Highly dispersed NiMo@rGO nanocomposite catalysts fabricated by a two-step hydrothermal method for hydrogen evolution
两步水热法合成高分散性的NiMo@rGO纳米颗粒析氢催化剂作者机构:School of Energy Power and Mechanical EngineeringNorth China Electric Power UniversityBeijing 102206China
出 版 物:《International Journal of Minerals,Metallurgy and Materials》 (矿物冶金与材料学报(英文版))
年 卷 期:2023年第30卷第12期
页 面:2432-2440页
核心收录:
学科分类:081702[工学-化学工艺] 081705[工学-工业催化] 0817[工学-化学工程与技术] 0806[工学-冶金工程] 08[工学] 0805[工学-材料科学与工程(可授工学、理学学位)] 080502[工学-材料学] 0703[理学-化学]
基 金:financially supported by the National Natural Science Foundation of China(No.22278125)
主 题:hydrogen evolution reaction NiMo nanocomposite reduced graphene oxide synergistic effect
摘 要:Exploring and designing a high-performance non-noble metal catalyst for hydrogen evolution reaction(HER)are crucial for the large-scale application of H2 by water ***,novel catalysts with NiMo nanoparticles decorated on reduced graphene oxide(NiMo@r GO)synthesized by a two-step hydrothermal method were *** characterization results showed that the prepared NiMo@r GO-1 had an irregular lamellar structure,and the NiMo nanoparticles were uniformly dispersed on the ***@rGO-1 exhibited outstanding HER performance in an alkaline environment and required only 93 and 180 mV overpotential for HER in 1.0 M KOH solution to obtain current densities of-10 and-50 mA·cm^(-2),*** tests showed that NiMo@rGO-1 had a certain operating stability for32 *** the same condition,the performance of NiMo@rGO-1 can be comparable with that of commercial Pt/C catalysts at high current *** synergistic effect between NiMo particles and lamellate graphene can remarkably promote charge transfer in electrocatalytic *** a result,NiMo@rGO-1 presented the advantages of high intrinsic activity,large specific surface area,and small electrical *** lamellar graphene played a role in dispersion to prevent the aggregation of *** prepared NiMo@rGO-1 can be used in anion exchange membrane water electrolysis to produce *** study provides a simple preparation method for efficient and low-cost water electrolysis to produce hydrogen in the future.