Highly Efficient and Selective Photocatalytic CO <sub>2</sub> Reduction to Ethanol by Cu <sub>4</sub> Clusters with Adjacent Cu Single Atoms Anchored on Carbon Nitride
Abstract
Abstract An efficient photocatalyst for CO 2 ‐to‐CH 3 CH 2 OH conversion comprising atomically dispersed Cu clusters (Cu 4 ) and single Cu sites coordinated with 2 N and 1 O anchored on two‐step calcinated C 3 N 4 (Cu 4 /Cu 1 @CN) is reported. It was found to catalyze the reduction of CO 2 to ethanol with production rate of 154 µmol g −1 h −1 and selectivity of 98%, the yield rate and selectivity exceed most of the reported results for ethanol production. Experimental and theoretical calculations indicate that the high efficiency of this catalyst arises from the strong synergy between Cu 4 clusters and adjacent Cu single atoms, which facilitates OC─CO coupling and promotes ethanol production.
Article Details
Authors (9)
Zhenguo Guo
Houjuan Yang
Anhui Province Key Laboratory of Value‐Added Catalytic Conversion and Reaction Engineering School of Chemistry and Chemical Engineering Hefei University of Technology Hefei 230009 P.R. China
Xi Huang
Yu Ning
Collaborative Innovation Center of Chemistry for Energy Materials, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Medical Oncology, Xiamen Key Laboratory of Antitumor Drug Transformation Research
Hao Luo
Jianhui Xie
Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering
Jianbo He
Anhui Province Key Laboratory of Value‐Added Catalytic Conversion and Reaction Engineering School of Chemistry and Chemical Engineering Hefei University of Technology Hefei 230009 P.R. China
Yingying Liu
Institute of Intelligent Machines, Hefei Institutes of Physical Science
Tai‐Chu Lau
Department of Chemistry City University of Hong Kong Kowloon Hong Kong 999077 P.R. China