Metal-Containing Pd and Cu and Bimetallic Pd—Cu Catalytic Systems Based on HZSM-5 Zeolite
Palladium- and copper-containing HZSM-5 zeolites with different metal loadings, together with Pd–Cu and Cu–Pd bimetallic zeolite systems, were prepared by ion-exchanging HZSM-5 zeolite with metal–ammine complex cations. The catalytic activity of such materials in CO oxidation was investigated under...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Hindawi - SAGE Publishing
1999-07-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1177/026361749901700703 |
| Summary: | Palladium- and copper-containing HZSM-5 zeolites with different metal loadings, together with Pd–Cu and Cu–Pd bimetallic zeolite systems, were prepared by ion-exchanging HZSM-5 zeolite with metal–ammine complex cations. The catalytic activity of such materials in CO oxidation was investigated under flowing conditions using various gas mixtures (0.5–2% CO, 20% O 2 and 78–79.5% He). The dependence of the activity of the Cu–Pd system on the CO content in the gaseous mixture was observed. The influence of the catalytic properties on the reduction conditions employed for the metal-containing zeolites was investigated. Correlations between the catalytic activity and the intensity of the N–H band in the IR spectra characteristic of the various Pd/Cu–ammine complexes incorporated in the zeolite matrix were demonstrated. |
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| ISSN: | 0263-6174 2048-4038 |