Influences of Different Preparation Conditions on Catalytic Activity of Ag2O-Co3O4/γ-Al2O3 for Hydrogenation of Coal Pyrolysis
A series of catalysts of Ag2O-Co3O4/γ-Al2O3 was prepared by equivalent volume impregnation method. The effects of the metal loading, calcination time, and calcination temperatures of Ag and Co, respectively, on the catalytic activity were investigated. The optimum preparing condition of Ag2O-Co3O4/γ...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | Journal of Spectroscopy |
| Online Access: | http://dx.doi.org/10.1155/2014/272819 |
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| author | Lei Zhang Sha Xiang-ling Lei Zhang Wang Rui Zhang Lixin Shu Xinqian |
| author_facet | Lei Zhang Sha Xiang-ling Lei Zhang Wang Rui Zhang Lixin Shu Xinqian |
| author_sort | Lei Zhang |
| collection | DOAJ |
| description | A series of catalysts of Ag2O-Co3O4/γ-Al2O3 was prepared by equivalent volume impregnation method. The effects of the metal loading, calcination time, and calcination temperatures of Ag and Co, respectively, on the catalytic activity were investigated. The optimum preparing condition of Ag2O-Co3O4/γ-Al2O3 was decided, and then the influence of different preparation conditions on catalytic activity of Ag2O-Co3O4/γ-Al2O3 was analyzed. The results showed the following: (1) at the same preparation condition, when silver loading was 8%, the Ag2O-Co3O4/γ-Al2O3 showed higher catalyst activity, (2) the catalyst activity had obviously improved when the cobalt loading was 8%, while it was weaker at loadings 5% and 10%, (3) the catalyst activity was influenced by different calcination temperatures of silver, but the influences were not marked, (4) the catalyst activity can be influenced by calcination time of silver, (5) different calcination times of cobalt can also influence the catalyst activity of Ag2O-Co3O4/γ-Al2O3, and (6) the best preparation conditions of the Ag2O-Co3O4/γ-Al2O3 were silver loading of 8%, calcination temperature of silver of 450°C, and calcinations time of silver of 4 h, while at the same time the cobalt loading was 8%, the calcination temperature of cobalt was 450°C, and calcination time of cobalt was 4 h. |
| format | Article |
| id | doaj-art-017affe872bf4e4e85af04b9f2b9f0fa |
| institution | Kabale University |
| issn | 2314-4920 2314-4939 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Spectroscopy |
| spelling | doaj-art-017affe872bf4e4e85af04b9f2b9f0fa2025-02-03T01:09:30ZengWileyJournal of Spectroscopy2314-49202314-49392014-01-01201410.1155/2014/272819272819Influences of Different Preparation Conditions on Catalytic Activity of Ag2O-Co3O4/γ-Al2O3 for Hydrogenation of Coal PyrolysisLei Zhang0Sha Xiang-ling1Lei Zhang2Wang Rui3Zhang Lixin4Shu Xinqian5School of Geology and Environment, Xi’an University of Science and Technology, Xi’an 710054, ChinaSchool of Geology and Environment, Xi’an University of Science and Technology, Xi’an 710054, ChinaProtection and Energy-Saving Equipment Research Institute, China National Heavy Machinery Research Institute Co., Ltd., Xi’an 710032, ChinaSchool of Geology and Environment, Xi’an University of Science and Technology, Xi’an 710054, ChinaXi’an Thermal Power Research Institute Co., Ltd., Xi’an 710032, ChinaSchool of Chemical and Environment Engineering, China University of Mining and Technology, Beijing 100083, ChinaA series of catalysts of Ag2O-Co3O4/γ-Al2O3 was prepared by equivalent volume impregnation method. The effects of the metal loading, calcination time, and calcination temperatures of Ag and Co, respectively, on the catalytic activity were investigated. The optimum preparing condition of Ag2O-Co3O4/γ-Al2O3 was decided, and then the influence of different preparation conditions on catalytic activity of Ag2O-Co3O4/γ-Al2O3 was analyzed. The results showed the following: (1) at the same preparation condition, when silver loading was 8%, the Ag2O-Co3O4/γ-Al2O3 showed higher catalyst activity, (2) the catalyst activity had obviously improved when the cobalt loading was 8%, while it was weaker at loadings 5% and 10%, (3) the catalyst activity was influenced by different calcination temperatures of silver, but the influences were not marked, (4) the catalyst activity can be influenced by calcination time of silver, (5) different calcination times of cobalt can also influence the catalyst activity of Ag2O-Co3O4/γ-Al2O3, and (6) the best preparation conditions of the Ag2O-Co3O4/γ-Al2O3 were silver loading of 8%, calcination temperature of silver of 450°C, and calcinations time of silver of 4 h, while at the same time the cobalt loading was 8%, the calcination temperature of cobalt was 450°C, and calcination time of cobalt was 4 h.http://dx.doi.org/10.1155/2014/272819 |
| spellingShingle | Lei Zhang Sha Xiang-ling Lei Zhang Wang Rui Zhang Lixin Shu Xinqian Influences of Different Preparation Conditions on Catalytic Activity of Ag2O-Co3O4/γ-Al2O3 for Hydrogenation of Coal Pyrolysis Journal of Spectroscopy |
| title | Influences of Different Preparation Conditions on Catalytic Activity of Ag2O-Co3O4/γ-Al2O3 for Hydrogenation of Coal Pyrolysis |
| title_full | Influences of Different Preparation Conditions on Catalytic Activity of Ag2O-Co3O4/γ-Al2O3 for Hydrogenation of Coal Pyrolysis |
| title_fullStr | Influences of Different Preparation Conditions on Catalytic Activity of Ag2O-Co3O4/γ-Al2O3 for Hydrogenation of Coal Pyrolysis |
| title_full_unstemmed | Influences of Different Preparation Conditions on Catalytic Activity of Ag2O-Co3O4/γ-Al2O3 for Hydrogenation of Coal Pyrolysis |
| title_short | Influences of Different Preparation Conditions on Catalytic Activity of Ag2O-Co3O4/γ-Al2O3 for Hydrogenation of Coal Pyrolysis |
| title_sort | influences of different preparation conditions on catalytic activity of ag2o co3o4 γ al2o3 for hydrogenation of coal pyrolysis |
| url | http://dx.doi.org/10.1155/2014/272819 |
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