Carbon-supported CeNCl as an efficient catalyst for CO_(2)cycloaddition  

作　　者：Li Liu Lingling Zhang Xiang Chu Baokang Geng Huilin Wang Zongxiang Li Xiao Wang Shuyan Song Hongjie Zhang 

机构地区：[1]School of Applied Chemistry and Engineering,University of Science and Technology of China,Hefei 230026,China [2]State Key Laboratory of Rare Earth Resource Utilization,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China [3]Sinocare Incorporation,Changsha 410221,China [4]Department of Chemistry,Tsinghua University,Beijing 100084,China

出　　处：《Nano Research》2025年第1期157-163,共7页纳米研究（英文版）

基　　金：supported by the financial aid from the National Key Research and Development Program of China(No.2021YFB3500700);the National Natural Science Foundation of China(Nos.22020102003,22025506,22271274 and U23A20140);Jilin Province Science and Technology Development Plan Project(No.20230101022JC);Hunan Province High-tech Industry Science and Technology Innovation Leading Plan(No.2022GK4021);funding from National Natural Science Foundation of China Outstanding Youth Science Foundation of China(Overseas).

摘　　要：The cycloaddition reaction of CO_(2)with epoxide not only effectively reduces the concentration of CO_(2)in the atmosphere,but also has excellent industrial application value and up to 100%atom utilization,but there are difficulties in separation and recovery of traditional homogeneous catalysts,harsh reaction conditions of traditional heterogeneous catalysts,and activation of CO_(2)molecules.In this paper,an easily synthesized heterogeneous catalyst CeNCl/C was used to catalyze the cycloaddition reaction of CO_(2)with styrene oxide,with a high yield of 92.7%,a high selectivity of 96.7%,a turnover numbers(TON)value of 349,and a good stability demonstrated in six cycle tests(equivalent to 216 h of testing).Through comprehensive studies,it was shown that CeNCl/C contains Lewis acid-base centers as active centers,which can effectively reduce the energy barrier required for ring opening of the reaction substrate,enhance the adsorption and activation of CO_(2),and promote the formation of intermediates,which led to the acquisition of excellent catalytic activity.

关 键 词：CO_(2)cycloaddition heterogeneous catalysis CeNCl Lewis acid/base 

分 类 号：O643.36[理学—物理化学]