文献类型：期刊文献

英文题名：Facile synthesis of N/P co-doped carbons with tailored hierarchically porous structures for supercapacitor applications

作者：Qiang, Yiwei[1];Jiang, Jingui[1];Xiong, Yachao[1];Chen, Hao[1];Chen, Jiayun[1];Guan, Shiyou[1];Chen, Jianding[1]

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China

年份：2016

卷号：6

期号：12

起止页码：9772

外文期刊名：RSC ADVANCES

收录：;EI(收录号：20160501880743);WOS:【SCI-EXPANDED(收录号:WOS:000369516100048)】；

基金：The authors are grateful for the financial support from National Natural Science Foundation of China (No. 21274043).

语种：英文

外文关键词：Nitrogen - Porous materials - Porosity - Carbonization - Supercapacitor

摘要：In this paper, nitrogen/phosphorous co-doped porous carbons (N/P-PCs) with hierarchical porosity were prepared by a one-step carbonization method, of which nitrogen-containing PAA/MMF is the precursor and phosphorous-containing sodium hypophosphite monohydrate is the novel pore-forming agent. The synergistic effect of multilevel porosity and heteroatomic functionalities results in good electrochemical performance. Tested as electrode materials for supercapacitors, N/P-PC-50 demonstrates a maximal specific capacitance of 177 F g(-1) at a current density of 0.1 A g(-1), excellent rate capability (67% capacitance retention at 10 A g(-1)) and superior cycling stability (no capacitance loss after 10 000 cycles). In addition, N/P-PCs have the potential to be used for other applications, and this facile, low-cost and safe synthesis strategy provides a feasible route to develop many hierarchically porous carbon-based materials.