Facile Synthesis of Layered Sodium Manganese Oxide for Application in Asymmetric Supercapacitor

作     者：LIU Xu TENG Teng GU Lei-Xiang GE Li-Chao HE Wen LIAO Hui-Yong CHE Yi-Jun LIANG Chong-Yao DAN Yuan-Yuan CHEN Li-Zhuang 刘旭;滕腾;顾雷香;葛骊超;何文;廖慧勇;车毅裙;梁崇耀;丹媛媛;陈立庄

作者机构：School of Environmental and Chemical EngineeringJiangsu University of Science and TechnologyZhenjiang 212003China Marine Equipment and Technology InstituteJiangsu University of Science and TechnologyZhenjiangJiangsu 212003China 

出 版 物：《Chinese Journal of Structural Chemistry》 (结构化学（英文）)

年 卷 期：2020年第39卷第4期

页      面：756-764页

核心收录：

学科分类：081702[工学-化学工艺] 080801[工学-电机与电器] 0808[工学-电气工程] 08[工学] 0817[工学-化学工程与技术] 

主　　题：layered sodium manganese oxides asymmetric supercapacitor electrochemical performance 

摘      要：Layered sodium manganese oxides(LSMOs),with two-dimensional channels for ion diffusion,have been regarded as the promising electrode materials in the application of asymmetric supercapacitors(ASCs).In this work,the layered Na0.5Mn2O4·1.5H2O was synthesized through a facile hydrothermal method by controlling the molar ratio of sodium and *** the molar ratio of sodium to manganese is 3:1,Na0.5Mn2O4·1.5H2O has shown the best capacitance of 369 F/g with current density of 0.5 A/g,and maintained a capacitance of 265 F/g after 2000 *** asymmetric supercapacitor consists of the sodium manages oxides as the positive electrode and active carbon(AC)as the negative electrode in 1 mol/L Na2SO4 *** voltage of the asymmetric supercapacitor has been expanded to 0~2 V with an energy density of 10.13 Wh/kg at a power density of 500 W/kg based on the total weight of both active electrode materials when the mass ratio of AC to Na0.5Mn2O4·1.5H2O was 3:1.