ITEM METADATA RECORD
Title: Oxidation catalysis with well-characterised vanadyl bis-bipyridine complexes encapsulated in NaY zeolite
Authors: Knops-Gerrits, P ×
Trujillo, CA
Zhan, BZ
Li, XY
Jacobs, Pierre #
Issue Date: 1996
Publisher: BALTZER SCI PUBL BV
Series Title: Topics in catalysis vol:3 issue:3-4 pages:437-449
Conference: date:HONG KONG UNIV SCI & TECHNOL,DEPT CHEM,KOWLOON,HONG KONG; CATHOLIC UNIV LEUVEN,UNITE CHIM INTERFACES,LOUVAIN,BELGIUM
Abstract: Vanadyl exchanged faujasite (VO2+-NaY) allows bipyridine complexation, giving a heterogeneous ''ship-in-a-bottle'' catalyst denoted as [VO(bpy)(2)](2+)-NaY. The [VO(bpy)(2)](2+) complexes associated with the zeolite are characterised with FT-Raman, FT-IR, XPS, and diffuse reflectance spectroscopy (DRS), as well as with electron paramagnetic resonance (EPR). It is established that the cationic complexes are intrazeolitic and homogeneously distributed across the zeolite crystals and both the zeolite and the neutral bipyridine ligands stabilise V-IV. The catalytic oxidation of cyclohexane and cyclohexene with different peroxides or mono-oxygen atom donors in presence of several solvents is described. Good epoxide selectivity results from the complexation by bipyridine thus favoring the heterolytic over the homolytic decomposition pathway of V-peroxo-intermediates.
ISSN: 1022-5528
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Centre for Surface Chemistry and Catalysis
× corresponding author
# (joint) last author

Files in This Item:

There are no files associated with this item.

Request a copy

 




All items in Lirias are protected by copyright, with all rights reserved.

© Web of science