Promoted catalytic performances of highly dispersed V-doped SBA-16 catalysts for oxidative dehydrogenation of ethane to ethylene
© 2016. V-doped SBA-16 catalysts (V-SBA-16) with 3D nanocage mesopores have been successfully synthesized by a modified one-pot method under weak acid condition. The obtained materials were characterized by means of small angle XRD, N2 adsorption-desorption, TEM, UV-Vis and UV-Raman spectroscopy. Th...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
| Published: |
Elsevier Inc.
2016
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| Online Access: | http://hdl.handle.net/20.500.11937/19527 |
| _version_ | 1848750058469588992 |
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| author | Kong, L. Li, J. Liu, Q. Zhao, Z. Sun, Q. Liu, Jian Wei, Y. |
| author_facet | Kong, L. Li, J. Liu, Q. Zhao, Z. Sun, Q. Liu, Jian Wei, Y. |
| author_sort | Kong, L. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2016. V-doped SBA-16 catalysts (V-SBA-16) with 3D nanocage mesopores have been successfully synthesized by a modified one-pot method under weak acid condition. The obtained materials were characterized by means of small angle XRD, N2 adsorption-desorption, TEM, UV-Vis and UV-Raman spectroscopy. These characterization results indicated that well-order mesoporous structures were maintained even at higher vanadium loadings and high concentration of VO x species were incorporated into the framework of SBA-16 support. The catalytic performances of V-SBA-16, V/SBA-16 and V/SiO2 catalysts were comparatively investigated for the oxidative dehydrogenation of ethane to ethylene. The highest selectivity to ethylene of 63.3% and ethylene yield of 25.6% were obtained over 1.0V-SBA-16 catalyst. The superior catalytic performance of V-SBA-16 catalysts could be attributed to the presence of isolated framework VO x species, the unique structure of SBA-16 support and weak acidity. Moreover, V/SiO2 catalyst exhibited relatively poor catalytic activity duo to the formation of V2O5 nanoparticles on the surface of SiO2 support and the low dispersion of VO x species. These results indicated that the catalytic performances of the studied catalysts were strongly dependent on the vanadium loading, the nature and neighboring environment of VO x species and the structure of support. |
| first_indexed | 2025-11-14T07:30:48Z |
| format | Journal Article |
| id | curtin-20.500.11937-19527 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:30:48Z |
| publishDate | 2016 |
| publisher | Elsevier Inc. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-195272017-09-13T13:45:15Z Promoted catalytic performances of highly dispersed V-doped SBA-16 catalysts for oxidative dehydrogenation of ethane to ethylene Kong, L. Li, J. Liu, Q. Zhao, Z. Sun, Q. Liu, Jian Wei, Y. © 2016. V-doped SBA-16 catalysts (V-SBA-16) with 3D nanocage mesopores have been successfully synthesized by a modified one-pot method under weak acid condition. The obtained materials were characterized by means of small angle XRD, N2 adsorption-desorption, TEM, UV-Vis and UV-Raman spectroscopy. These characterization results indicated that well-order mesoporous structures were maintained even at higher vanadium loadings and high concentration of VO x species were incorporated into the framework of SBA-16 support. The catalytic performances of V-SBA-16, V/SBA-16 and V/SiO2 catalysts were comparatively investigated for the oxidative dehydrogenation of ethane to ethylene. The highest selectivity to ethylene of 63.3% and ethylene yield of 25.6% were obtained over 1.0V-SBA-16 catalyst. The superior catalytic performance of V-SBA-16 catalysts could be attributed to the presence of isolated framework VO x species, the unique structure of SBA-16 support and weak acidity. Moreover, V/SiO2 catalyst exhibited relatively poor catalytic activity duo to the formation of V2O5 nanoparticles on the surface of SiO2 support and the low dispersion of VO x species. These results indicated that the catalytic performances of the studied catalysts were strongly dependent on the vanadium loading, the nature and neighboring environment of VO x species and the structure of support. 2016 Journal Article http://hdl.handle.net/20.500.11937/19527 10.1016/j.jechem.2016.04.004 Elsevier Inc. restricted |
| spellingShingle | Kong, L. Li, J. Liu, Q. Zhao, Z. Sun, Q. Liu, Jian Wei, Y. Promoted catalytic performances of highly dispersed V-doped SBA-16 catalysts for oxidative dehydrogenation of ethane to ethylene |
| title | Promoted catalytic performances of highly dispersed V-doped SBA-16 catalysts for oxidative dehydrogenation of ethane to ethylene |
| title_full | Promoted catalytic performances of highly dispersed V-doped SBA-16 catalysts for oxidative dehydrogenation of ethane to ethylene |
| title_fullStr | Promoted catalytic performances of highly dispersed V-doped SBA-16 catalysts for oxidative dehydrogenation of ethane to ethylene |
| title_full_unstemmed | Promoted catalytic performances of highly dispersed V-doped SBA-16 catalysts for oxidative dehydrogenation of ethane to ethylene |
| title_short | Promoted catalytic performances of highly dispersed V-doped SBA-16 catalysts for oxidative dehydrogenation of ethane to ethylene |
| title_sort | promoted catalytic performances of highly dispersed v-doped sba-16 catalysts for oxidative dehydrogenation of ethane to ethylene |
| url | http://hdl.handle.net/20.500.11937/19527 |