Anchoring metal ions in amine-functionalized boron imidazolate framework for photocatalytic reduction of CO_(2)  

作　　者：Guilan Xu Qin-Long Hong Yayong Sun Meng Liu Hai-Xia Zhang Jian Zhang 

机构地区：[1]State Key Laboratory of Structural Chemistry,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou 350002,China [2]Key Lab for Sport Shoes Upper Materials of Fujian Province,Fujian Huafeng New Material Co.,Ltd.,Putian 351164,China

出　　处：《Chinese Chemical Letters》2022年第6期2915-2918,共4页中国化学快报（英文版）

基　　金：National Natural Science Foundation of China(Nos.21935010,21773242);National Key Research and Development Program of China(No.2018YFA0208600);the Strategic Priority Research Program of the Chinese Academy of Sciences(No.XDB20000000)。

摘　　要：The photocatalytic reduction of CO_(2)to energy-rich chemicals is highly appealing for alleviation of energy crisis and environment pollution.The introduction of different active sites is a key factor to determine the reaction activity and selectivity.Here,we demonstrate the metal ion-dependent performance for photocatalytic CO_(2)reduction by anchoring transition metal ions(Co^(2+)and Ni^(2+))in an amine-functionalized boron imidazolate framework(BIF-43).As a result,Ni@BIF-43 realized a high selectivity of 90.2%for the CO_(2)-to-CO,while Co@BIF-43 achieved more efficient conversion with a high CO production rate of 2036.0μmol g^(-1)h^(-1).Significantly,precise control of isolated metal site on a well-defined structure through coordination-assisted strategies enables us to better understand the specific effects of different metal-ion species on photoreduction of CO_(2)as well as the catalytic mechanism.

关 键 词：Metal-organic framework CO_(2)reduction Boron-imidazolate framework Photocatalysis Structure 

分 类 号：O643.36[理学—物理化学] O644.1[理学—化学]