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Construction of Dual‐Active‐Site Copper Catalyst Containing both CuN 3 and CuN 4 Sites
Author(s) -
Xiong Yu,
Wang Shibin,
Chen Wenxing,
Zhang Jian,
Li Qiheng,
Hu HanShi,
Zheng Lirong,
Yan Wensheng,
Gu Lin,
Wang Dingsheng,
Li Yadong
Publication year - 2021
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.202006834
Subject(s) - catalysis , active site , oxidizing agent , copper , active center , rational design , yield (engineering) , inert , adsorption , active oxygen , chemistry , inorganic chemistry , materials science , nanotechnology , metallurgy , organic chemistry
Clear recognition and rational construction of suitable active center for specific reaction is always of great significance in designing highly efficient catalysts. Herein, a dual‐active‐site copper catalyst (DAS‐Cu) containing both CuN 3 and CuN 4 sites is reported. Such catalysts show extremely high catalytic performance (yield: up to 97%) toward oxyphosphorylation of alkenes, while catalysts with single active site (CuN 3 or CuN 4 ) are chemically inert in this reaction. Combined with theoretical and experimental results, the different roles of two different Cu active sites in this reaction are further identified. CuN 3 site captures the oxygen and trigger further oxidizing process, while CuN 4 site provides moderate adsorption sites for the protection of phosphonyl radicals. This work deeply discloses the significant cooperated role with two single‐atomic sites in one catalytic active center and brings up a valuable clue for the rational design of better‐performing heterogeneous catalyst.