Oxidative Dehydrogenation of n-Butane over LaV Catalysts Supported on TiO2
The catalytic performance of vanadia catalysts with 15 wt% V supported on TiO2 and (15 wt% V + 4.6 wt% La) supported on TiO2 in oxidative dehydrogenation (ODH) of n-butane was investigated. The catalysts were characterized by means of TPD-NH3, TPR-H2, UV-Vis, and BET. Testing of samples showed that...
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| Format: | Article |
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Wiley
2013-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2013/868906 |
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| author | Le Minh Cam Ngo Duc Huyen Nguyen Ngoc Ha |
| author_facet | Le Minh Cam Ngo Duc Huyen Nguyen Ngoc Ha |
| author_sort | Le Minh Cam |
| collection | DOAJ |
| description | The catalytic performance of vanadia catalysts with 15 wt% V supported on TiO2 and (15 wt% V + 4.6 wt% La) supported on TiO2 in oxidative dehydrogenation (ODH) of n-butane was investigated. The catalysts were characterized by means of TPD-NH3, TPR-H2, UV-Vis, and BET. Testing of samples showed that vanadia catalysts were active for the reaction. It was found that La doping of V/TiO2 catalyst had a negative effect on the dispersion of V species and led to formation of V2O5 clusters. This resulted in a loss of activity. Although slight improvement of selectivity was observed in comparison to undoped V/TiO2 samples due to lower acidity of La-doped –V/TiO2, this could not compensate the loss of activity and finally did not lead to higher butene yields. |
| format | Article |
| id | doaj-art-6cf2a253e9414e6e8d83d52f90f851fd |
| institution | Kabale University |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
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| series | Journal of Chemistry |
| spelling | doaj-art-6cf2a253e9414e6e8d83d52f90f851fd2025-02-03T05:58:13ZengWileyJournal of Chemistry2090-90632090-90712013-01-01201310.1155/2013/868906868906Oxidative Dehydrogenation of n-Butane over LaV Catalysts Supported on TiO2Le Minh Cam0Ngo Duc Huyen1Nguyen Ngoc Ha2Division of Theoretical and Physical Chemistry, Faculty of Chemistry, Ha Noi National University of Education, 136 Xuan Thuy Road-Cau Giay-Ha Noi, VietnamDivision of Theoretical and Physical Chemistry, Faculty of Chemistry, Ha Noi National University of Education, 136 Xuan Thuy Road-Cau Giay-Ha Noi, VietnamDivision of Theoretical and Physical Chemistry, Faculty of Chemistry, Ha Noi National University of Education, 136 Xuan Thuy Road-Cau Giay-Ha Noi, VietnamThe catalytic performance of vanadia catalysts with 15 wt% V supported on TiO2 and (15 wt% V + 4.6 wt% La) supported on TiO2 in oxidative dehydrogenation (ODH) of n-butane was investigated. The catalysts were characterized by means of TPD-NH3, TPR-H2, UV-Vis, and BET. Testing of samples showed that vanadia catalysts were active for the reaction. It was found that La doping of V/TiO2 catalyst had a negative effect on the dispersion of V species and led to formation of V2O5 clusters. This resulted in a loss of activity. Although slight improvement of selectivity was observed in comparison to undoped V/TiO2 samples due to lower acidity of La-doped –V/TiO2, this could not compensate the loss of activity and finally did not lead to higher butene yields.http://dx.doi.org/10.1155/2013/868906 |
| spellingShingle | Le Minh Cam Ngo Duc Huyen Nguyen Ngoc Ha Oxidative Dehydrogenation of n-Butane over LaV Catalysts Supported on TiO2 Journal of Chemistry |
| title | Oxidative Dehydrogenation of n-Butane over LaV Catalysts Supported on TiO2 |
| title_full | Oxidative Dehydrogenation of n-Butane over LaV Catalysts Supported on TiO2 |
| title_fullStr | Oxidative Dehydrogenation of n-Butane over LaV Catalysts Supported on TiO2 |
| title_full_unstemmed | Oxidative Dehydrogenation of n-Butane over LaV Catalysts Supported on TiO2 |
| title_short | Oxidative Dehydrogenation of n-Butane over LaV Catalysts Supported on TiO2 |
| title_sort | oxidative dehydrogenation of n butane over lav catalysts supported on tio2 |
| url | http://dx.doi.org/10.1155/2013/868906 |
| work_keys_str_mv | AT leminhcam oxidativedehydrogenationofnbutaneoverlavcatalystssupportedontio2 AT ngoduchuyen oxidativedehydrogenationofnbutaneoverlavcatalystssupportedontio2 AT nguyenngocha oxidativedehydrogenationofnbutaneoverlavcatalystssupportedontio2 |