Cuvillier Verlag

Publications, Dissertations, Habilitations & Brochures.
International Specialist Publishing House for Science and Economy

Cuvillier Verlag

De En Es
Novel Ammoxidation Catalysts based on Vanadium Containing Oxynitrides

Hard Copy
EUR 26.60 EUR 25.27

EUR 0.00

PDF (3.1 MB)
Open Access CC BY 4.0

Novel Ammoxidation Catalysts based on Vanadium Containing Oxynitrides (English shop)

Impact of Structure on the Catalytic Performance

Christiane Janke (Author)


Table of Contents, Datei (40 KB)
Extract, Datei (110 KB)

ISBN-13 (Printausgabe) 3954040379
ISBN-13 (Hard Copy) 9783954040377
ISBN-13 (eBook) 9783736940376
Language English
Page Number 154
Lamination of Cover glossy
Edition 1 Aufl.
Volume 0
Publication Place Göttingen
Place of Dissertation Rostock
Publication Date 2012-02-28
General Categorization Dissertation
Departments Chemistry

The potential of a new catalyst class based on vanadium containing oxynitrides has been explored in the ammoxidation of 3-picoline (3-PIC) to 3-cyanopyridine (3-CP). So far, mixed oxides of the type SbVTiSiO belong to the best catalysts for this reaction, however, space-time yields (STY) did not exceed 150 g/lh. Improving STY while maintaining high 3-CP selectivity would be energetically most sustainable. Therefore, ternary VAlZrON and VZrPON, binary VMoON and VSbON oxynitrides as well as VMON/MoxOyNz (M = Al or Zr) catalysts have been investigated for their catalytic performance and structure-reactivity relationships. With VZrAlON catalysts, highest STY values ever measured have been obtained, while VSbON catalysts bear a great potential, too. By spectroscopic multimethod analysis, applied ex and in situ, structure-reactivity relationships have been proposed. The presence of direct V-N junctions and anionic surface defects are essential for high nitrile selectivity. This is the best fulfilled for VZrAlON, VMoON and VSbON catalysts.