title: 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.
authors.affiliation: Institut de Physique de Rennes, University of Rennes 1, 263 Avenue du Général Leclerc, 35042 Rennes, France. sujeet.dutta@univ-rennes1.fr.
authors.forename: Sujeet
authors.initials: S
authors.lastname: Dutta
authors.forename: Ronan
authors.initials: R
authors.lastname: Lefort
authors.forename: Denis
authors.initials: D
authors.lastname: Morineau
authors.forename: Ramona
authors.initials: R
authors.lastname: Mhanna
authors.forename: Odile
authors.initials: O
authors.lastname: Merdrignac-Conanec
authors.forename: Arnaud
authors.initials: A
authors.lastname: Saint-Jalmes
authors.forename: Théo
authors.initials: T
authors.lastname: Leclercq