甲烷化
光催化
氮化碳
催化作用
碳纤维
材料科学
氮化物
铂金
碳原子
化学工程
光化学
纳米技术
无机化学
化学
有机化学
复合材料
工程类
复合数
图层(电子)
烷基
作者
Xianjin Shi,Yu Huang,Yanan Bo,Delong Duan,Zhenyu Wang,Junji Cao,Gangqiang Zhu,Wingkei Ho,Liqin Wang,Tingting Huang,Yujie Xiong
标识
DOI:10.1002/anie.202203063
摘要
Abstract Solar‐driven CO 2 methanation with water is an important route to simultaneously address carbon neutrality and produce fuels. It is challenging to achieve high selectivity in CO 2 methanation due to competing reactions. Nonetheless, aspects of the catalyst design can be controlled with meaningful effects on the catalytic outcomes. We report highly selective CO 2 methanation with water vapor using a photocatalyst that integrates polymeric carbon nitride (CN) with single Pt atoms. As revealed by experimental characterization and theoretical simulations, the widely explored Pt−CN catalyst is adapted for selective CO 2 methanation with our rationally designed synthetic method. The synthesis creates defects in CN along with formation of hydroxyl groups proximal to the coordinated Pt atoms. The photocatalyst exhibits high activity and carbon selectivity (99 %) for CH 4 production in photocatalytic CO 2 reduction with pure water. This work provides atomic scale insight into the design of photocatalysts for selective CO 2 methanation.
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