| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 76798 | Microporous and Mesoporous Materials | 2007 | 9 Pages |
Abstract
Zeolite X successively exchanged with Ca2+ and Co2+ ions is an efficient absorbent for traces removal of cyclopentadiene from alkene mixtures. To understand this affinity and stability of the aluminosilicate with this combination of cations, detailed structure analyses of samples after ion exchange, calcination, and exposure to guest molecules have been performed. Rietveld analysis of X-ray powder diffractograms of samples of known composition revealed stabilizing effects of the cation distribution in the studied samples and the irreversible blocking of Ca ions in hidden structure positions, resulting in positioning of Co ions at positions available for interaction with guest molecules like 1-octene and cyclopentadiene.
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Physical Sciences and Engineering
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Authors
Joeri F.M. Denayer, Anouschka Depla, Walter Vermandel, Frederik Gemoets, Frederik van Buren, Johan Martens, Christine Kirschhock, Gino V. Baron, Pierre A. Jacobs,