CoCo-PBA/tetrabutylammonium bromide as highly efficient catalyst for CO_(2) and epoxides coupling reaction under mild conditions  

作　　者：Munir Ullah Khan Safir Ullah Khan Jiraya Kiriratnikom Shah Zareen Xinghong Zhang 

机构地区：[1]MOE Key Laboratory of Macromolecular Synthesis and Functionalization,Department of Polymer Science and Engineering,Zhejiang University,Hangzhou 310027,China [2]Hefei National Laboratory for Physical Science at the Microscale,School of Life Sciences,University of Science and Technology of China,Hefei 230027,China [3]National Synchrotron Radiation Laboratory,Department of Chemical Physics and Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes,University of Science and Technology of China,Hefei 230029,China

出　　处：《Chinese Chemical Letters》2022年第2期1081-1086,共6页中国化学快报（英文版）

基　　金：financial support of the National Natural Science Foundation of China (Nos.21774108 and 51973190)。

摘　　要：The development of effective and low-energy-consumption catalysts for CO_(2)conversion into high-value-added products by constructing versatile active sites on the surface of heterogeneous compounds is an ur-gent and challenging task.In this study,a stable and well-defined heterogeneous cobalt hexacyanocobal-tate(Co_(3)[Co(CN)_(6)]_(2)),typical cobalt Prussian blue analogue(CoCo-PBA)modified with tetrabutylammo-nium bromide(TBAB),is proven to be the superior catalyst for CO_(2)and epoxide coupling to produce cyclic carbonates with>99%yield under mild reaction conditions(1.0 MPa,65℃).Based on a series of characterizations,it is revealed that the CoCo-PBA structure can maintain relatively high thermal and chemical stability.Recycling experiments exhibited that the CoCo-PBA system could retain 98%of the original activity after six reaction rounds.The CoCo-PBA/TBAB catalytic system was also highly active for coupling CO_(2)with other industrial-grade epoxides.These results show the Co Co-PBA catalytic system potential flexibility and the generality of the catalyst preparation strategy.

关 键 词：CO_(2)conversion Cyclic carbonates Prussian blue analogue Heterogeneous catalysis Co_(3)[Co(CN)_(6)]_(2) 

分 类 号：O621.251[理学—有机化学] O643.36[理学—化学]