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Dalton Trans. 2015 Jun 07;44(21):9955-63. doi: 10.1039/c5dt00909j.

A rapid microwave-assisted synthesis of a sodium-cadmium metal-organic framework having improved performance as a CO2 adsorbent for CCS.

Dalton transactions (Cambridge, England : 2003)

Carlos Palomino Cabello, Carlos Otero Arean, José B Parra, Conchi O Ania, P Rumori, G Turnes Palomino

Affiliations

  1. Department of Chemistry, University of the Balearic Islands, 07122 Palma de Mallorca, Spain. [email protected].

PMID: 25939594 DOI: 10.1039/c5dt00909j

Abstract

We report on a facile and rapid microwave-assisted method for preparing a sodium-cadmium metal-organic framework (having coordinatively unsaturated sodium ions) that considerably shortens the conventional synthesis time from 5 days to 1 hour. The obtained (Na,Cd)-MOF showed an excellent volumetric CO2 adsorption capacity (5.2 mmol cm(-3) at 298 K and 1 bar) and better CO2 adsorption properties than those shown by the same metal-organic framework when synthesized following a more conventional procedure. Moreover, the newly prepared material was found to display high selectivity for adsorption of carbon dioxide over nitrogen, and good regenerability and stability during repeated CO2 adsorption-desorption cycles, which are the required properties for any adsorbent intended for carbon dioxide capture and sequestration (CSS) from the post-combustion flue gas of fossil fuelled power stations.

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