Heteroatom effect on hydrodesulphurization activity of TiO2-supported molybdenum heteropolyoxometalates of Anderson type

The properties of the Mo-containing samples (6 wt % Mo) prepared by mechanochemical mixing of Fe, Co, or Ni heteropolymolybdates of Andersen type and the TiO 2 support are reported. A detailed characterization of the surface properties has been performed by BET scanning electron microscopy, IR, XPS...

Full description

Saved in:
Bibliographic Details
Published in:Kinetics and catalysis 2010-06, Vol.51 (3), p.385-393
Main Authors: Spojakina, A. A., Kraleva, E. Y., Jiratova, K.
Format: Article
Language:English
Subjects:
Catalysis
Chemistry
Chemistry and Materials Science
Physical Chemistry
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The properties of the Mo-containing samples (6 wt % Mo) prepared by mechanochemical mixing of Fe, Co, or Ni heteropolymolybdates of Andersen type and the TiO 2 support are reported. A detailed characterization of the surface properties has been performed by BET scanning electron microscopy, IR, XPS and thermo programmed reaction methods and by testing of catalysts in the thiophene conversion. The effects of the mixing time and the nature of heteroatom on the properties of the samples are shown. The nanosized particles are formed when mechanochemical synthesis is running 30 min. The Ni-containing catalyst reveals the highest and the most stable activity compared to Co- and Fe-containing catalysts. Their hydrodesulphurization activity is compared to those of alumina and titania catalysts synthesized by the conventional impregnation method.
ISSN:0023-1584
1608-3210
DOI:10.1134/S0023158410030109