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Molecular oxidic phases of diluted silica supported vanadia

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Abstract

Different surface phases of silica supported vanadia catalysts have been characterized by static adsorption, reduction, and reoxidation experiments under vacuum conditions. The obvious mobility of vanadium involved in some preparation steps gives rise to a diversification of initial precursor phases as a function of pretreatment conditions and SiOH concentration.

Abstract

Различные поверхностные фазы ванадиевых катализаторов на носителе SiO2 были охарактеризованы статической адсорбцией, а также экспериментами восстановления и реокисления в условиях вакуума. Очевидная подвижностя ванадия, участвующего в некоторых ступенях получения, приводит к увеличению разнообразия исходных фаз прекурсора в зависимости от условий предварительной обработки и концентрации SiOH.

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Authors and Affiliations

  1. Central Institute of Physical Chemistry, Academy of Sciences of the GDR, 1199, Berlin, GDR

    M. Richter, K. Heise & G. Öhlmann

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  1. M. Richter
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  2. K. Heise
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  3. G. Öhlmann
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Richter, M., Heise, K. & Öhlmann, G. Molecular oxidic phases of diluted silica supported vanadia. React Kinet Catal Lett 27, 109–114 (1985). https://doi.org/10.1007/BF02064468

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  • DOI: https://doi.org/10.1007/BF02064468

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