Magnesium aminoethyl phosphonate (Mg(AEP)(H2O)): an inorganic-organic hybrid nanomaterial with high CO2:N2 sorption selectivity

Peter Leidinger; Sara Simonato; Claus Feldmann

doi:10.1039/c2cc32691d

Magnesium aminoethyl phosphonate (Mg(AEP)(H2O)): an inorganic-organic hybrid nanomaterial with high CO2:N2 sorption selectivity

Chem Commun (Camb). 2012 Jul 18;48(56):7046-8. doi: 10.1039/c2cc32691d. Epub 2012 Jun 11.

Authors

Peter Leidinger¹, Sara Simonato, Claus Feldmann

Affiliation

¹ Institut für Anorganische Chemie, Karlsruhe Institute of Technology (KIT), Engesserstrasse 15, 76131 Karlsruhe, Germany.

PMID: 22684145
DOI: 10.1039/c2cc32691d

Abstract

The inorganic-organic hybrid magnesium aminoethyl phosphonate (Mg(AEP)(H(2)O), particle diameter: 20 nm; specific surface area: 322(10) m(2) g(-1); pore volume: 0.9(1) cm(3) g(-1)) shows reversible CO(2) sorption (152(5) mg g(-1)) at high pressure (≤110 bar). In contrast, N(2) uptake remains below 1.0(1) mg g(-1). Based on this selectivity (∼100%) Mg(AEP)(H(2)O) expands the range of materials available for CO(2) capture.