Construction of Dual‐Active‐Site Copper Catalyst Containing both CuN3 and CuN4 Sites. Issue 8 (1st February 2021)

• Record Type: Journal Article
• Authors: Xiong, Yu; Wang, Shibin; Chen, Wenxing; Zhang, Jian; Li, Qiheng; Hu, Han‐Shi; Zheng, Lirong; Yan, Wensheng; Gu, Lin; Wang, Dingsheng; Li, Yadong
• Is Part Of: Small. Volume 17:Issue 8(2021)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2021-02-01
• Subjects: dual‐active‐site catalysts -- oxyphosphorylation reaction -- single atom catalysts; Nanotechnology -- Periodicals; Nanoparticles -- Periodicals; Microtechnology -- Periodicals; 620.5
• DOI: 10.1002/smll.202006834
• Languages: English
• ISSNs: 1613-6810

Abstract

Abstract: 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 CuN3 and CuN4 sites is reported. Such catalysts show extremely high catalytic performance (yield: up to 97%) toward oxyphosphorylation of alkenes, while catalysts with single active site (CuN3 or CuN4 ) 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. CuN3 site captures the oxygen and trigger further oxidizing process, while CuN4 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. Abstract : A novel and facile strategy to synthesize dual‐active‐site copper catalysts (DAS‐Cu) has been developed. DAS‐Cu shows excellent catalytic performance toward oxyphosphorylation of alkenes and the synergistic effect of two different atomically dispersed Cu sites play the key role in this reaction.