Nitrogen and Phosphorus Dual-Doped Multilayer Graphene as Universal Anode for Full Carbon-Based Lithium and Potassium Ion Capacitors

作     者：Yuting Luan Rong Hu Yongzheng Fang Kai Zhu Kui Cheng Jun Yan Ke Ye Guiling Wang Dianxue Cao 

作者机构：Key Laboratory of Superlight Material and Surface Technology of Ministry of EducationCollege of Material Science and Chemical EngineeringHarbin Engineering University 

出 版 物：《Nano-Micro Letters》 (纳微快报（英文版）)

年 卷 期：2019年第11卷第2期

页      面：166-178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] 

基　　金：supported by National Natural Science Foundation of China(Nos.51672056 and 51702063) Natural Science Foundation of Heilongjiang(LC2018004) China Postdoctoral Science Foundation(2018M630340) the Fundamental Research Funds for the Central University(HEUCFD201732) 

主　　题：Arc discharge Graphene Heteroatom doping Lithium/potassium ion battery Lithium/potassium ion capacitor 

摘      要：Lithium/potassium ion capacitors(LICs/PICs) have been proposed to bridge the performance gap between high-energy batteries and high-power ***,their development is hindered by the choice,electrochemical performance,and preparation technique of the battery-type anode ***,a nitrogen and phosphorus dual-doped multilayer graphene(NPG) material is designed and synthesized through an arc discharge process,using low-cost graphite and solid nitrogen and phosphorus *** employed as the anode material,NPG exhibits high capacity,remarkable rate capability,and stable cycling performance in both lithium and potassium ion *** excellent electrochemical performance is ascribed to the synergistic effect of nitrogen and phosphorus doping,which enhances the electrochemical conductivity,provides a higher number of ion storage sites,and leads to increased interlayer *** carbon-based NPG‖LiPF6‖active carbon(AC) LICs and NPG‖KPF6‖AC PICs are assembled and show excellent electrochemical performance,with competitive energy and power *** work provides a route for the large-scale production of dual-doped graphene as a universal anode material for high-performance alkali ion batteries and capacitors.