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Highly Efficient and Selective Visible‐Light Driven CO 2 ‐to‐CO Conversion by a Co(II) Homogeneous Catalyst in H 2 O/CH 3 CN Solution
Author(s) -
Liu DongCheng,
Huang HaiHua,
Wang JiaWei,
Jiang Long,
Zhong DiChang,
Lu TongBu
Publication year - 2018
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201800727
Subject(s) - catalysis , selectivity , turnover number , chemistry , homogeneous , photocatalysis , homogeneous catalysis , amine gas treating , photochemistry , visible spectrum , materials science , organic chemistry , thermodynamics , physics , optoelectronics
The photochemical reduction of CO 2 to chemical resources has displayed the promise to solve energy and environmental problems. To facilitate this reaction, a considerable challenge is to design not only highly efficient and selective, but also economic catalysts. In this study, we report a homogeneous catalyst, [CoL 1 (CH 3 CN)](ClO 4 ) 2 ( 1 , L 1 =Tris[2‐( iso ‐propylamino)ethyl]amine) which displays high activity and selectivity for CO 2 reduction to CO driven by visible light in a water‐containing system, with turnover numbers (TON CO ) and turnover frequencies (TOF), and CO selectivity values of 44800, 1.24 s −1 and 97 %, respectively. The excellent performances of 1 for the photocatalytic CO 2 ‐to‐CO conversion is confirmed by control experiments and its catalytic mechanism is corroborated by DFT calculations.