CoS_(2)nanowires supported graphdiyne for highly efficient hydrogen evolution reaction

作     者：Wangjing Xie Kang Liu Guodong Shi Xinliang Fu Xiaojie Chen Zixiong Fan Min Liu Mingjian Yuan Mei Wang Wangjing Xie;Kang Liu;Guodong Shi;Xinliang Fu;Xiaojie Chen;Zixiong Fan;Min Liu;Mingjian Yuan;Mei Wang

作者机构：Key Laboratory of Marine Chemistry Theory and Technology(Ministry of Education)College of Chemistry and Chemical EngineeringOcean University of ChinaQingdao 266100China Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education)Renewable Energy Conversion and Storage Center(RECAST)College of ChemistryNankai University300071 TianjinChina School of Physics and ElectronicsState Key Laboratory of Powder MetallurgyCentral South UniversityChangsha 410083China College of ScienceHenan University of TechnologyZhengzhou 450001China 

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

年 卷 期：2021年第30卷第9期

页      面：272-278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(No.51972175) the Natural Science Foundation of Tianjin(17JCYBJC40900,18YFZCGX00580) The National Natural Science Foundation of China(Grant No.21872174 and U1932148) the International S&T Cooperation Program of China(2017YFE0127800) the Hundred Youth Talents Program of Hunan.National Natural Science Foundation of China(No.21601171) the Natural Science Foundation of Shandong Province(No.ZR2016BB08) 

主　　题：Graphdiyne Electrocatalysts Hydrogen evolution reaction DFT simulation 2D carbon material 

摘      要：Transition metal sulfides are an important category for hydrogen evolution reaction(HER).However,only few edge unsaturated sulfurs functionalize as catalytic sites,which has dramatically limited the catalytic activity and *** this work,planar unsaturated sulfurs in(211)plane of the CoS_(2)nanowires have been successfully activated through constructing Graphdiyne-CoS_(2)heterojunction *** corresponding electrons transfer energy barriers for these planar unsaturated sulfurs have been significantly diminished,which are induced by the synergetic effects of the sp~1 hybridized carbons and unsaturated planar *** addition,DFT simulations reveal the synergetic effects of the sp~1 hybridized carbons and unsaturated planar sulfurs can promote electron transfer kinetics of the key step,VolmerHeyrovsky step,of the *** expected,the Graphdiyne-CoS_(2)heterojunction nanocomposites exhibit superior HER catalytic performance with low overpotential of 97 mV at 10 mA cm^(-2),and the Tafel slope of 56 mV dec^(-1).Furthermore,the heterojunction shows outstanding stability as well due to the pr tection of the Graphdiyne(GDY).The approach thus paves the way for the further efficient transition metal disulfides catalyst manufactures.