Issue 35, 2016

Thermodynamics of binary gas adsorption in nanopores

Abstract

MCM-41 nanoporous silicas show a very high selectivity for monoalcohols over aprotic molecules during adsorption of a binary mixture in the gas phase. We present here an original use of gravimetric vapour sorption isotherms to characterize the role played by the alcohol hydrogen-bonding network in the adsorption process. Beyond simple selectivity, vapour sorption isotherms measured for various compositions help to completely unravel at the molecular level the step by step adsorption mechanism of the binary system in the nanoporous solid, from the first monolayers to the complete liquid condensation.

Graphical abstract: Thermodynamics of binary gas adsorption in nanopores

Supplementary files

Article information

Article type
Paper
Submitted
08 Mar 2016
Accepted
14 Jul 2016
First published
28 Jul 2016

Phys. Chem. Chem. Phys., 2016,18, 24361-24369

Thermodynamics of binary gas adsorption in nanopores

S. Dutta, R. Lefort, D. Morineau, R. Mhanna, O. Merdrignac-Conanec, A. Saint-Jalmes and T. Leclercq, Phys. Chem. Chem. Phys., 2016, 18, 24361 DOI: 10.1039/C6CP01587E

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