO selectivity by altering surface reaction kinetics for CO2 reduction. Our approach proves that the photocatalytic CO2 reduction ability and selectivity of porous conjugated polymers can be improved by decorating functional metal species to modulate the adsorption and activation behavior of CO2 molecules.
