摘要
二氧化锰(MnO2)作为一种半导体材料,具有理论比电容较高、储源丰富、价格低廉、清洁环保等优点,受到众多学者的青睐。MnO2晶体结构分为隧道结构、层状结构和网状结构三大类,常见晶型包括α、β、γ、λ、δ这5种,储能机理包括双电层电容和赝电容。介绍了纳米MnO2材料的主要制备方法,综述了改性MnO2复合电极材料的研究进展,对MnO2超级电容器电极材料未来的发展方向进行了展望。
Manganese dioxide(MnO2)as a semiconductor material,it has the advantages of higher theoretical than the capacitance,rich storage,low price,clean and environmental protection,which has been favored by many scholars.The MnO2 crystal structure contains three types of tunnel structure,layered structure and network structure,which common crystal forms major includingα,β,γ,λandδ.Energy storage mechanism of MnO2 includes double layer capacitor and tantalum capacitor.The main preparation methods of nano MnO2 materials were briefly introduced.From the perspective of modification,the research progress of MnO2 composite electrode materials was reviewed.Finally,the future development direction of MnO2 supercapacitor electrode materials was prospected.
作者
董洁
杨庆浩
卞洁鹏
Dong Jie;Yang Qinghao;Bian Jiepeng(School of Materials Science and Technology,Xi'an University of Science and Technology,Xi'an 710054)
出处
《化工新型材料》
CAS
CSCD
北大核心
2020年第1期63-67,共5页
New Chemical Materials
基金
国家自然科学基金资助项目(21204072)
陕西省重点科技创新团队资助项目(2014KCT-04)
陕西省重点研发计划(2017GY-133).
关键词
二氧化锰
超级电容器
制备方法
改性
manganese dioxide
supercapacitor
preparation method
modification
