钴
酞菁
介孔材料
氮化物
氮化碳
材料科学
碳纤维
可见光谱
聚合
化学
化学工程
光化学
纳米技术
催化作用
光催化
有机化学
聚合物
光电子学
工程类
复合材料
冶金
复合数
图层(电子)
作者
Souvik Roy,Erwin Reisner
标识
DOI:10.1002/anie.201907082
摘要
The integration of molecular catalysts with low-cost, solid light absorbers presents a promising strategy to construct catalysts for the generation of solar fuels. Here, we report a photocatalyst for CO2 reduction that consists of a polymeric cobalt phthalocyanine catalyst (CoPPc) coupled with mesoporous carbon nitride (mpg-CNx ) as the photosensitizer. This precious-metal-free hybrid catalyst selectively converts CO2 to CO in organic solvents under UV/Vis light (AM 1.5G, 100 mW cm-2 , λ>300 nm) with a cobalt-based turnover number of 90 for CO after 60 h. Notably, the photocatalyst retains 60 % CO evolution activity under visible light irradiation (λ>400 nm) and displays moderate water tolerance. The in situ polymerization of the phthalocyanine allows control of catalyst loading and is key for achieving photocatalytic CO2 conversion.
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