Synthesis of mesoporous silica material with ultra-large pore sizes and the HDS performance of dibenzothiophene
© 2016 Elsevier Inc. Ultra-large mesoporous silica materials using different micelle expanders including hexane, cyclohexane, 1,3,5-triisopropylbenzene and 1,3,5-triethylbenzene, have been successfully synthesized by the template of polymer surfactant of P123 (Aldrich, EO20PO70EO20). Among all the u...
| Main Authors: | , , , , , , , , , |
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| Format: | Journal Article |
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Elsevier BV
2016
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| Online Access: | http://hdl.handle.net/20.500.11937/31424 |
| _version_ | 1848753377296515072 |
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| author | Song, S. Zhou, X. Duan, A. Zhao, Z. Chi, K. Zhang, M. Jiang, G. Liu, Jian Li, J. Wang, X. |
| author_facet | Song, S. Zhou, X. Duan, A. Zhao, Z. Chi, K. Zhang, M. Jiang, G. Liu, Jian Li, J. Wang, X. |
| author_sort | Song, S. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2016 Elsevier Inc. Ultra-large mesoporous silica materials using different micelle expanders including hexane, cyclohexane, 1,3,5-triisopropylbenzene and 1,3,5-triethylbenzene, have been successfully synthesized by the template of polymer surfactant of P123 (Aldrich, EO20PO70EO20). Among all the used micelle expanders, highly ordered cubic mesoporous silica material (SBA-16@hexane) with ultra-large pore size was obtained by using hexane. All the obtained samples were well characterized by small-angle X-ray scattering (SAXS), transmission electron microscopy (TEM), nitrogen adsorption-desorption, UV-vis diffuse reflectance spectroscopy (DRS), H2-TPR, pyridine-FTIR, 27Al MAS NMR, GC-MS and Raman. The synthesis mechanism was also proposed. Compared with the conventional SBA-16 (6.31 nm) synthesized taking polymer surfactant of F127 (propylene oxide block copolymer) as the template, the as-synthesized SBA-16@hexane had a pore diameter of 15.1 nm with a highly ordered mesostructure, which was the largest one among all the reported pore sizes of SBA-16 materials. The corresponding hydrodesulfurization (HDS) catalysts of NiMo/Al-SBA-16@hexane, NiMo/?-Al2O3, and NiMo/Al-SBA-16 were prepared by using different supports respectively, furthermore, their HDS performances were evaluated adopting dibenzothiophene (DBT) as the probe reactant. The DBT HDS efficiencies over these catalysts followed the order: NiMo/Al-SBA-16@hexane > NiMo/?-Al2O3 > NiMo/Al-SBA-16. The high activity of NiMo/Al-SBA-16@hexane can be attributed to the superior diffusivity of the novel support of SBA-16@hexane with ultra-large pore size. |
| first_indexed | 2025-11-14T08:23:33Z |
| format | Journal Article |
| id | curtin-20.500.11937-31424 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:23:33Z |
| publishDate | 2016 |
| publisher | Elsevier BV |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-314242017-09-13T15:19:35Z Synthesis of mesoporous silica material with ultra-large pore sizes and the HDS performance of dibenzothiophene Song, S. Zhou, X. Duan, A. Zhao, Z. Chi, K. Zhang, M. Jiang, G. Liu, Jian Li, J. Wang, X. © 2016 Elsevier Inc. Ultra-large mesoporous silica materials using different micelle expanders including hexane, cyclohexane, 1,3,5-triisopropylbenzene and 1,3,5-triethylbenzene, have been successfully synthesized by the template of polymer surfactant of P123 (Aldrich, EO20PO70EO20). Among all the used micelle expanders, highly ordered cubic mesoporous silica material (SBA-16@hexane) with ultra-large pore size was obtained by using hexane. All the obtained samples were well characterized by small-angle X-ray scattering (SAXS), transmission electron microscopy (TEM), nitrogen adsorption-desorption, UV-vis diffuse reflectance spectroscopy (DRS), H2-TPR, pyridine-FTIR, 27Al MAS NMR, GC-MS and Raman. The synthesis mechanism was also proposed. Compared with the conventional SBA-16 (6.31 nm) synthesized taking polymer surfactant of F127 (propylene oxide block copolymer) as the template, the as-synthesized SBA-16@hexane had a pore diameter of 15.1 nm with a highly ordered mesostructure, which was the largest one among all the reported pore sizes of SBA-16 materials. The corresponding hydrodesulfurization (HDS) catalysts of NiMo/Al-SBA-16@hexane, NiMo/?-Al2O3, and NiMo/Al-SBA-16 were prepared by using different supports respectively, furthermore, their HDS performances were evaluated adopting dibenzothiophene (DBT) as the probe reactant. The DBT HDS efficiencies over these catalysts followed the order: NiMo/Al-SBA-16@hexane > NiMo/?-Al2O3 > NiMo/Al-SBA-16. The high activity of NiMo/Al-SBA-16@hexane can be attributed to the superior diffusivity of the novel support of SBA-16@hexane with ultra-large pore size. 2016 Journal Article http://hdl.handle.net/20.500.11937/31424 10.1016/j.micromeso.2016.01.034 Elsevier BV restricted |
| spellingShingle | Song, S. Zhou, X. Duan, A. Zhao, Z. Chi, K. Zhang, M. Jiang, G. Liu, Jian Li, J. Wang, X. Synthesis of mesoporous silica material with ultra-large pore sizes and the HDS performance of dibenzothiophene |
| title | Synthesis of mesoporous silica material with ultra-large pore sizes and the HDS performance of dibenzothiophene |
| title_full | Synthesis of mesoporous silica material with ultra-large pore sizes and the HDS performance of dibenzothiophene |
| title_fullStr | Synthesis of mesoporous silica material with ultra-large pore sizes and the HDS performance of dibenzothiophene |
| title_full_unstemmed | Synthesis of mesoporous silica material with ultra-large pore sizes and the HDS performance of dibenzothiophene |
| title_short | Synthesis of mesoporous silica material with ultra-large pore sizes and the HDS performance of dibenzothiophene |
| title_sort | synthesis of mesoporous silica material with ultra-large pore sizes and the hds performance of dibenzothiophene |
| url | http://hdl.handle.net/20.500.11937/31424 |