Temperature-programmed reduction and acidic properties of molybdenum supported on MgO–Al2O3 and their correlation with catalytic activity
IR@IIP: CSIR-Indian Institute of Petroleum, Dehradun
View Archive Info| Field | Value | |
| Creator |
Manoj, Kumar
Aberuagba,F Gupta,J.K Sharma,L.D Murali Dhar,G Rawat,K.S |
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| Date |
2009-07-01T11:05:29Z
2009-07-01T11:05:29Z 2009-07-01T11:05:29Z |
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| Identifier |
Journal of Molecular Catalysis A: Chemical 213 (2004) 217–223
http://hdl.handle.net/123456789/284 |
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| Description |
Aseries of catalyst withMoloading from 2 to 14 wt.% on MgO–Al2O3 mixed oxide supportwas prepared by incipient wetness impregnation
method. Pure MgO and Al2O3 were prepared by using Mg(NO3)2·6H2O and Al(NO3)3·9H2O salt solutions and urea as hydrolyzing agent.
MgO–Al2O3 (1:1) mixed oxide was prepared by co-precipitation of appropriate quantities of magnesium nitrate and aluminum nitrate salts.
BET surface area, pore volume, pore size distribution, TPR, acidity and acid strength distributions of catalysts and supports were measured.
MgO–Al2O3 (1:1) mixed oxide showed a biomodal pore size distribution. LTOCand TPR results showthat an optimum8%Moon MgO–Al2O3
is sufficient to form MoO3 monolayer. TPR technique can also be used as a vital tool to determine the monolayer coverage. HDS activity has
been correlated with LTOC. Introduction of basic MgO in the lattice of Al2O3 moderates the strong acidity in MgO–Al2O3. Impregnation of
acidic MoO3 species further enhances the acidity favorable for HYC.
Keywords: TPR; Acidity; Mixed oxides; Catalytic activity
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| Language |
en_US
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| Subject |
Catalytic activity
TPR Mixed oxides |
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| Title |
Temperature-programmed reduction and acidic properties of molybdenum supported on MgO–Al2O3 and their correlation with catalytic activity
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| Type |
Article
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