Catalysis Letters

, Volume 4, Issue 2, pp 181–189 | Cite as

Laser Raman and DTA/TGA study of H3+nPV n Mo12-nO40 heteropolyacids pure and supported on K3PMo12O40

  • K. Bruckman
  • J. Haber
  • E. M. Serwicka
  • E. N. Yurchenko
  • T. P. Lazarenko
Article
Received:
Accepted:

Abstract

According to TGA/DTA data thin layers of H3+nPVnMo12-nO40 heteropolyacids impregnated on K3PMo12O40 support display increased thermal stability. Raman spectroscopy proves that these deposited, catalytically significant, acid layers represent a new structural quality and tend to retain certain number of crystallization water molecules. It is argued that the acids become stabilized due to the epitaxial relationship with the support, and the isomorphous acid layers are tenatively described as hexahydrates of the respective acids.

Keywords

Spectroscopy Physical Chemistry Crystallization Catalysis Water Molecule 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Copyright information

© J.C. Baltzer A.G. Scientific Publishing Company 1990

Authors and Affiliations

  • K. Bruckman
    • 1
  • J. Haber
    • 1
  • E. M. Serwicka
    • 1
  • E. N. Yurchenko
    • 2
  • T. P. Lazarenko
    • 2
  1. 1.Institute of Catalysis and Surface ChemistryPolish Academy of Sciencesul. Niezapominajek IPoland
  2. 2.Institute of CatalysisSibirian Branch of the Academy of Sciences USSRNovosibirskUSSR

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