高等学校化学学报2017，Vol.38Issue(8)：1303-1308,6.DOI:10.7503/cjcu20170122
基于ZIFs合成的中空双金属(Zn,Co)S纳米晶及其赝电容性质研究
Facile Synthesis of ZIFs-derived Hollow Bimetal (Zn,Co)S Nanocrystals for Supercapacitors
摘要
Abstract
A simple two-step method was introduced to synthesize uniform and hollow (Zn,Co)S nanostructures.Firstly, the bimetal compound ZIF-Zn,Co(ZIF=zeolitic imidazolate frameworks) with metal ions(Zn2+ and Co2+) and ligand(2-methylimidazole) was obtained using deionized water as solvent, hexadecyltrimethylammonium bromide(CTAB) as capping agent under stirring at room temperature.Secondy, hollow (Zn,Co)S nanostructures were synthesized by selecting ZIF-Zn,Co as self-sacrificial template and adding thioacetamide(TAA) as sulfate source under the microwave-assisted heating condition.The electrochemical measurements show that the specific capacitance of the as-made hollow (Zn,Co)S nanostructures was 423.3 F/g at current density of 3 mA/cm2 and 57% capacitance remains after 2000 cycles at a current density of 10 mA/cm2.With the advantages of unique properties, such as high surface area and good electrochemical performance, the as-made hollow (Zn,Co)S nanostructures have great potential as electrode material for supercapacitors.关键词
沸石咪唑酯骨架材料/双金属/空心纳米结构/硫化物/超级电容器Key words
Zeolitic imidazolate frameworks(ZIFs)/Bimetal/Hollow nanostructure/Sulfide/Supercapacitor分类
化学化工引用本文复制引用
成巍,陈彩玲,于影,李春光,高路,施展..基于ZIFs合成的中空双金属(Zn,Co)S纳米晶及其赝电容性质研究[J].高等学校化学学报,2017,38(8):1303-1308,6.基金项目
国家自然科学基金(批准号: 21371069)资助.Supported by the National Natural Science Foundation of China(No.21371069). （批准号: 21371069）
