Edge-Functionalized Graphene Nanoribbon Frameworks for the Capture and Separation of Greenhouse Gases

Cited 12 time in webofscience Cited 0 time in scopus
  • Hit : 595
  • Download : 0
We demonstrate a bottom-up synthetic approach for the synthesis of graphene nanoribbon frameworks (GNFs) incorporating edge-functionalized graphene nanoribbons via the Diels-Alder cyclo-addition polymerization and a subsequent FeCl3-catalyzed cyclo-dehydrogenation reactions. This approach not only allowed us to precisely position substituents, namely, -OMe (GNF-0), -H (GNF-1), -CF3 (GNF-2), and -F (GNP-3), but also enabled to tune textural properties and gas affinity of resulting frameworks. GNFs exhibited promising physical properties such as high surface areas (up to 755 m(2) g(-1)) and excellent physicochemical and thermal stabilities (up to 400 degrees C). Narrow pore size distribution and the presence of large aromatic units led to high affinity toward gases such as CO2 (27.4-30.9 kJ mol(-1) at 1 bar), CH4 (21.3-26.0 kJ mol(-1) at 1 bar), and H-2 (6.5-8.2 kJ mol(-1) at 1 bar). Notably, GNFs also showed promising CO2/CH4 breakthrough separation performance for natural gas sweetening and landfill gas separations at 298 K. The edge-functionalization of GNFs with -CF3 and significantly improved their affinity toward perfluorocarbons and CFCs, which are classified as potent greenhouse gases. Compared to GNF-3, GNF-2 containing -CF3 moieties showed much higher uptake capacity toward CFC-113 (67 wt % at 298 K).
Publisher
AMER CHEMICAL SOC
Issue Date
2017-01
Language
English
Article Type
Article
Keywords

COVALENT ORGANIC FRAMEWORKS; POROUS AROMATIC FRAMEWORK; CARBON-DIOXIDE; MICROPOROUS POLYMERS; SORPTION PROPERTIES; FACIAL SELECTIVITY; HYDROGEN STORAGE; ACTIVATED CARBON; CO2 CAPTURE; ADSORPTION

Citation

MACROMOLECULES, v.50, no.2, pp.523 - 533

ISSN
0024-9297
DOI
10.1021/acs.macromol.6b02483
URI
http://hdl.handle.net/10203/220894
Appears in Collection
EEW-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 12 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0