Bifunctional 3D n-doped porous carbon materials derived from paper towel for oxygen reduction reaction and supercapacitor

作     者：Xinyu Gao Xueyan Li Zhuang Kong Guozheng Xiao Ying Zhu 

作者机构：Key Laboratory of Bio-inspired Smart Interracial Science and Technology of Ministry of Education School of Chemistry Beihang University. Belting 100191. China Beijing Advanced Innovation Center for Biomedical Engineering Beihang University. Beijing 100191 China 

出 版 物：《Science Bulletin》 (科学通报（英文版）)

年 卷 期：2018年第63卷第10期

页      面：621-628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 the National Natural Science Foundation of China(51473008,51672019) the National Key Research and Development Program of China(2017YFA0206900) the 111 Project(B14009) 

主　　题：Paper towel Nitrogen doped carbon Oxygen reduction reaction Supercapacitor 

摘      要：Designing and fabricating cheap and active bifunctional materials is crucial for the development of renewable energy *** this article,three-dimensional nitrogen-doped porous carbon materials(NDPC-X,in which X represents the pyrolysis temperature) were fabricated by simultaneous carbonization and activation of polypyrrole-coated paper towel protected by a silica layer followed by acid *** material had a high specific surface area(1,123.40 m^2/g).The as-obtained NDPC-900 displayed outstanding activity as a catalyst for the oxygen reduction reaction(ORR) as well as an electrode with a high specific capacitance in a supercapacitor in an alkaline *** NDPC-900 catalyst for the ORR exhibited a more positive reduction peak potential of à0.068 V(***|HgCl^2) than that of Pt/C(-0.121 V),as well as better cycling stability and stronger methanol ***,the NDPC-900 had a high specific capacitance of 379.50 F/g at a current density of 1 A/g,with a retention rate of 94.5% after 10,000 cycles in 6 mol/L KOH electrolyte when used as an electrode in a *** these results were attributed to the effect of a large surface area,which provided electrochemically active *** work introduces an effective way to use biomass-derived materials for the synthesis of promising bifunctional carbon material for electrochemical energy conversion and storage devices.