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The role of acidity of MoO3−SiO2 and WO3−SiO2 catalysts

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Abstract

The acidity of various MoO3−SiO2 and WO3 catalysts has been measured by means of ammonia adsorption. Whereas the acidity of silica and pure metal oxides is very low, an increase of surface acidity results from a reaction between silica support and metal oxides. A significant correlation between surface acidity and catalytic activity for aromatization of lower olefines could be found.

Abstract

Измерена кислотность разных катализаторов MoO3−SiO2 и WO3 с помощью адсорбции аммиака. Кислотность поверхности SiO2 и чистых металлов. очень низка, но она повышается вследствие реакции носителя SiO2 с окисями металлов. Наблюдается корреляция между кислотностью поверхности и каталитической активностью в ароматизации низших олефинов.

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  1. Sektion Chemie, Wissenschaftsbereich Technische Chemie, Martin-Luther-Universität Halle-Wittenberg, Schloßberg 2, 402, Halle, DDR

    F. Janowski, A. Sofianos & F. Wolf

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  1. F. Janowski
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  2. A. Sofianos
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  3. F. Wolf
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Janowski, F., Sofianos, A. & Wolf, F. The role of acidity of MoO3−SiO2 and WO3−SiO2 catalysts. React Kinet Catal Lett 12, 157–163 (1979). https://doi.org/10.1007/BF02071904

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  • DOI: https://doi.org/10.1007/BF02071904

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