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Issue 16, 2014
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Porous graphene frameworks pillared by organic linkers with tunable surface area and gas storage properties

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Abstract

We report the design and synthesis of two porous graphene frameworks (PGFs) prepared via covalent functionalization of reduced graphene oxide (RGO) with iodobenzene followed by a C–C coupling reaction. In contrast to RGO, these 3D frameworks show high surface area (BET, 825 m2 g−1) and pore volumes due to the effect of pillaring. Interestingly, both the frameworks show high CO2 uptake (112 wt% for PGF-1 and 60 wt% for PGF-2 at 195 K up to 1 atm). PGFs show nearly 1.2 wt% H2 storage capacity at 77 K and 1 atm, increasing to ∼1.9 wt% at high pressure. These all carbon-based porous solids based on pillared graphene frameworks suggest the possibility of designing related several such novel materials with attractive properties.

Graphical abstract: Porous graphene frameworks pillared by organic linkers with tunable surface area and gas storage properties

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Publication details

The article was received on 10 Sep 2013, accepted on 11 Dec 2013 and first published on 11 Dec 2013


Article type: Communication
DOI: 10.1039/C3CC46907G
Chem. Commun., 2014,50, 2015-2017

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    Porous graphene frameworks pillared by organic linkers with tunable surface area and gas storage properties

    R. Kumar, V. M. Suresh, T. K. Maji and C. N. R. Rao, Chem. Commun., 2014, 50, 2015
    DOI: 10.1039/C3CC46907G

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