title: Imine-Linked Polymer Based Nitrogen-Doped Porous Activated Carbon for Efficient and Selective CO2Capture.
abstract: The preparation of nitrogen-doped activated carbon (NACs) has received significant attention because of their applications in CO2capture and sequestration (CCS) owing to abundant nitrogen atoms on their surface and controllable pore structures by carefully controlled carbonization. We report high-surface-area porous N-doped activated carbons (NAC) by using soft-template-assisted self-assembly followed by thermal decomposition and KOH activation. The activation process was carried out under different temperature conditions (600-800 °C) using polyimine as precursor. The NAC-800 was found to have a high specific surface area (1900 m2g-1), a desirable micropore size below 1 nm and, more importantly, a large micropore volume (0.98 cm3g-1). NAC-800 also exhibits a significant capacity of CO2capture i.e., over 6. 25 and 4.87 mmol g-1at 273 K and 298 K respectively at 1.13 bar, which is one of among the highest values reported for porous carbons so far. Moreover, NAC also shows an excellent separation selectivity for CO2over N2.
authors.affiliation: School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Luoyu Road No. 1037, Wuhan, 430074, China.|South Refineries Company, Ministry of Oil, Basra, 61006, Iraq.
authors.forename: Akram
authors.initials: A
authors.lastname: Alabadi
authors.affiliation: Material Engineering Department, College of Engineering, University of Basrah, Basarah, 61006, Iraq.
authors.forename: Hayder A
authors.initials: HA
authors.lastname: Abbood
authors.affiliation: School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Luoyu Road No. 1037, Wuhan, 430074, China.
authors.forename: Qingyin
authors.initials: Q
authors.lastname: Li
authors.affiliation: School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Luoyu Road No. 1037, Wuhan, 430074, China.
authors.forename: Ni
authors.initials: N
authors.lastname: Jing
authors.affiliation: School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Luoyu Road No. 1037, Wuhan, 430074, China.
authors.forename: Bien
authors.initials: B
authors.lastname: Tan