Jump to main content
Jump to site search

Issue 21, 2007
Previous Article Next Article

Adsorption properties of HKUST-1 toward hydrogen and other small molecules monitored by IR

Author affiliations

Abstract

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 orthopara conversion of the adsorbed H2 species.

Graphical abstract: Adsorption properties of HKUST-1 toward hydrogen and other small molecules monitored by IR

Back to tab navigation

Article information


Submitted
12 Mar 2007
Accepted
17 Apr 2007
First published
14 May 2007

Phys. Chem. Chem. Phys., 2007,9, 2676-2685
Article type
Invited Article

Adsorption properties of HKUST-1 toward hydrogen and other small molecules monitored by IR

S. Bordiga, L. Regli, F. Bonino, E. Groppo, C. Lamberti, B. Xiao, P. S. Wheatley, R. E. Morris and A. Zecchina, Phys. Chem. Chem. Phys., 2007, 9, 2676
DOI: 10.1039/B703643D

Social activity

Search articles by author

Spotlight

Advertisements