Carbon Doping Triggered Efficient Electrochemical Hydrogen Evolution of Cross-Linked Porous Ru-MoO_(2) Via Solid-Phase Reaction Strategy
作者机构:The Green Catalysis Centerand College of ChemistryZhengzhou UniversityZhengzhou 450000China Henan Institute of Advanced TechnologyZhengzhou UniversityZhengzhou 450000China National Center of Nanoscience and TechnologyBeijing 100190China College of Chemistry and Chemical EngineeringHenan Polytechnic University2001 Century AvenueJiaozuo 454000China
出 版 物:《Energy & Environmental Materials》 (能源与环境材料(英文))
年 卷 期:2023年第6卷第1期
页 面:392-400页
核心收录:
学科分类:081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学]
基 金:This work was financially supported by the National Natural Science Foundation of China (52122308,21905253,51973200) the Natural Science Foundation of Henan (202300410372)
主 题:carbon doped hydrogen evolution reaction macro-meso-micropore MoO_(2) Ru solid-phase reaction
摘 要:The defect-free structure of Mo-based materials is a“double-edged sword,which endows the material with excellent stability,but limits its chemical versatility and application in electrochemical hydrogen evolution reaction(HER).Carbon doping engineering is an attractive strategy to effectively improve the performance of Mo-based catalyst and maintain their ***,we report a cross-linked porous carbon-doped MoO_(2)(C–MoO_(2))-based catalyst Ru/C–MoO_(2) for electrochemical HER,which is prepared by the convenient redox solid-phase reaction(SPR)of porous RuO_(2)/Mo_(2)C composite *** studies reveal that due to the presence of carbon atoms,the electronic structure of C–MoO_(2) has been properly adjusted,and the loaded small Ru nanoparticles provide a fast water dissociation rate and moderate H adsorption *** electrochemical studies under a pH-universal environment,Ru/C–MoO_(2) electrocatalyst exhibits a low overpotential at a current density of 10 mA cm^(-2) and has a low Tafel ***,Ru/C-MoO_(2) has excellent stability for more than 100 h at an initial current density of 100 mA cm^(-2).