Sub-nanopores-containing N,O-codoped porous carbon from molecular-scale networked polymer hydrogel for solid-state supercapacitor

作     者：Meiling Wang Tianyuan Zhang Mingzhu Cui Weifeng Liu Xuguang Liu Jianwei Zhao Jiadong Zhou Meiling Wang;Tianyuan Zhang;Mingzhu Cui;Weifeng Liu;Xuguang Liu;Jianwei Zhao;Jiadong Zhou

作者机构：Institute of New Carbon MaterialsTaiyuan University of TechnologyTaiyuan 030024China College of Material and Textile EngineeringJiaxing UniversityJiaxing 314001China Department of ChemistryUniversity of WashingtonSeattleWashington 98195United States School of Materials Science and EngineeringNanyang Technological UniversitySingapore 639798Singapore Institute of Crystalline MaterialsShanxi UniversityTaiyuan 030006China 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：2021年第32卷第3期

页      面：1111-1116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] 0703[理学-化学] 

基　　金：financial support from National Natural Science Foundation of China(Nos.51902222,51603142,U1610255) Key Laboratory of Yarn Materials Forming and Composite Processing Technology,Zhejiang Province(No.MTC2019-03) Scientific and Technological Innovation Programs of Higher Education Institutions in Shanxi(Nos.2019L0164 and 2019L0255) the Shanxi Provincial Key Innovative Research Team in Science and Technology(Nos.2015013002-10 and 201605D131045-10) Key R&D Program of Shanxi Province(International Cooperation,No.201903D421077) 

主　　题：Hydrogel Sub-nanopores Carbonization-activation Porous carbon Heteroatomdoping Solid-state supercapacitor 

摘      要：A template-free carbonization-activation route is developed to fabricate sub-nanopore-containing porous carbon by using a novel polypyrrole(PPy)hydrogel as a *** design of PPy hydrogel precursor containing molecular-scale grids(diameter~2.0 nm)allows for homogeneous N,O-codoping into the porous carbon scaffold during the pyrolysis process.A subsequent activation step produces activated porous carbons(APCs)with tailored pore structures,which renders the APCs abundant subnanopores on their surface to increase the specific capacitance as extra capacitance *** with large specific surface area and abundant heteroatoms,the optimized APC4/1 displays excellent specific capacitance of 379 F/g for liquid-state supercapacitor and 230 F/g for solid-state *** solid-state supercapacitor shows a high energy density of 22.99 Wh/kg at power density of 420 W/kg,which is higher than most reported porous carbon materials and satisfy the urgent requirements of elementary power source for electric ***,this method can be easily modified to fabricate sub-nanopore-containing porous carbons with preferred structures and compositions for many applications.