Titre
Adsorption properties of HKUST-1 toward hydrogen and other small molecules monitored by IR
Type
article
Institution
UNIL/CHUV/Unisanté + institutions partenaires
Périodique
Auteur(s)
Bordiga, S.
Auteure/Auteur
Regli, L.
Auteure/Auteur
Bonino, F.
Auteure/Auteur
Groppo, E.
Auteure/Auteur
Lamberti, C.
Auteure/Auteur
Xiao, B.
Auteure/Auteur
Wheatley, P. S.
Auteure/Auteur
Morris, R. E.
Auteure/Auteur
Zecchina, A.
Auteure/Auteur
Liens vers les personnes
Liens vers les unités
ISSN
1463-9076
Statut éditorial
Publié
Date de publication
2007-06
Volume
9
Numéro
21
Première page
2676
Dernière page/numéro d’article
85
Notes
Journal Article
Research Support, Non-U.S. Gov't
Review --- Old month value: Jun 7
Research Support, Non-U.S. Gov't
Review --- Old month value: Jun 7
Résumé
Among microporous systems metal organic frameworks are considered promising materials for molecular adsorption. In this contribution infrared spectroscopy is successfully applied to highlight the positive role played by coordinatively unsaturated Cu2+ ions in HKUST-1, acting as specific interaction sites. A properly activated material, obtained after solvent removal, is characterized by a high fraction of coordinatively unsaturated Cu2+ ions acting as preferential adsorption sites that show specific activities towards some of the most common gaseous species (NO, CO2, CO, N2 and H2). From a temperature dependent IR study, it has been estimated that the H2 adsorption energy is as high as 10 kJ mol(-1). A very complex spectral evolution has been observed upon lowering the temperature. A further peculiarity of this material is the fact that it promotes ortho-para conversion of the adsorbed H2 species.
Sujets
PID Serval
serval:BIB_3FCB09D5D176
PMID
Date de création
2008-01-25T12:10:35.422Z
Date de création dans IRIS
2025-05-20T15:38:25Z