Effect of γ-Irradiation on the Chemisorption and Catalytic Activity of Ni/AlO and Co/AlO Systems
The textural properties of non-irradiated and γ-irradiated Ni/Al 2 O 3 and Co/Al 2 O 3 systems with different chemical compositions were determined from the adsorption of nitrogen at 77 K. Chemisorption of hydrogen at 320 K and hydrogenation of benzene at 400 K were studied on the reduced catalysts....
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
SAGE Publications
1996-04-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1177/026361749601300202 |
| Summary: | The textural properties of non-irradiated and γ-irradiated Ni/Al 2 O 3 and Co/Al 2 O 3 systems with different chemical compositions were determined from the adsorption of nitrogen at 77 K. Chemisorption of hydrogen at 320 K and hydrogenation of benzene at 400 K were studied on the reduced catalysts. The surface areas of γ-irradiated catalysts are higher than those of their non-irradiated equivalents. γ-Irradiation also increases the hydrogen uptake, the metallic surface area and the percentage dispersion of the metal on the support. The hydrogenation activity also increases upon irradiation with γ-rays. All these changes are more pronounced in catalysts with a high metal loading. |
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| ISSN: | 0263-6174 2048-4038 |