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 |
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SAGE Publishing
1996-04-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1177/026361749601300202 |
| _version_ | 1826905275420901376 |
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| author | A.M. Youssef Th. El-Nabarawy G.E. Badr |
| author_facet | A.M. Youssef Th. El-Nabarawy G.E. Badr |
| author_sort | A.M. Youssef |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-03-07T18:55:08Z |
| format | Article |
| id | doaj.art-38fb3ae9bcd2413d96351312680b3f6a |
| institution | Directory Open Access Journal |
| issn | 0263-6174 2048-4038 |
| language | English |
| last_indexed | 2025-02-17T08:26:40Z |
| publishDate | 1996-04-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj.art-38fb3ae9bcd2413d96351312680b3f6a2025-01-02T22:37:59ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40381996-04-011310.1177/026361749601300202Effect of γ-Irradiation on the Chemisorption and Catalytic Activity of Ni/AlO and Co/AlO SystemsA.M. Youssef0Th. El-Nabarawy1G.E. Badr2 Faculty of Science, University of Mansoura, Mansoura, Egypt National Research Centre, Dokki, Cairo, Egypt Faculty of Science, University of Mansoura, Mansoura, EgyptThe 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.https://doi.org/10.1177/026361749601300202 |
| spellingShingle | A.M. Youssef Th. El-Nabarawy G.E. Badr Effect of γ-Irradiation on the Chemisorption and Catalytic Activity of Ni/AlO and Co/AlO Systems Adsorption Science & Technology |
| title | Effect of γ-Irradiation on the Chemisorption and Catalytic Activity of Ni/AlO and Co/AlO Systems |
| title_full | Effect of γ-Irradiation on the Chemisorption and Catalytic Activity of Ni/AlO and Co/AlO Systems |
| title_fullStr | Effect of γ-Irradiation on the Chemisorption and Catalytic Activity of Ni/AlO and Co/AlO Systems |
| title_full_unstemmed | Effect of γ-Irradiation on the Chemisorption and Catalytic Activity of Ni/AlO and Co/AlO Systems |
| title_short | Effect of γ-Irradiation on the Chemisorption and Catalytic Activity of Ni/AlO and Co/AlO Systems |
| title_sort | effect of γ irradiation on the chemisorption and catalytic activity of ni alo and co alo systems |
| url | https://doi.org/10.1177/026361749601300202 |
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