On the Behavior of O<SUB>2</SUB><SUP>−</SUP> and O<SUP>−</SUP> Radicals over V<SUB>2</SUB>O<SUB>5</SUB>–SiO<SUB>2</SUB> Catalyst
スポンサーリンク
概要
- 論文の詳細を見る
The behavior of oxygen, O<SUB>2</SUB><SUP>−</SUP> and O<SUP>−</SUP> radicals adsorbed on the partially reduced V<SUB>2</SUB>O<SUB>5</SUB>–SiO<SUB>2</SUB> catalysts has been investigated. Oxygen is adsorbed mainly in a molecular state at room temperature, the sum of amounts of paramagnetic adsorbed species O<SUB>2</SUB><SUP>−</SUP> and O<SUP>−</SUP> being less than 10% of total amount of adsorbed oxygen. High degree of reduction, high content of V<SUB>2</SUB>O<SUB>5</SUB> and low pressure of oxygen at adsorption equilibrium are favorable for the formation of O<SUP>−</SUP> radical. It was confirmed by the quantitative analysis of reaction products and the adsorbed species that O<SUB>2</SUB><SUP>−</SUP>, not O<SUP>−</SUP>, is the active species in the oxidation of propylene at room temperature. A mechanism involving an intermediate of an epoxide structure was proposed.
- 公益社団法人 日本化学会の論文
著者
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Matsuzaki Tokuo
Department Of Electronics Faculty Of Engineering Kyoto University:(present Address) Central Research
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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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Mori Kozo
Department of Hydrocarbon Chemistry, Faculty of Engineering, Kyoto University
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Kashiwazaki Tomonori
Department of Hydrocarbon Chemistry, Faculty of Engineering, Kyoto University
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