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VPO catalysts supported on SBA-15 were prepared by adopting a deposition–precipitation method based on organic phases. The unique properties of SBA-15, such as high surface area, large pore volume, and large pore size, enable good dispersion of VPO species in crystalline form. A mixture of iso-butyl/benzyl alcohols is more suitable than a single iso-butanol phase for the loading of VPO, and crystallized...
The catalytic behavior of the cesium salts of heteropolyacids with vanadium species substituted at the primary and/or secondary structure of Keggin oxoanions was systematically studied for propane partial oxidation. The physicochemical properties of the samples were explored by FTIR, UV–visible diffuse reflectance spectroscopy, XRD, and TPR techniques. The introduction of vanadium species to the primary...
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