Facile Synthesis of Nitrogen-Doped Graphene Aerogels for Electrode Materials in Supercapacitors

作     者：Yong Zhang Jiayi Zhu Hongbo Ren Yutie Bi Lin Zhang 

作者机构：Department of Physics University of Science and Technology of China Hefei Anhui 230026 China Joint Laboratory for Extreme Conditions Matter Properties Southwest University of Science and Technology and Research Center of Laser Fusion Mianyang Sichuan 621000 China School of National Defense and Techonology Southwest University of Science and Technology Mianyang Sichuan 621010 China Science and Technology on Plasma Physics Laboratory Research Center of Laser Fusion China Academy of Engineering Physics Mianyang Sichuan 621900 China 

出 版 物：《Chinese Journal of Chemistry》 (中国化学（英文版）)

年 卷 期：2017年第35卷第7期

页      面：1069-1078页

核心收录：

学科分类：080801[工学-电机与电器] 081704[工学-应用化学] 0808[工学-电气工程] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：We are grateful to Research Center of Laser Fusion  China Academy of Engineering Physics. This work was financially supported by the National Natural Science Foundation of China (No. 51502274)  the Research Fund for the Doctoral Program of Southwest University of Science and Technology (Nos. 13zx7124  15zx7137  16zx7142) and the Research Fund for Joint Laboratory for Extreme Conditions Matter Properties (Nos. 13zxjk04  14tdjk03) 

主　　题：mesoporous materials hydrothermal synthesis electrochemistry nitrogen-doped graphene aerogels,chitosan supercapacitors 

摘      要：Three-dimensional porous nitrogen-doped graphene aerogels （NGAs） were synthesized by using graphene oxide （GO） and chitosan （CS） via a self-assembly process by one-pot hydrothermal method. The morphology and struc- ture of the as-prepared materials were characterized by means of scanning electron microscopy, transmission elec- tron microscopy, X-ray diffraction, XPS spectroscopy, Raman spectroscopy, nitrogen adsorption/desorption meas- urement and Fourier transform infrared spectroscopy. The electrochemical performance of NGAs was studied by cyclic voltammetry, galvanostatic charge/discharge and impedance spectroscopy measurements. The microstructure, surface area and capacitance of NGAs could be facilely controlled by adding different amounts of chitosan. The prepared NGA-4 showed a specific capacitance of 148.0 F/g at the discharge current density of 0.5 A/g and also re- tained 95.3% of the initial capacitance after 5000 cycles at the scan rate of 10 mV/s. It provided a possible way to obtain graphene based materials with high surface area and capacitance.