纳米WO_3低温水相合成及其电容性能  

Low temperature aqueous phase synthesis and the capacitance performance of nano WO_3

作　　者：陈立庄[1] 张丽[1] 孙园园[1] 卢晨[1] 陈进[1] 陈景晶 丹媛媛[1] 

机构地区：[1]江苏科技大学环境与化学工程学院,镇江212018

出　　处：《江苏科技大学学报（自然科学版）》2016年第5期503-507,共5页Journal of Jiangsu University of Science and Technology:Natural Science Edition

基　　金：国家自然科学基金资助项目(51502117);江苏省自然科学基金资助项目(BK20130460)

摘　　要：采用低温水相沉淀法制备得到WO_3纳米片,通过X射线衍射法(XRD)、扫描电子显微镜(SEM)、热重分析法(TG)和红外光谱法(IR spectra)等分析方法对其结构、组成及形貌进行测试表征;并通过循环伏安测试(CV)及恒流充放电测试等电化学测试,研究了WO_3纳米片的电容性能.测试结果表明:本实验所制备的尺寸为300 nm×300 nm×40 nm的WO_3纳米片;其比电容值可达217 F·g^(-1),并具有良好的循环寿命.We report a simple approach to synthesize nano-WO_3 by aqueous phase synthesis method at low temperature（ 90oC）. The structure,composition and morphology of the material were investigated by X-ray diffraction（ XRD）,scanning electron microscope（ SEM）,thermogravimetric analysis（ TG）,and infrared spectroscopy（ IR spectra）. The capacitance performance of the composites was explained by cyclic voltammetry（ CV）and charge-discharge tests. The results demonstrate that the sample is WO_3nano-sheet with a diameter of 300 nm and a thickness of about 40 nm. The specific capacitance of the material is up to 217 F·g^（-1）. Furthermore,the material has a desired circle lifetime.

关 键 词：纳米三氧化钨 电容 均相合成 

分 类 号：O646[理学—物理化学]