3-D ordered mesoporous KIT-6 support for effective hydrodesulfurization catalysts
IR@IIP: CSIR-Indian Institute of Petroleum, Dehradun
View Archive Info| Field | Value | |
| Creator |
Soni, K
Rana, B.S Sinha, A.K Bhaumik, A Nandi, M Manoj, Kumar Dhar, G.M |
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| Date |
2010-07-26T05:52:24Z
2010-07-26T05:52:24Z 2010-07-26T05:52:24Z |
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| Identifier |
Applied Catalysis B: Environmental 90 (2009) 55–63
http://hdl.handle.net/123456789/720 |
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| Description |
KIT-6 silica with well-ordered 3-D mesoporosity was developed as support for Mo, CoMo and NiMo
catalysts. TEM and low-angle XRD analyses were used to ensure that the cubic Ia3d mesostructure is
stable after Mo and promoter incorporation. The wide-angle XRD (as well O2-chemisorption analysis)
was used to verify MoO3 (and MoS2) dispersion, with crystallite size <40A˚ . The IR spectral studies were
used to determine the nature of Mo species (octahedral and tetrahedral) and their growth with
increasing Mo loading. TPR studies were also used to understand the nature of Mo species and their
reducibility. A linear correlation was obtained between catalytic activities and oxygen uptakes
suggesting that the increase in anion vacancies were responsible for the observed variation of
hydrodesulfurization and hydrogenation activities. A comparison with g-Al2O3 and SBA-15 supported
catalysts shows superior activities of KIT-6 supported catalysts which is attributable to 3-D mesopore
connectivity resulting in better catalyst dispersion, higher reducibility of Mo, and faster diffusion of
reactant and products in the KIT-6 supported catalysts.
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| Language |
en_US
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| Subject |
Mesoporous
Hydrodesulfurization |
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| Title |
3-D ordered mesoporous KIT-6 support for effective hydrodesulfurization catalysts
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| Type |
Article
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