Reaction Kinetics and Catalysis Letters

, Volume 13, Issue 1, pp 45–49 | Cite as

Catalytic and physico-chemical properties of Al2O3−H3PO4 system, II. Donor-acceptor properties

  • A. Krzywicki
  • M. Marczewski


Donor-acceptor properties of catalysts containing different quantities of orthophosphoric acid on γ-alumina were studied. The decrease in N2O decomposition rate was found to be parallel with that of one-electron donor sites. Catalysts containing more than 0.4 mmol H3PO4/g Al2O3 exhibit individual surface properties due to the formation of an aluminium phosphate phase in the surface layer.


Aluminium Phosphate Al2O3 Catalysis Surface Layer 
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Изучались донорно-акцепторные свойства катализаторов, содержащих разные колличества ортофосфорной кислоты на γ-Al2O3. Найдено, что скорость разложения N2O уменьшается параллельно к уменыпению количества одноэлектронных донорных центров. Катализаторы, содержащие бодее 0,4 ммоль H3PO4/г Al2O3 обнаруживают индивидуальные поверхностные свойства вследствие образования фазы фосфата алюминия в поверхностном слое.


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Copyright information

© Akadéemiai Kiadù 1980

Authors and Affiliations

  • A. Krzywicki
    • 1
  • M. Marczewski
    • 1
  1. 1.Institute of Organic Chemistry and TechnologyWarsaw Technical UniversityWarszawaPoland

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