无机材料学报2012，Vol.27Issue(9)：923-927,5.DOI:10.3724/SP.J.1077.2012.11655
PMDA-ODA型聚酰亚胺炭/碳纳米管杂化膜的制备及气体分离性能研究
Preparation and Gas Separation Properties of Carbon/Carbon Nanotubes Hybrid Membranes Derived from PMDA-ODA Polyimide
摘要
Abstract
A convenient and effective strategy was used to develop a novel carbon/carbon nanotubes (C/CNT) hybrid membrane by incorporating multi-walled carbon nanotubes (MWNT) into PMDA-ODA polyimide precursor through controlled pyrolysis process at 600 ℃. Transmission electron microscope, X-ray diffraction and gas permeation experiments were employed to investigate the microstructural characteristics and gas separation performance of hybrid carbon membrane. Results show that the as-prepared C/CNT hybrid membrane has excellent gas (H2, CO2, O2, N2 and CH4) separation properties as compared with pure carbon membrane, and the O2 permeability of hybrid carbon membrane increases by nearly 4 times reaching 1576 Barrer, while the O2/N2 permselectivity decreasing by only 17%. It is believed that carbon membrane doped by MWNT can make effective use of the interfacial gaps formed between MWNT and carbon matrix to reconstruct the pore structure of hybrid carbon membrane, which helps to increase the gas diffusion ability and further improve the gas permeability of hybrid carbon membrane.关键词
碳纳米管/聚酰亚胺/制备/气体分离Key words
carbon nanotubes/ polyimide/ preparation/ gas separation分类
化学化工引用本文复制引用
宋成文,姜大伟,李琳,孙美悦,王同华..PMDA-ODA型聚酰亚胺炭/碳纳米管杂化膜的制备及气体分离性能研究[J].无机材料学报,2012,27(9):923-927,5.基金项目
国家自然科学基金(20776024,20836006,20976021) （20776024,20836006,20976021）
国家863项目(2009AA03Z215) （2009AA03Z215）
辽宁省教育厅高等学校科研计划项目(2009A098) （2009A098）
中央高校基本科研业务费专项基金(2011QN141) （2011QN141）
辽宁省海洋与渔业厅海洋环保专题基金(2012-Inhyhbc-0004,2012-Inhyhbc-0005) （2012-Inhyhbc-0004,2012-Inhyhbc-0005）
