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Title
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The creation of hydrophobic, stable MCM-48/VO catalysts, using alkylchlorosilanes as coupling agents for the deposition of VO surface structures
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Author
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Abstract
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| The use of dimethyldichlorosilane as I coupling agent for the grafting of VOx structures on the MCM-48 surface, produces a material that is simultaneously hydrophobic (immiscible with water) and very active (all V-centers are accessible). The VOx surface species are grafted by the Molecular Designed Dispersion of VO(acac)2 on the silylated surface, followed by calcination in air at 450 degreesC. These hydrophobic MCM-48 supported VOx catalysts are stable up to 500 degreesC and shaw a dramatic reduction in the leaching of the V-centers in aqueous media. Also the structural stability has improved enormously. The crystallinity of the materials does not decrease significantly, not even when the samples are subjected to a hydrothermal treatment at 160 degreesC and 6.1 atm. pressure. |
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Language
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English
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Source (book)
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2nd Pacific Basin Conference on Adsorption Science and Technology, May 14-18, 2000, Brisbane, Australia
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Publication
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Singapore
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World Scientific
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2000
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ISBN
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981-02-4263-8
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DOI
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10.1142/9789812793331_0129
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Volume/pages
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(2000)
, p. 648-652
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ISI
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000165694900129
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Full text (Publisher's DOI)
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