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Baek, Jong-Beom
Center for Dimension-Controllable Organic Frameworks
Research Interests
  • Covalent Organic Frameworks (COFs), Carbon Nanotubes(CNTs), graphene, Energy Conversion and Storage

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Forming layered conjugated porous BBL structures

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Title
Forming layered conjugated porous BBL structures
Author
Shin, Sun-HeeNoh, Hyuk-JunKim, Young-HyunIm, Yoon-KwangMahmood, JaveedBaek, Jong-Beom
Issue Date
2019-08
Publisher
ROYAL SOC CHEMISTRY
Citation
POLYMER CHEMISTRY, v.10, no.30, pp.4185 - 4193
Abstract
One-dimensional (1D) ladder-like poly(benzoimidazobenzophenanthrolines) (BBLs) have attracted great interest due to their outstanding features, including thermal and chemical stability, electrical conductivity, and optical and electronic properties. Nevertheless, layered conjugated porous BBL structures have not yet been reported to date. Here, we introduce two-dimensional (2D) layered BBL structures via the polycondensation of mellitic anhydride (MTA) as an A(3) monomer with 1,2,4,5-tetraaminobenzene (TAB) as the B-2 monomer, or hexaaminobenzene (HAB) as the B-3 monomer in polyphosphoric acid (PPA). The porous 2D BBL network structures are constructed of robust fused aromatic rings and thus exhibit high thermal stability and high Brunauer-Emmett-Teller (BET) surface areas with different pore diameters and permanent microporosities. The 2D BBL networks demonstrated high gas uptake capacities for hydrogen (H-2, 1.65 wt% at 77 K, 1 bar) and carbon dioxide (CO2, 15.6 wt% at 273 K, 1 bar) with unusually high Q(st) values.
URI
https://scholarworks.unist.ac.kr/handle/201301/30380
URL
https://pubs.rsc.org/en/content/articlelanding/2019/PY/C9PY00840C#!divAbstract
DOI
10.1039/c9py00840c
ISSN
1759-9954
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