首页|Construction of Synergistic Co and Cu Diatomic Sites for Enhanced Higher Alcohol Synthesis

Construction of Synergistic Co and Cu Diatomic Sites for Enhanced Higher Alcohol Synthesis

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Higher alcohol synthesis(HAS)from syngas could efficiently alleviate the dependence on the traditional fossil resources.However,it is still challenging to con-struct high-performance HAS catalysts with satisfying selectivity,space-time yield(STY),and stability.Here-in,we designed a diatomic catalyst by anchoring Co and Cu sites onto a hierarchical porous N-doped car-bon matrix(Co/Cu-N-C).The Co/Cu-N-C is efficient for HAS and is among the best catalysts reported.With a CO conversion of 81.7％,C2+OH selectivity could reach 58.5％with an outstanding C2+OH STY of 851.8 mg/g.h.We found that the N4-Co1 and Cu1-N4 showed an excellent synergistic effect.The adsorption of CO occurred on the Co site,and the surrounding nitrogen sites served as a hydrogen reservoir for the CO reduction reactions to form CHxCo.Meanwhile,the Cu sites stabilized a CHOCu species to interact with CHxCo,facilitating a barrier-free formation of C2 spe-cies,which is responsible for the high selectivity of higher alcohols.

dual atomic catalystsynergistic effectheterogeneous catalysiscarbon materialhigher alco-hol synthesis

Gaofeng Chen、Olga A.Syzgantseva、Maria A.Syzgantseva、Shuliang Yang、Guihua Yan、Li Peng、Changyan Cao、Wenxing Chen、Zhiwei Wang、Fengjuan Qin、Tingzhou Lei、Xianhai Zeng、Lu Lin、Weiguo Song、Buxing Han

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College of Energy,Xiamen University,Xiamen 361102

Department of Chemistry,Lomonosov Moscow State University,Moscow 119991

Fujian Engineering and Research Center of Clean and High-Valued Technologies for Biomass

Xiamen Key Laboratory of Clean and High-Valued Utilization for Biomass,Xiamen 361102

College of Chemistry and Chemical Engineering,Xiamen University,Xiamen 361005

Beijing National Laboratory for Molecular Science,CAS Research/Education Center for Excellence in Molecular Sciences,Institute of Chemistry,Chinese Academy of Sciences,Beijing 100190

University of Chinese Academy of Sciences,Beijing 100049

Energy &Catalysis Center,School of Materials Science and Engineering,Beijing Institute of Technology,Beijing 100081

School of Environmental Engineering,Henan University of Technology,Zhengzhou 450001

Institute of Urban and Rural Mining,Changzhou University,Changzhou 213164

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国家重点研发计划国家重点研发计划国家重点研发计划福建省自然科学基金Nanqiang Young Topnotch Talent Fellowship from Xiamen University

2019YFB15039032019YFB15039042018YFB15014032019J06005

2023

10.31635/ccschem.022.202201930

中国化学会会刊(英文)

中国化学会会刊(英文)

CSCD
ISSN：
年,卷(期)：2023.5(4)
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