期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 61, 期 27, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202203063
关键词
Active Sites; CO2 Methanation; Defect Engineering; Polymeric Carbon Nitride; Single-Atom Catalysts
资金
- National Key Research and Development Program of China [2016YFA0203000]
- National Natural Science Foundation of China [51878644, 21725102, 41573138]
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDA23010300, XDA23010000]
Highly selective CO2 methanation with water vapor can be achieved using a photocatalyst that integrates polymeric carbon nitride (CN) with single Pt atoms. The catalyst exhibits high activity and carbon selectivity due to the introduction of defects and hydroxyl groups.
Solar-driven CO2 methanation with water is an important route to simultaneously address carbon neutrality and produce fuels. It is challenging to achieve high selectivity in CO2 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 CO2 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 CO2 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 CH4 production in photocatalytic CO2 reduction with pure water. This work provides atomic scale insight into the design of photocatalysts for selective CO2 methanation.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据