Projects per year
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, N-2 and H-2). From a temperature dependent IR study, it has been estimated that the H-2 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 H-2 species.
Original language | English |
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Pages (from-to) | 2676-2685 |
Number of pages | 10 |
Journal | Physical Chemistry Chemical Physics |
Volume | 9 |
DOIs | |
Publication status | Published - 7 Jun 2007 |
Keywords
- METAL-ORGANIC FRAMEWORK
- EXCHANGED ZSM-5 ZEOLITES
- TEMPERATURE CO ADSORPTION
- X-RAY-ABSORPTION
- CARBON-MONOXIDE
- VIBRATIONAL SPECTROSCOPY
- HIGH-RESOLUTION
- THERMODYNAMIC PROPERTIES
- INFRARED-SPECTROSCOPY
- PROBE MOLECULES
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Dive into the research topics of 'Adsorption properties of HKUST-1 toward hydrogen and other small molecules monitored by IR'. Together they form a unique fingerprint.Projects
- 1 Finished
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GR/T09705/01: Designing Porous Metal-Organic Frameworks to Store and Deliver Large Amounts of Nitric Oxide
Morris, R. E. (PI) & Butler, A. R. (CoI)
1/12/04 → 31/01/08
Project: Standard