文献类型：期刊文献

英文题名：Biomass derived nitrogen-doped hierarchical porous carbon sheets for supercapacitors with high performance

作者：Wang, Cunjing[1,3];Wu, Dapeng[1];Wang, Hongju[1,2];Gao, Zhiyong[1];Xu, Fang[1,2];Jiang, Kai[1,2]

第一作者：Wang, Cunjing;王存景

通讯作者：Wu, DP[1];Jiang, K[1]

机构：[1]Henan Normal Univ, Collaborat Innovat Ctr Henan Prov Green Mfg Fine, Key Lab Green Chem Media & React, Minist Educ,Sch Chem & Chem Engn, Xinxiang 453007, Henan, Peoples R China;[2]Henan Normal Univ, Sch Environm, Xinxiang 453007, Henan, Peoples R China;[3]Xinxiang Univ, Sch Chem & Chem Engn, Xinxiang 453003, Henan, Peoples R China

第一机构：Henan Normal Univ, Collaborat Innovat Ctr Henan Prov Green Mfg Fine, Key Lab Green Chem Media & React, Minist Educ,Sch Chem & Chem Engn, Xinxiang 453007, Henan, Peoples R China

通讯机构：[1]corresponding author), Henan Normal Univ, Collaborat Innovat Ctr Henan Prov Green Mfg Fine, Key Lab Green Chem Media & React, Minist Educ,Sch Chem & Chem Engn, Xinxiang 453007, Henan, Peoples R China.

年份：2018

卷号：523

起止页码：133-143

外文期刊名：JOURNAL OF COLLOID AND INTERFACE SCIENCE

收录：;EI(收录号：20181404978021);Scopus(收录号：2-s2.0-85044658192);WOS:【SCI-EXPANDED(收录号:WOS:000431745500014)】；

基金：This work is supported by National Natural Science Foundation of China (61176004, 61204078, U1304505, 21671059 and 51772078), Program for Changjiang Scholars and Innovative Research Team in University (IRT-17R36), Innovation Scientists and Technicians Troop Construction Projects of Henan Province (154200510009), Program for Innovative Research Team and Individuals (in Science and Technology) in University of Henan Province (18IRTSTHN002, 15HASTIT006, 18HASTIT015), Science and Technology Research Projects of Henan province (162102210268, 162300410174).

语种：英文

外文关键词：Supercapacitors; Biomass; Nitrogen-doped; Porous carbon sheets; Air

摘要：A facile potassium chloride salt-locking technique combined with hydrothermal treatment on precursors was explored to prepare nitrogen-doped hierarchical porous carbon sheets in air from biomass. Benefiting from the effective synthesis strategy, the as-obtained carbon possesses a unique nitrogen-doped thin carbon sheet structure with abundant hierarchical pores and large specific surface areas of 1459 m(2) g(-1). The doped nitrogen in carbon framework has a positive effect on the electrochemical properties of the electrode material, the thin carbon sheet structure benefits for fast ion transfer, the abundant meso-pores provide convenient channels for rapid charge transportation, large specific surface area and lots of micro-pores guarantee sufficient ion-storage sites. Therefore, applied for supercapacitors, the carbon electrode material exhibits an outstanding specific capacitance of 451 F g(-1) at 0.5 A g(-1 )in a three-electrode system. Moreover, the assembled symmetric supercapacitor based on two identical carbon electrodes also displays high specific capacitance of 309 F g(-1) at 0.5 A g(-1), excellent rate capacity and remarkable cycling stability with 99.3% of the initial capacitance retention after 10,000 cycles at 5 A(-1). The synthesis strategy avoids expensive inert gas protection and the use of corrosive KOH and toxic ZnCl2 activated reagents, representing a promising green route to design advanced carbon electrode materials from biomass for high-capacity supercapacitors. (C) 2018 Published by Elsevier Inc.