FeS@NiMoO_(4)异质结构筑及电催化析氢性能研究  

Exploring electrocatalytic hydrogen evolution performance of FeS@NiMoO_(4) heterojunction

作　　者：朱得智 徐京城[1] ZHU Dezhi;XU Jingcheng(School of Materials and Chemistry,University of Shanghai for Science and Technology,Shanghai 200093,China)

机构地区：[1]上海理工大学材料与化学学院,上海200093

出　　处：《有色金属材料与工程》2024年第6期60-67,74,共9页Nonferrous Metal Materials and Engineering

基　　金：东方科软(北京)科技有限公司横向项目(H-2023-369-039)。

摘　　要：通过两步水热法成功构建FeS@NiMoO_(4)异质结构电催化剂。用FeS纳米片修饰NiMoO_(4)纳米棒时能提供更大的比表面积,暴露更多的活性位点。FeS@NiMoO_(4)形成的异质界面,提供快速的电荷传输通道,从而实现优异的电催化析氢性能。利用X射线衍射仪、X射线光电子能谱仪、扫描电子显微镜、透射电子显微镜对材料的组成和形貌进行表征,通过电化学工作站进行电化学性能表征。10 mA/cm^(2)电流密度下,FeS@NiMoO_(4)的析氢过电势为151 mV,Tafel斜率为110 mV/dec,并表现出良好的稳定性,具有优异的电催化析氢性能。A FeS@NiMoO_(4) heterostructure electrocatalyst was successfully fabricated using a two-step hydrothermal method.NiMoO_(4) nanorods modified by FeS nanosheets can provide a larger specific surface area,exposing more active sites.The hetero-interface formed by FeS@NiMoO_(4) offers fast charge transfer channels,thereby achieving excellent electrocatalytic hydrogen evolution performance.The composition and morphology of the materials were characterized by X-ray diffraction,X-ray photoelectron spectroscopy,scanning electron microscopy,and transmission electron microscopy.The electrochemical properties were characterized using an electrochemical workstation.At a current density of 10 mA/cm²,the FeS@NiMoO_(4) exhibits a hydrogen evolution overpotential of 151 mV,a Tafel slope of 110 mV/dec,and good stability,demonstrating outstanding electrocatalytic hydrogen evolution performance.

关 键 词：异质结构 电催化析氢 FeS@NiMoO_(4) 

分 类 号：TQ116.2[化学工程—无机化工]