VANADIUM PHOSPHATE SUPPORTED CATALYSTS FOR ETHANE OXIDATIVE DEHYDROGENATION
نویسندگان
چکیده
منابع مشابه
The role of lattice oxygen in the oxidative dehydrogenation of ethane on alumina-supported vanadium oxide.
The oxidative dehydrogenation (ODH) of ethane on alumina-supported vanadia was investigated with the aim of understanding the effects of lattice oxygen and vanadium oxidation state on the catalyst ODH activity and ethene selectivity. Transient-response experiments were carried out with both a fully oxidized sample of 10 wt% VO(x)/Al(2)O(3) (7 V nm(-2)) and a sample that had been partially reduc...
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The effect of the suppport on oxidative dehydrogenation activity for vanadia/ceria systems is examined for the oxidation of methanol to formaldehyde by use of well-defined VO(x)/CeO(2)(111) model catalysts. Temperature-programmed desorption at low vanadia loadings revealed reactivity at much lower temperature (370 K) as compared to pure ceria and vanadia on inert supports such as silica. Densit...
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متن کاملStructure and Properties of Vanadium Oxide–Zirconia Catalysts for Propane Oxidative Dehydrogenation
The structure of vanadia species supported on zirconia depends on VOx surface density and on the temperature of catalyst oxidation pretreatments. X-ray diffraction and Raman and UV-visible spectroscopies show that supported VOx species form polyvanadate domains of increasing size and ultimately monolayers and clusters as vanadium surface density increases. Initial propene selectivities in oxida...
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ژورنال
عنوان ژورنال: Phosphorus Research Bulletin
سال: 1999
ISSN: 0918-4783
DOI: 10.3363/prb1992.10.0_424