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Number of metallic clusters in Y zeolites obtained from129Xe NMR |
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| Authors: | Giuliano Moretti Wolfgang M. H. Sachtler |
| Affiliation: | (1) Centro di Studio del CNR !["ldquo"]("/content/l822737913647617/xlarge8220.gif") SACSO!["rdquo"]("/content/l822737913647617/xlarge8221.gif") , Dipartimento di Chimica, Università La Sapienza, Piazzale A. Moro 5, 00185 Rome, Italy;(2) Ipatieff Laboratory, Center for Catalysis and Surface Science, Department of Chemistry, Northwestern University, 60208 Evanston, IL, USA |
| Abstract: | We present a simple model which permits to obtain the number of metallic clusters entrapped in Y zeolites from the curves of the chemical shifts of129Xe NMR against the pressure of Xe. From the metal loading the average number of atoms per cluster can also be calculated. We apply the model to Pt/NaY and the bimetallic Pt-Cu/NaY. |
| Keywords: | 129Xe NMR Pt clusters in NaY Pt-Cu bimetallic clusters in NaY |
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