Defect engineered electrocatalysts for C-N coupling reactions toward urea synthesis  

作　　者：Shengkai Li Yuqin Zou Chen Chen Shuangyin Wang Zhao-Qing Liu 

机构地区：[1]Guangzhou Key Laboratory for Clean Energy and Materials/Key Laboratory for Water Quality and Conservation of the Pearl River Delta,Ministry of Education,Guangzhou University,Guangzhou 510006,China [2]State Key Laboratory of Chemo/Bio-Sensing and Chemometrics,College of Chemistry and Chemical Engineering,Advanced Catalytic Engineering Research Center of the Ministry of Education,Hunan University,Changsha 410082,China

出　　处：《Chinese Chemical Letters》2024年第8期7-14,共8页中国化学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.22278094,22209029);Outstanding Youth Project of Guangdong Natural Science Foundation(No.2020B1515020028);Guangdong Natural Science Foundation(No.2022A1515011775);University Innovation Team Scientific Research Project of Guangzhou Education Bureau(No.202235246);China Postdoctoral Science Foundation(No.2023M730760).

摘　　要：Urea is extensively used in agriculture and chemical industry,and it is produced on an industrial scale from CO_(2)and Haber-Bosch NH_(3)under relatively high temperature and high pressure conditions,which demands high energy input and generates masses of carbon footprint.The conversion of CO_(2)and N sources(such as NO_(2)^(−),NO_(3)^(−),and N_(2))through electrocatalytic reactions under ambient conditions is a promising alternative to realize efficient urea synthesis.Of note,the design of electrocatalyst is one of the key factors that can improve the efficiency and selectivity of C-N coupling reactions.Defect engineer-ing is an intriguing strategy for regulating the electronic structure and charge density of electrocatalysts,which endows electrocatalysts with excellent physicochemical properties and optimized adsorption en-ergy of the reaction intermediates to reduce the kinetic barriers.In this minireview,recent advances of defect engineered electrocatalysts in urea electrosynthesis from CO_(2)and various N reactants are firstly introduced.Mechanistic discussions of C-N coupling in these advances are presented,with the aim of directing future investigations on improving the urea yield.Finally,the prospects and challenges of de-fect engineered electrocatalysts for urea synthesis are discussed.This overview is expected to provide in-depth understanding of structure-reactivity relationship and shed light on future electrocatalytic C-N coupling reactions.

关 键 词：ELECTROCATALYSIS Defective electrocatalyst Co-reduction C-N coupling Urea synthesis 

分 类 号：TQ426[化学工程] TQ441.41