纳米四氧化三锰温和水相合成及其电容性能  

Mild Aqueous Synthesis and the Capacitance Performance of Nano Manganous Manganic Oxide

作　　者：丹媛媛[1] 张丽[1] 曹春纪 陈景晶 

机构地区：[1]江苏科技大学生物与化学工程学院,镇江212003

出　　处：《应用化学》2014年第12期1453-1457,共5页Chinese Journal of Applied Chemistry

基　　金：江苏省自然基金资助项目(BK20130460)~~

摘　　要：采用温和水相合成法制备出纳米Mn3O4,采用X射线衍射（XRD）、电子能谱（XPS）及透射电子显微镜（TEM）等技术手段对其结构、组成与形貌进行了研究分析;并利用循环伏安（CV）及充放电等电化学测试研究了纳米Mn3O4的电容性能。结果表明,本实验所制备的纳米Mn3O4为四方相γ-Mn3O4,其粒径大小为40~60 nm;该材料具有良好的电容性能,其比电容值可达270 F/g,且经1000次循环后,其比电容值可达原来的85%。A simple approach to the synthesis of highly dispersed nano-Mn3O4 by mild aqueous synthesis method at low temperatures （90 ℃） is reported. The structure, composition and morphology of the material were investigated by X-ray diffraction, X-ray photoelectron spectroscopy and transmission electron microscope. The capacitance performance of the composites was explained by cyclic voltammetry and charge-discharge tests. The results show that the sample is tetragonal T-Mn3O4 with 40 -60 nm in diameter. The nano-Mn3O4 material has a good capacitance performance. The specific capacitance value of the material is 270 F/g. Furthermore, the specific capacitance value remains 85% of its initial value after 1000 charge-discharge circles.

关 键 词：纳米四氧化三锰 电容 均相合成 

分 类 号：O646[理学—物理化学]