Paving the Way for the Molecular-Level Design of Adsorbents for

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Paving the Way for the Molecular-Level Design of Adsorbents for Carbon Capture: a Quantum-Chemical Investigation of the Adsorption of CO and N on Pure-Silica Chabazite 2

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Antonio Cláudio Pinheiro Barbosa, Pierre Mothé Esteves, and Marco Antonio Chaer Nascimento J. Phys. Chem. C, Just Accepted Manuscript • DOI: 10.1021/acs.jpcc.7b06611 • Publication Date (Web): 18 Aug 2017 Downloaded from http://pubs.acs.org on August 19, 2017

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The Journal of Physical Chemistry

Paving the Way for the Molecular-Level Design of Adsorbents for Carbon Capture: a Quantum-chemical Investigation of the Adsorption of CO2 and N2 on Pure-silica Chabazite Antonio Claudio Pinheiro Barbosa, Pierre Mothé Esteves, and Marco Antonio

Chaer Nascimento



Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro RJ 21941-909, Brazil E-mail: [email protected] Phone: +55-21-3938.7563. Fax: +55-21-3938.7265

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The Journal of Physical Chemistry

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Abstract Pure-silica chabazite is a promising material for capturing CO2 from ue gases in adsorption-based Carbon Capture and Storage. The adsorption of CO2 and N2 on pure-silica chabazite has been studied at the molecular level with Density Functional Theory in the nite cluster/supermolecule approach. Molar enthalpies of adsorption of CO2 and N2 have been calculated with excellent agreement (