文献类型：期刊文献

英文题名：Facilely synthesized meso-macroporous polymer as support of poly(ethyleneimine) for highly efficient and selective capture of CO2

作者：Liu, Fujian[1,2]; Huang, Kuan[2]; Yoo, Chun-Jae[3]; Okonkwo, Claudia[3]; Tao, Duan-Jian[2]; Jones, Christopher W.[3]; Dai, Sheng[2,4]

机构：[1] College of Chemistry & Chemical Engineering, Shaoxing University, Shaoxing, Zhejiang, 312000, China; [2] Department of Chemistry, University of Tennessee, Knoxville, TN, 37996, United States; [3] School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, United States; [4] Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, United States

年份：2017

卷号：314

起止页码：466

外文期刊名：Chemical Engineering Journal

收录：EI(收录号：20170703345248)、Scopus(收录号：2-s2.0-85027933735)

语种：英文

外文关键词：Sorbents - Cost effectiveness - Sorption

外文摘要：Poly(ethyleneimine) (PEI) impregnated adsorbents are promising alternatives to amine-based liquid absorbents for post-combustion capture of CO2. A current challenge is to identify meso- and/or macroporous supports with large pore volumes that can be facilely synthesized from a cost-effective approach as supports for PEI. In this work, hierarchically nanoporous poly(divinylbenzene) (PDVB) is synthesized through a one-step polymerization of readily available divinylbenzene (DVB) under solvothermal conditions without use of any template or catalyst. The synthesized PDVB is found to have abundant meso-macropores, as well as a large pore volume. Subsequently, a series of PEI-impregnated PDVB sorbents is prepared and their performance for the selective adsorption of CO2is investigated. The PEI-PDVB composites are found to exhibit promising CO2capacities and exceptionally high CO2/N2selectivities. The strength of CO2adsorption is experimentally determined by direct calorimetric measurements. The PEI-PDVB composites show excellent stability under both dry and humidified sorption conditions during extended adsorption-desorption cycles. Based on the results obtained, these PEI-PDVB composites are identified as sorbents with significant potential for application in practical CO2capture from industrial gas streams. ? 2016 Elsevier B.V.