Surface modification of CeO_(2-x) nanorods with Sn doping for enhanced nitrogen electroreduction

作     者：Yuhang Xiao Xiaohong Tan Yingying Guo Jianpo Chen Weidong He Hao Cui Chengxin Wang Yuhang Xiao;Xiaohong Tan;Yingying Guo;Jianpo Chen;Weidong He;Hao Cui;Chengxin Wang

作者机构：School of Materials Science and EngineeringSun Yat-sen UniversityGuangzhou 510275GuangdongChina The Key Laboratory of Low-Carbon Chemistry&Energy Conservation of Guangdong ProvinceSun Yat-sen UniversityGuangzhou 510275GuangdongChina 

出 版 物：《Journal of Energy Chemistry》 (能源化学（英文版）)

年 卷 期：2023年第87卷第12期

页      面：400-407,I0011页

核心收录：

学科分类：081702[工学-化学工艺] 081705[工学-工业催化] 07[理学] 070205[理学-凝聚态物理] 08[工学] 0817[工学-化学工程与技术] 080501[工学-材料物理与化学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：financially supported by the National Natural Science Foundation of China (51972349 and 91963210) the Natural Science Foundation of Guangdong Province (2022A1515011596) the Key Research and Development Program of Guangdong Province (2020B0101690001) 

主　　题：Ceria-based materials Nitrogen reduction reaction Sn-doping Surface modification Electrocatalysis 

摘      要：While the electrochemical nitrogen reduction reaction(NRR) represents a prospective blueprint for environmentally renewable ammonia generation,it has yet to overcome the limitations of weak activity and inferior *** this regard,surface modification tactic was constructed to markedly enhance the activity and selectivity via introducing Sn atoms into the surface of defective cerium oxide(denoted as Sn-CeO_(2-x)) as the active and robust electrocatalyst for NRR under benign *** introduction of Sn atoms in CeO_(2-x)can not only inhibit the HER activity of the catalyst but also modulate the electronic structure of ceria and optimize N-Ce interaction,thus enhancing NRR activity and *** all previous CeO_(2)-based NRR catalysts,this catalyst has demonstrated an ammonia yield rate of 41.1 μg mg_(cat)^(-1) h^(-1) and an exceptional Faradic efficiency of 35.3%.This work presents a viable approach for the development of advanced NRR electrocatalysts.