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Dispersity of platinium on porous glasses and silica

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Abstract

Hydrogen adsorption has been investigated in order to determine the dispersity of platinum supported on different silicon-containing materials, such as porous glasses, silica and acid treated silica. The acid treatment of silica results in more dispersed platinum as compared with silica and porous glasses. The influence of pore size distribution as a further important factor on Pt-crystallite distribution and dispersity is discussed.

Abstract

Была исследована адсорбция водорода с целью определения дисперсии платины, нанесенной на различные материалы с высокими содержаниями кремния, а именно на пористые стекла, SiO2 и SiO2, обработанный кислотой. Показано, что обработка SiO2 кислотой приводит к большей дисперности платины по сравнению с SiO2 и пористыми стеклами. Обсуждается влияние распределения размера пор, как друтого важного фактора, на распределение размеров платиновых кристаллитов и на дисперсность.

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Authors and Affiliations

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

    F. Janowski & F. Wolf

Authors
  1. F. Janowski
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  2. F. Wolf
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Janowski, F., Wolf, F. Dispersity of platinium on porous glasses and silica. React Kinet Catal Lett 6, 253–258 (1977). https://doi.org/10.1007/BF02084206

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  • DOI: https://doi.org/10.1007/BF02084206

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