Functional customization of two-dimensional materials for photocatalytic activation and conversion of inert small molecules in the air  

作　　者：Ming Cheng Lan Yang Huanhuan Zhang Jingjing Yang Chong Xiao Yi Xie 

机构地区：[1]Hefei National Research Center for Physical Sciences at the Microscale,University of Science and Technology of China,Hefei 230026,China [2]Institute of Energy,Hefei Comprehensive National Science Center,Hefei 230031,China

出　　处：《National Science Open》2023年第2期46-75,共30页国家科学进展（英文）

基　　金：supported by the Strategic Priority Research Program of Chinese Academy of Sciences(XDB36030300);the National Natural Science Foundation of China(21890750,U2032212);the Youth Innovation Promotion Association CAS(202092);and the Fundamental Research Funds for the Central Universities(WK2340000094).

摘　　要：Air has the advantage of abundance and easy availability,so it is suitable to be used as a synthetic raw material and energy source.However,the triggering of inert small molecules in the air,like O_(2),N2,and CO_(2),is a kinetically complex and energetically challenging multistep reaction.Photocatalysis brings hope for this challenge,but obstacles remain in many aspects.Here,aiming at the key difficulties of the photocatalytic activation and conversion of these three inert small molecules,i.e.,regulating electronic structure,active sites,charge carrier separation and mobility,and reaction energy barrier,we propose the concept of functional customization strategy of ultrathin two-dimensional materials for achieving more efficient activation and better performance,including thickness control,vacancy engineering,doping operation,single-atom site fabrication,and composite construction.The in-depth understanding of the functional customization will provide more profound guidance for designing photocatalysts that specialize in activating and converting inert small molecules.

关 键 词：inert small molecules PHOTOCATALYSIS functional customization DINITROGEN DIOXYGEN carbon dioxide 

分 类 号：O643.36[理学—物理化学] O644.1[理学—化学]