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Issue 35, 2011
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Microporous carbon adsorbents with high CO2 capacities for industrial applications

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Abstract

In this study we attempt to investigate the potential use of two zeolite template carbon (ZTC), EMT-ZTC and FAU-ZTC, to capture CO2 at room temperature. We report their high pressure CO2 adsorption isotherms (273 K) that show for FAU-ZTC the highest carbon capture capacity among published carbonaceous materials and competitive data with the best organic and inorganic adsorbing frameworks ever-known (zeolites and mesoporous silicas, COFs and MOFs). The importance of these results is discussed in light of mitigation of CO2 emissions. In addition to these new experimental CO2 adsorption data, we also present new insight into the adsorption process of the two structures by Monte Carlo simulations: we propose that two separate effects are responsible for the apparent similarity of the adsorption behaviour of the two structures: (i) pore blocking occurring on EMT-ZTC, and (ii) the change of the carbon polarizability due to the extreme curvature of FAU-ZTC.

Graphical abstract: Microporous carbon adsorbents with high CO2 capacities for industrial applications

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Publication details

The article was received on 24 May 2011, accepted on 15 Jul 2011 and first published on 05 Aug 2011


Article type: Paper
DOI: 10.1039/C1CP21673B
Phys. Chem. Chem. Phys., 2011,13, 16063-16070

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    Microporous carbon adsorbents with high CO2 capacities for industrial applications

    S. Builes, T. Roussel, C. M. Ghimbeu, J. Parmentier, R. Gadiou, C. Vix-Guterl and L. F. Vega, Phys. Chem. Chem. Phys., 2011, 13, 16063
    DOI: 10.1039/C1CP21673B

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