文献类型：期刊文献

英文题名：Template-free synthesis of nitrogen-doped hierarchical porous carbons for CO2 adsorption and supercapacitor electrodes

作者：Bing, Xuefeng[1];Wei, Yanju[1];Wang, Mei[1];Xu, Sheng[1];Long, Donghui[1];Wang, Jitong[1,2];Qiao, Wenming[1,2];Ling, Licheng[1,2]

机构：[1]East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Key Lab Specially Funct Polymer Mat & Related Tec, Shanghai 200237, Peoples R China

年份：2017

卷号：488

起止页码：207

外文期刊名：JOURNAL OF COLLOID AND INTERFACE SCIENCE

收录：;EI(收录号：20164603012086);WOS:【SCI-EXPANDED(收录号:WOS:000389785500023)】；

基金：This work was financially supported by MOST (2014CB239702), National Natural Science Foundation of China (Nos. 21506061, 21576090, 51302083, 51272077), Shanghai Municipal Natural Science Foundation (No. 14ZR1410400), PetroChina Innovation Foundation and Fundamental Research Funds for the Central Universities.

语种：英文

外文关键词：Template-free synthesis; Nitrogen-doped hierarchical porous carbons; CO2 adsorption; Supercapacitor

摘要：Nitrogen-doped hierarchical porous carbons (NHPCs) with controllable nitrogen content were prepared via a template-free method by direct carbonization of melamine-resorcinol-terephthaldehyde networks. The synthetic approach is facile and gentle, resulting in a hierarchical pore structure with modest micropores and well-developed meso-/macropores, and allowing the easy adjusting of the nitrogen content in the carbon framework. The micropore structure was generated within the highly cross-linked networks of polymer chains, while the mesopore and macropore structure were formed from the interconnected 3D gel network. The as-prepared NHPC has a large specific surface area of 1150 m(2).g(-1), and a high nitrogen content of 14.5 wt.%. CO2 adsorption performances were measured between 0 degrees C and 75 degrees C, and a high adsorption capacity of 3.96 mmol.g(-1) was achieved at 1 bar and 0 degrees C. Moreover, these nitrogen-doped hierarchical porous carbons exhibit a great potential to act as electrode materials for supercapacitors, which could deliver high specific capacitance of 214.0 F.g(-1) with an excellent rate capability of 74.7% from 0.1 to 10 A.g(-1). The appropriate nitrogen doping and well-developed hierarchical porosity could accelerate the ion diffusion and the frequency response for excellent capacitive performance. This kind of new nitrogen-doped hierarchical porous carbons with controllable hierarchical porosity and chemical composition may have a good potential in the future applications. (C) 2016 Elsevier Inc. All rights reserved.