Jump to main content
Jump to site search

Issue 2, 2015
Previous Article Next Article

Enhanced CO2 adsorption capacity of amine-functionalized MIL-100(Cr) metal–organic frameworks

Author affiliations

Abstract

Amine-functionalized metal–organic frameworks EN-MIL-100(Cr) and MMEN-MIL-100(Cr) were prepared by grafting ethylenediamine and N,N′-dimethylethylenediamine molecules, respectively, on coordinatively unsaturated chromium(III) cations in MIL-100 metal–organic frameworks. Although amine grafting results in a decrease in the surface area and pore volume of the functionalized samples compared to those of the bare MIL-100(Cr), results showed that the incorporation of amine groups into the MIL-100 framework improved both carbon dioxide adsorption capacity and kinetics, especially in the case of ethylenediamine. Heats of carbon dioxide adsorption in EN-MIL-100(Cr) and MMEN-MIL-100(Cr) were about 80 kJ mol−1 at zero coverage, a value higher than that shown by MIL-100(Cr), which suggests chemisorption between CO2 and pendant amine groups. Measurement of CO2 adsorption–desorption cycles proved that functionalized materials show good regenerability and stability.

Graphical abstract: Enhanced CO2 adsorption capacity of amine-functionalized MIL-100(Cr) metal–organic frameworks

Back to tab navigation

Supplementary files

Publication details

The article was received on 20 Jun 2014, accepted on 11 Sep 2014 and first published on 11 Sep 2014


Article type: Paper
DOI: 10.1039/C4CE01265H
Author version
available:
Download author version (PDF)
Citation: CrystEngComm, 2015,17, 430-437
  •   Request permissions

    Enhanced CO2 adsorption capacity of amine-functionalized MIL-100(Cr) metal–organic frameworks

    C. P. Cabello, G. Berlier, G. Magnacca, P. Rumori and G. T. Palomino, CrystEngComm, 2015, 17, 430
    DOI: 10.1039/C4CE01265H

Search articles by author

Spotlight

Advertisements