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Ruoff, Rodney S.
Center for Multidimensional Carbon Materials (CMCM)
Research Interests
  • Next generation carbons, ultrathin sp3-bonded carbon sheets, negative curvature (‘Schwartzites’) carbons, sp3/sp2 hybrid carbon materials, model compounds for novel carbon materials, reaction mechanisms

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Synthesis of Porous Covalent Quinazoline Networks (CQNs) and Their Gas Sorption Properties

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Title
Synthesis of Porous Covalent Quinazoline Networks (CQNs) and Their Gas Sorption Properties
Author
Buyukcakir, OnurYuksel, RecepJiang, YiLee, Sun HwaSeong, Won KyungChen, XiongRuoff, Rodney S.
Issue Date
2019-01
Publisher
WILEY-V C H VERLAG GMBH
Citation
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, v.58, no.3, pp.872 - 876
Abstract
The development of different classes of porous polymers by linking organic molecules using new chemistries still remains a great challenge. Herein, we introduce for the first time the synthesis of covalent quinazoline networks (CQNs) using an ionothermal synthesis protocol. Zinc chloride (ZnCl2) was used as the solvent and catalyst for the condensation of aromatic ortho-aminonitriles to produce tricycloquinazoline linkages. The resulting CQNs show a high porosity with a surface area up to 1870 m2 g−1. Varying the temperature and the amount of catalyst enables us to control the surface area as well as the pore size distribution of the CQNs. Furthermore, their high nitrogen content and significant microporosity make them a promising CO2 adsorbent with a CO2 uptake capacity of 7.16 mmol g−1 (31.5 wt %) at 273 K and 1 bar. Because of their exceptional CO2 sorption properties, they are promising candidates as an adsorbent for the selective capture of CO2 from flue gas.
URI
https://scholarworks.unist.ac.kr/handle/201301/25648
URL
https://onlinelibrary.wiley.com/doi/full/10.1002/anie.201813075
DOI
10.1002/anie.201813075
ISSN
1433-7851
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