Engineering heterostructure and crystallinity of Ru/RuS_(2) nanoparticle composited with N-doped graphene as electrocatalysts for alkaline hydrogen evolution

作     者：Xuyun Gao Bo Li Xuzhuo Sun Baofan Wu Yanping Hu Zhichao Ning Jun Li Ning Wang Xuyun Gao;Bo Li;Xuzhuo Sun;Baofan Wu;Yanping Hu;Zhichao Ning;Jun Li;Ning Wang

作者机构：College of Chemistry and Chemical EngineeringHenan University of TechnologyZhengzhou 450001China Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of EducationCollege of Chemistry&Materials ScienceNorthwest UniversityXi'an 710069China 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：2021年第32卷第11期

页      面：3591-3595页

核心收录：

学科分类：081702[工学-化学工艺] 081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：supported by National Natural Science Foundation of China(Nos.21773184 and 21671158) Key Science and Technology Project of Henan(No.202102210238) Natural Science Foundation of Henan(No.212300410339) Cultivation Program for Young Backbone Teachers in Henan University of Technology(Nos.21420108 and 21420073) 

主　　题：Low crystallinity Ru/RuS_(2)heterostructure Graphene Electrocatalytic hydrogen evolution Alkaline solution 

摘      要：Crystalline engineering and heterostructure have attracted much attention as effective strategies to improve the electrocatalytic activity for hydrogen evolution reaction(HER).In this study,a new heterostructure catalyst(Ru/RuS_(2)@N-rGO)with low crystallinity was fabricated by a simple and low-temperature method for HER in alkaline solution,applying the Na_(2)SO_(4)as S source and polypyrrole as N *** through the controllable crystalline engineering and composition ratio of Ru and RuS_(2),the Ru/RuS_(2)@N-rGO heterocatalyst at the calcining 500°C revealed highly efficient HER activity with overpotential 18 mV at a current density 10 mA/cm^(2)and remarkable stability for 24 h in 1.0 mol/L *** work provides a facile and effective method in designing advanced electrocatalysts for HER in the alkaline electrolytes by synergistically structural and component modulations.