Some Physico-chemical Properties of Vanadium Oxide Supported on Silica or γ-Alumina
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概要
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The interactions between vanadium(V) oxide and carriers were investigated in the vanadium oxide catalysts supported on silica and γ-alumina by measuring X-ray diffraction patterns, ESR spectra, solubilities into 0.3 N ammoniacal solutions and reduction rates by benzene. A part of vanadium oxide on the carriers was insoluble in an ammoniacal solution, while unsupported vanadium oxide was easily soluble, and the reduction rates of the catalysts were remarkably affected by the carriers and the vanadium oxide contents. ESR spectra revealed that the vanadium oxide was stabilized by interaction with carriers as a square pyramidal one (VO<SUB>5</SUB>) and a tetrahedral one (VO<SUB>4</SUB>) on the surfaces of γ-alumina and silica, respectively. Massive vanadium(V) oxide crystals grew on these interacted layers with the increase of the oxide contents.
- 公益社団法人 日本化学会の論文
著者
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Ishida Shingo
Department Of Chemical Engineering And Materials Science Faculty Of Engineering Doshisha University
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Yoshida Satohiro
Department Of Hydrocarbon Chemistry And Division Of Molecular Engineering Faculty Of Engineering Kyo
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Tarama Kimio
Department of Hydrocarbon Chemistry, Faculty of Engineering, Kyoto University
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Ishida Shingo
Department of Hydrocarbon Chemistry, Faculty of Engineering, Kyoto University
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Iguchi Toshikatsu
Department of Hydrocarbon Chemistry, Faculty of Engineering, Kyoto University
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