PREPARATION AND CHARACTERIZATION OF HYBRID CATALYSTS FOR CO2 HYDROGENATION REACTION
Hybrid catalytic system comprising different ratios of CuO/ZnO/Al2O3: zeolite have been formulated and characterized. The methanol-synthesis catalyst, Cu/ZnO/Al2O3 (CuO:ZnO:Al2O3 = 50:45:5), was prepared by a co-precipitation method. The copper catalyst was physically mixed with ZSM-5 zeolite at rat...
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Malaysian Solid State Science and Technology Society
2007
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| Online Access: | http://scholars.utp.edu.my/id/eprint/1008/1/J_Solid_state_Sci_vol_14_2007_Muhammad_Zahiruddin_Ramli_99-104.pdf http://scholars.utp.edu.my/id/eprint/1008/ |
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| author | Ramli, M. Z. Mohd Zabidi, N. A. Chong, F. K |
| author_facet | Ramli, M. Z. Mohd Zabidi, N. A. Chong, F. K |
| author_sort | Ramli, M. Z. |
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| collection | Institutional Repository |
| content_provider | Universiti Teknologi Petronas |
| content_source | UTP Institutional Repository |
| continent | Asia |
| country | Malaysia |
| description | Hybrid catalytic system comprising different ratios of CuO/ZnO/Al2O3: zeolite have been formulated and characterized. The methanol-synthesis catalyst, Cu/ZnO/Al2O3 (CuO:ZnO:Al2O3 = 50:45:5), was prepared by a co-precipitation method. The copper catalyst was physically mixed with ZSM-5 zeolite at ratios of 1:1, 1:2 and 2:1. The hybrid catalysts were characterized using x-ray diffraction method (XRD), temperature-programmed reduction (TPR) and temperature-programmed desorption (TPD) with ammonia. The hybrid catalysts produced two different acid sites as depicted by the ammonia TPD profiles. A TPD peak at 300°C indicated a weak acid site and a stronger acid site were observed at 550 °C. The hybrid catalyst with a 1:1 weight ratio has the highest acid strength and absorbed the most hydrogen. This hybrid catalyst may be used in the hydrogenation of CO2 to methanol and dimethyl ether. |
| format | Citation Index Journal |
| id | oai:scholars.utp.edu.my:1008 |
| institution | Universiti Teknologi Petronas |
| language | en |
| publishDate | 2007 |
| publisher | Malaysian Solid State Science and Technology Society |
| record_format | eprints |
| spelling | oai:scholars.utp.edu.my:10082017-01-19T08:27:13Z http://scholars.utp.edu.my/id/eprint/1008/ PREPARATION AND CHARACTERIZATION OF HYBRID CATALYSTS FOR CO2 HYDROGENATION REACTION Ramli, M. Z. Mohd Zabidi, N. A. Chong, F. K QD Chemistry Hybrid catalytic system comprising different ratios of CuO/ZnO/Al2O3: zeolite have been formulated and characterized. The methanol-synthesis catalyst, Cu/ZnO/Al2O3 (CuO:ZnO:Al2O3 = 50:45:5), was prepared by a co-precipitation method. The copper catalyst was physically mixed with ZSM-5 zeolite at ratios of 1:1, 1:2 and 2:1. The hybrid catalysts were characterized using x-ray diffraction method (XRD), temperature-programmed reduction (TPR) and temperature-programmed desorption (TPD) with ammonia. The hybrid catalysts produced two different acid sites as depicted by the ammonia TPD profiles. A TPD peak at 300°C indicated a weak acid site and a stronger acid site were observed at 550 °C. The hybrid catalyst with a 1:1 weight ratio has the highest acid strength and absorbed the most hydrogen. This hybrid catalyst may be used in the hydrogenation of CO2 to methanol and dimethyl ether. Malaysian Solid State Science and Technology Society 2007 Citation Index Journal PeerReviewed application/pdf en http://scholars.utp.edu.my/id/eprint/1008/1/J_Solid_state_Sci_vol_14_2007_Muhammad_Zahiruddin_Ramli_99-104.pdf Ramli, M. Z. and Mohd Zabidi, N. A. and Chong, F. K (2007) PREPARATION AND CHARACTERIZATION OF HYBRID CATALYSTS FOR CO2 HYDROGENATION REACTION. [Citation Index Journal] |
| spellingShingle | QD Chemistry Ramli, M. Z. Mohd Zabidi, N. A. Chong, F. K PREPARATION AND CHARACTERIZATION OF HYBRID CATALYSTS FOR CO2 HYDROGENATION REACTION |
| title | PREPARATION AND CHARACTERIZATION OF HYBRID CATALYSTS FOR CO2 HYDROGENATION REACTION |
| title_full | PREPARATION AND CHARACTERIZATION OF HYBRID CATALYSTS FOR CO2 HYDROGENATION REACTION |
| title_fullStr | PREPARATION AND CHARACTERIZATION OF HYBRID CATALYSTS FOR CO2 HYDROGENATION REACTION |
| title_full_unstemmed | PREPARATION AND CHARACTERIZATION OF HYBRID CATALYSTS FOR CO2 HYDROGENATION REACTION |
| title_short | PREPARATION AND CHARACTERIZATION OF HYBRID CATALYSTS FOR CO2 HYDROGENATION REACTION |
| title_sort | preparation and characterization of hybrid catalysts for co2 hydrogenation reaction |
| topic | QD Chemistry |
| url | http://scholars.utp.edu.my/id/eprint/1008/1/J_Solid_state_Sci_vol_14_2007_Muhammad_Zahiruddin_Ramli_99-104.pdf http://scholars.utp.edu.my/id/eprint/1008/ |
| url_provider | http://eprints.utp.edu.my/ |