文献类型：期刊文献

英文题名：Nitrogen-Doped Coal Tar Pitch Based Microporous Carbons with Superior CO2 Capture Performance

作者：Yu, Dai[1];Hu, Jun[1];Zhou, Lihui[1];Li, Jinxia[1];Tang, Jing[1];Peng, Changjun[1];Liu, Honglai[1]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China

年份：2018

卷号：32

期号：3

起止页码：3726

外文期刊名：ENERGY & FUELS

收录：;EI(收录号：20181204922719);WOS:【SCI-EXPANDED(收录号:WOS:000428003800109)】；

基金：This work was supported by the National Natural Science Foundation of China (Project 21676080).

语种：英文

外文关键词：Coal tar - Iron compounds - Microporosity - Doping (additives) - Chlorine compounds - Porous materials - Adsorption - Carbon - Chemical activation - Nitrogen

摘要：Coal tar pitch based nitrogen-doped porous carbons were developed by FeCl3 activation for enhanced CO2 capture. The carbon materials, synthesized with different FeCl3/carbon precursor mass ratios and activation temperatures, exhibit high porosity, especially microporosity, and nitrogen species contents, leading to superior CO2 adsorption capacities in the range of 3.71-4.58 mmol g(-1) and 5.68-7.18 mmol g(-1) at 25 and 0 degrees C under 1 bar, respectively. In particular, N-AC-600-2 and N-AC-600-3 materials show the highest uptakes of CO2 at 25 and 0 degrees C, respectively, which rank among the best porous carbon sorbents. The nitrogen-doping and porosity of the fabricated carbons have combined impact on CO2 adsorption. In addition, both excellent regenerability and high CO2/N-2 selectivity were achieved, making these carbon materials promising candidates for large-scale CO2 adsorption.