Oxidation of Carbon Monoxide Over Alumina-supported Metal Oxide Catalysts
Catalysts of the type CuO/Al 2 O 3 , NiO/Al 2 O 3 and Co 3 O 4 /Al 2 O 3 with different chemical compositions and subjected to different calcination temperatures were prepared using the impregnation technique. The crystal structure of the calcination products was determined by X-ray diffraction (XRD...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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SAGE Publications
1995-12-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1177/026361749501200408 |
| _version_ | 1797281977362022400 |
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| author | A.M. Youssef E.A. El-Sharkawy |
| author_facet | A.M. Youssef E.A. El-Sharkawy |
| author_sort | A.M. Youssef |
| collection | DOAJ |
| description | Catalysts of the type CuO/Al 2 O 3 , NiO/Al 2 O 3 and Co 3 O 4 /Al 2 O 3 with different chemical compositions and subjected to different calcination temperatures were prepared using the impregnation technique. The crystal structure of the calcination products was determined by X-ray diffraction (XRD) while the textural properties were determined from nitrogen adsorption at 77 K. The activity of the catalysts towards the oxidation of carbon monoxide with O 2 at different temperatures was also investigated. XRD indicated that calcination of these systems at ≤1073 K did not lead to the formation of spinel. Moreover, no characteristic lines indicating the existence of any metal oxide were observed when the concentration of the latter was less than 10 mol%. The catalytic oxidation of CO followed first-order kinetics with the catalytic activity depending on the metal oxide loading and its dispersion on the surface of the alumina. In most cases, Co 3 O 4 /Al 2 O 3 catalysts exhibited the highest activity. |
| first_indexed | 2024-03-07T17:05:15Z |
| format | Article |
| id | doaj.art-d7480e358f2349d7bf71452427ff65d7 |
| institution | Directory Open Access Journal |
| issn | 0263-6174 2048-4038 |
| language | English |
| last_indexed | 2024-03-07T17:05:15Z |
| publishDate | 1995-12-01 |
| publisher | SAGE Publications |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj.art-d7480e358f2349d7bf71452427ff65d72024-03-03T02:43:00ZengSAGE PublicationsAdsorption Science & Technology0263-61742048-40381995-12-011210.1177/026361749501200408Oxidation of Carbon Monoxide Over Alumina-supported Metal Oxide CatalystsA.M. Youssef0E.A. El-Sharkawy1 Faculty of Science, University of Mansoura, Mansoura, Egypt. Faculty of Education at El-Ariesh, Suez Canal University, Egypt.Catalysts of the type CuO/Al 2 O 3 , NiO/Al 2 O 3 and Co 3 O 4 /Al 2 O 3 with different chemical compositions and subjected to different calcination temperatures were prepared using the impregnation technique. The crystal structure of the calcination products was determined by X-ray diffraction (XRD) while the textural properties were determined from nitrogen adsorption at 77 K. The activity of the catalysts towards the oxidation of carbon monoxide with O 2 at different temperatures was also investigated. XRD indicated that calcination of these systems at ≤1073 K did not lead to the formation of spinel. Moreover, no characteristic lines indicating the existence of any metal oxide were observed when the concentration of the latter was less than 10 mol%. The catalytic oxidation of CO followed first-order kinetics with the catalytic activity depending on the metal oxide loading and its dispersion on the surface of the alumina. In most cases, Co 3 O 4 /Al 2 O 3 catalysts exhibited the highest activity.https://doi.org/10.1177/026361749501200408 |
| spellingShingle | A.M. Youssef E.A. El-Sharkawy Oxidation of Carbon Monoxide Over Alumina-supported Metal Oxide Catalysts Adsorption Science & Technology |
| title | Oxidation of Carbon Monoxide Over Alumina-supported Metal Oxide Catalysts |
| title_full | Oxidation of Carbon Monoxide Over Alumina-supported Metal Oxide Catalysts |
| title_fullStr | Oxidation of Carbon Monoxide Over Alumina-supported Metal Oxide Catalysts |
| title_full_unstemmed | Oxidation of Carbon Monoxide Over Alumina-supported Metal Oxide Catalysts |
| title_short | Oxidation of Carbon Monoxide Over Alumina-supported Metal Oxide Catalysts |
| title_sort | oxidation of carbon monoxide over alumina supported metal oxide catalysts |
| url | https://doi.org/10.1177/026361749501200408 |
| work_keys_str_mv | AT amyoussef oxidationofcarbonmonoxideoveraluminasupportedmetaloxidecatalysts AT eaelsharkawy oxidationofcarbonmonoxideoveraluminasupportedmetaloxidecatalysts |