Abstract：Electrode material of MnO2 microspheres were synthesized via a simple liquid phase co-precipitation method by using K2S2O8 and MnSO4·H2O as raw material. The products were characterized by XRD and SEM. Results show that the α-MnO2 in tetragonal system with obvious nanothorn structure are obtained under the conditions of pH value of l，reaction temperature of 60 ℃ and reaction time of 22 h. The obtained α-MnO2 was then applied as the electrode material for supercapacitors， with 6 mol/L KOH as electrolyte solution， the electrochemical characterization was carried out using galvanostatic charge-discharge cycling， cyclic voltammetry and impedance spectroscopy. Its specific capacitance is 156.0 F/g at the scanning rate of 5 mV/s.
收稿日期: 2016-01-20
出版日期: 2016-12-15
基金资助:湖南省教育厅科研资助项目
通讯作者:
李哲
E-mail: 779370940@qq.com
引用本文:
李 哲，李 涛. α型二氧化锰的制备及电化学性能研究[J]. , 2016, 26(06): 15-19.
LI Zhe， LI Tao. Preparation and electrochemical properties of α-MnO2. , 2016, 26(06): 15-19.
2016, Vol. 26 
