非水热法制备CN-NiS催化剂及其产氢性能研究  

Non-hydrothermal Method for Preparation of Nickel Sulfide Loaded Carbon Nanotubes for Catalytic Hydrogen Evolution

作　　者：于姗[1,2] 欧阳博[1] 李治军[1] 孟庆元[1] 冯科[1] 陈彬[1] 佟振合[1] 吴骊珠[1] 

机构地区：[1]中国科学院理化技术研究所,北京100190 [2]中国科学院大学,北京100049

出　　处：《影像科学与光化学》2015年第2期117-125,共9页Imaging Science and Photochemistry

摘　　要：本文通过将硫化聚苯胺纳米管和镍盐混合煅烧,制得CN-NiS催化剂。通过X射线固体粉末衍射(XRD)、透射电子显微镜(TEM)和光电子能谱(XPS)表征,证实了CN-NiS催化剂的组成、结构及形貌特征。使用荧光素和三乙胺分别作为光敏单元和电子牺牲体,最优条件下,基于CN-NiS的光催化体系产氢效率可达18.6mmol·g-1·h-1(λ=450nm)。其产氢活性明显优于前驱体聚苯胺、硫化聚苯胺或镍盐,说明CN-NiS材料是一类较好的产氢催化剂。In this paper,a new material containing nickel sulfide,CN-NiS,was obtained by mixing sulfurpolyaniline nanotubes with nickel salt and calcination.TEM,XRD and XPS were used to investigate the composition,strucuture and morphology of CN-NiS.Using fluorescin and triethylamine as the photosensitiser and electron donor,a hydrogen evolution efficiency of 18.6mmol·g-1·h-1 based on CN-NiS could be obtained under optimal conditions.With comparison to polyaniline,sulfur-polyaniline or nickel salt,CN-NiS is a better hydrogen evolution catalyst,indicating the importance of NiS for catalytic hydrogen evolution.

关 键 词：NIS 光催化产氢 荧光素 三乙胺 

分 类 号：O643.36[理学—物理化学]