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Bifunctional Pt/H-beta and Pt/H-MOR catalysts were prepared under various pretreatment conditions and applied to the isomerization of n-hexane. Pt/H-beta gave rise to the higher yield of high octane dimethylbutanes than the commercial Pt/H-MOR. To explain this result, both the dispersion and distribution of Pt clusters in the zeolite channels were investigated. The acidity and the distribution of...
In this work, various Al 2 O 3 /SiO 2 /TiO 2 nanocomposites prepared from organic precursors through a sol-gel method and loaded with vanadium were studied for the selective catalytic reduction of NO x with ammonia as a reductant. The coexistence of Al and Si as heteroatoms in the titania matrix resulted in lower levels of activity than titania catalysts due...
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