Constructing 3D interweaved MXene/graphitic carbon nitride nanosheets/graphene nanoarchitectures for promoted electrocatalytic hydrogen evolution

作     者：Haiyan He Yuxian Chen Cuizhen Yang Lu Yang Quanguo Jiang Huajie Huang Haiyan He;Yuxian Chen;Cuizhen Yang;Lu Yang;Quanguo Jiang;Huajie Huang

作者机构：College of Mechanics and MaterialsHohai UniversityNanjing 210098JiangsuChina Institute of Ocean and Offshore EngineeringHohai UniversityNantong 226300JiangsuChina 

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

年 卷 期：2022年第31卷第4期

页      面：483-491页

核心收录：

学科分类：081702[工学-化学工艺] 0808[工学-电气工程] 081705[工学-工业催化] 07[理学] 08[工学] 070205[理学-凝聚态物理] 0820[工学-石油与天然气工程] 0817[工学-化学工程与技术] 0807[工学-动力工程及工程热物理] 080501[工学-材料物理与化学] 0827[工学-核科学与技术] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0702[理学-物理学] 

基　　金：financially supported by the National Natural Science Foundation of China(51802077) the Fundamental Research Funds for the Central Universities(B200202129 and B210202093) the Nantong Science and Technology Bureau(JC2019086 and JC2019003) 

主　　题：MXene Carbon nitride Graphene Electrocatalysts Hydrogen evolution 

摘      要：The technique of electrocatalytic hydrogen evolution reaction (HER) represents a development trend of clean energy generation and conversion,while the electrode catalysts are bound to be the core unit in the electrochemical HER ***,we demonstrate a bottom-up approach to the construction of three-dimensional (3D) interconnected ternary nanoarchitecture originated from Ti_(3)C_(2)T_(x)MXene,graphitic carbon nitride nanosheets and graphene (MX/CN/RGO) through a convenient co-assembly *** virtue of the 3D porous frameworks with ultrathin walls,large specific surface areas,optimized electronic structures,high electric conductivity,the resulting MX/CN/RGO nanoarchitecture expresses an exceptional HER performance with a low onset potential of only 38 m V,a small Tafel slop of 76 m V dec^(-1) as well as long lifespan,all of which are more competitive than those of the bare Ti_(3)C_(2)T_(x),g-C_(3)N_(4),graphene as well as binary MX/RGO and CN/RGO *** simulations further verify that the ternary MX/CN/RGO nanoarchitecture with ameliorative band structure is able to facilitate the electron transport and meanwhile offer multistage catalytically active sites,thereby guaranteeing rapid HER kinetics during the electrocatalytic process.