二硫化铼薄膜的制备及其电催化性能  

Preparation of Rhenium Disulfide Thin Film and Its Electrocatalytic Properties

作　　者：邬焘 胡芳仁[1] 郭俊宏[1] WU Tao;HU Fang-ren;GUO Jun-hong(School of Electronic and Photoelectric Engineering,Nanjing University of Posts and Telecommunications,Nanjing 210023,China)

机构地区：[1]南京邮电大学电子与光学工程学院,江苏南京210023

出　　处：《材料保护》2020年第10期5-8,29,共5页Materials Protection

基　　金：国家自然科学基金项目(61574080,61274121)资助。

摘　　要：近年来,新型的二维过渡金属硫族化合物(TMDs)材料一直是研究的热点,其中二硫化铼(ReS2)由于其独特的结构而具有许多独特的特征,其电催化析氢性能还未系统探究。研究了一种碲辅助化学气相沉积法,用于在基底上大规模合成高质量单层ReS2。利用X射线衍射(XRD)、拉曼光谱、扫描电子显微镜(SEM)分别对二硫化铼薄膜进行了表征,同时测试合成的二硫化铼薄膜的电催化析氢性能。结果表明:退火温度对合成的二硫化铼薄膜形貌有较小影响,主要表现在影响纳米片的团聚程度。二硫化铼产物具有一定的起始过电位和较小的塔菲尔斜率,这使其有希望成为用于实际应用的析氢反应(HER)催化剂。In recent years,new two-dimensional transition metal chalcogenide (TMDs) materials have been the focus of researches. Among them,rhenium disulfide (ReS2) has many unique characteristics owing to its unique structure,but its electrocatalytic hydrogen evolution performance has not been explored. In this paper,a tellurium-assisted chemical vapor deposition (CVD) method was studied and employed for large-scale synthesis of high-quality single-layer ReS2 on a substrate. Moreover,X-ray diffraction (XRD),Raman spectroscopy (Raman spectrum) and scanning electron microscopy (SEM) were used to characterize the rhenium disulfide film,and the the electrocatalytic hydrogen evolution performance of the synthesized rhenium disulfide film was tested. Results showed that the annealing temperature had little effects on the morphology of the synthesized rhenium disulfide film,which mainly effected the degree of agglomeration of the nanosheet. Furthermore,the rhenium disulfide product had a certain initial overpotential and a small Tafel slope,which made it promising as a hydrogen evolution reaction (HER) catalyst for practical applications.

关 键 词：ReS2二维材料 薄膜 化学气相沉积法 电催化 析氢反应 

分 类 号：TG174.44[金属学及工艺—金属表面处理]