title: A co-confined carbonization approach to aligned nitrogen-doped mesoporous carbon nanofibers and its application as an adsorbent.
abstract: Nitrogen-doped carbon nanofibers (MCNFs) with an aligned mesoporous structure were synthesized by a co-confined carbonization method using anodic aluminum oxide (AAO) membrane and tetraethylorthosilicate (TEOS) as co-confined templates and ionic liquids as the precursor. The as-synthesized MCNFs with the diameter of 80-120nm possessed a bulk nitrogen content of 5.3wt% and bimodal mesoporous structure. The nitrogen atoms were mostly bound to the graphitic network in two forms, i.e. pyridinic and pyrrolic nitrogen, providing adsorption sites for acidic gases like SO2 and CO2. Cyclic experiments revealed a considerable stability of MCNFs over 20 runs of SO2 adsorption and 15 runs for CO2 adsorption. The MCNFs also have a preferable adsorption performance for Cd(2+).
authors.affiliation: College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China. Electronic address: chen_ab@163.com.
authors.forename: Aibing
authors.initials: A
authors.lastname: Chen
authors.affiliation: College of Gemmology and Material Technics, Shijiazhuang University of Economic, Huaian Road 136, Shijiazhuang 050031, China.
authors.forename: Chao
authors.initials: C
authors.lastname: Liu
authors.affiliation: College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China.
authors.forename: Yifeng
authors.initials: Y
authors.lastname: Yu
authors.affiliation: College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China.
authors.forename: Yongqi
authors.initials: Y
authors.lastname: Hu
authors.affiliation: College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China.
authors.forename: Haijun
authors.initials: H
authors.lastname: Lv
authors.affiliation: College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China.
authors.forename: Yue
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China.
authors.forename: Shufeng
authors.initials: S
authors.lastname: Shen
authors.affiliation: Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, China. Electronic address: jzhang@nimte.ac.cn.
authors.forename: Jian
authors.initials: J
authors.lastname: Zhang
mesh_terms: D000327:Adsorption; D002244:Carbon / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D057139:Nanofibers; D009584:Nitrogen / Q000737:chemistry*; D014961:X-Ray Diffraction
chemical_list: D002244:Carbon; D009584:Nitrogen
keywords: Adsorption; Carbon nanofibers; Mesoporous; Nitrogen-doped