文献类型：期刊文献

英文题名：Al-doped α-MnO2 for high mass-loading pseudocapacitor with excellent cycling stability

作者：Hu, Zhimi[1,2];Xiao, Xu[1,2];Chen, Chi[1,2];Li, Tianqi[1,2];Huang, Liang[1,2];Zhang, Chuanfang[3];Su, Jun[1,2];Miao, Ling[1,2];Jiang, Jianjun[1,2];Zhang, Yanrong[4];Zhou, Jun[1,2]

机构：[1]Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Peoples R China;[2]Huazhong Univ Sci & Technol, Sch Opt & Elect Informat, Wuhan 430074, Peoples R China;[3]E China Univ Sci & Technol, Dept Chem Engn, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[4]Huazhong Univ Sci & Technol, Environm Sci Res Inst, Wuhan 430074, Peoples R China

年份：2015

卷号：11

起止页码：226

外文期刊名：NANO ENERGY

收录：;EI(收录号：20145200355268);WOS:【SCI-EXPANDED(收录号:WOS:000351194300027)】；

基金：This work was financially supported by the National Natural Science Foundation of China (51322210, 51302097, 61434001), a Foundation for the Author of National Excellent Doctoral Dissertation of PR China (201035), the Fundamental Research Funds for the Central Universities (HUST: 2012YQ025, 2013YQ049, 2013TS160), the China Postdoctoral Science Foundation (0106187050), the International Science & Technology Cooperation Program of China (no. 2013DFG50150) and Director Fund of WNLO. The authors also thank to the facility support of the Center for Nanoscale Characterization Et Devices, WNLO-HUST and the Analysis and Testing Center of Huazhong University of Science and Technology. The authors thank National Supercomputer Center in Jinan, China for support.

语种：英文

外文关键词：alpha-MnO2; Doping; Pseudocapacitor; Hydrothermal

摘要：The Al-doped alpha-MnO2 was prepared by hydrothermal method could promote the conductivity and improve the capacitance, which demonstrated by theoretical calculation and experiments. The Al doped alpha-MnO2 electrode with a specific capacitance of about 213 F g(-1) and 146 F cm(-3) under the high mass loading of similar to 4 mg cm(-2) had excellent cycling performance that of similar to 91% maintained after 15,000 cycles. In addition, different doping amount of Al as contrast were discussed, indicating that through modification and optimization of the chemical composition of the alpha-MnO2 based electrode material by Al doping could greatly improve the electrochemical behavior and to achieve higher specific capacitance. Also, we believed that the notable cycling Life and high mass loading of Al doped alpha-MnO2 electrode material was beneficial to the application of supercapacitors. As an energy storage device, a high energy density about 2.42 mW h cm(-3) with power density of 5.72 W cm(-3) could be achieved. (C) 2014 Elsevier Ltd. All rights reserved.