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A Study of Spreading of Vanadia on Titania Polymorphs Using Mechanical Mixtures

In English

Författare

Redaktör

  • L Guczi et al

Summary, in English

Mechanical mixtures of V2O5 and each of the three titania polymorphs TiO2(B), anatase and rutile were heated in air at 450°C. Spreading of vanadia was found to occur on all three polymorphs. After 36 hours of heating, coverage with interacting vanadia (the part that is insoluble in aq. NH3) on TiO2(B), anatase and rutile, respectively, was 54, 48 and 38 % of a theoretical monolayer. Raman spectra confirmed spreading and interaction. HREM images revealed no formation of multilayers of vanadia on titania. Use of the monolayer catalysts for toluene ammoxidation indicated their activity for benzonitrile formation to vary with respect to support in the order TiO2(B) > anatase > rutile.

Publiceringsår

1993

Språk

Engelska

Sidor

1755-1758

Publikation/Tidskrift/Serie

New Frontiers in Catalysis (Studies in Surface Science and Catalysis )

Volym

75

Dokumenttyp

Konferensbidrag

Förlag

Elsevier

Ämne

  • Production Engineering, Human Work Science and Ergonomics
  • Chemical Engineering
  • Chemical Sciences

Conference name

The 10th International Congress on Catalysis

Conference date

1992-07-19 - 1992-07-24

Conference place

Budapest, Hungary

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 0167-2991