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

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

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 Trans. 2015 Jun 7;44(21):9955-63. doi: 10.1039/c5dt00909j.

Authors

Carlos Palomino Cabello¹, Carlos Otero Arean, José B Parra, Conchi O Ania, P Rumori, G Turnes Palomino

Affiliation

¹ Department of Chemistry, University of the Balearic Islands, 07122 Palma de Mallorca, Spain. g.turnes@uib.es.

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.