Spectroscopic characterization and catalytic performances of Iron substituted three dimensional cubic SBA-1 and KIT-5 mesoporous molecular sieves

Vinu, A., Chandrasekar, G., Hartmann, M. and Ariga, K. (2005) Spectroscopic characterization and catalytic performances of Iron substituted three dimensional cubic SBA-1 and KIT-5 mesoporous molecular sieves. Studies in Surface Science and Catalysis, 156 703-710.

Author Vinu, A.
Chandrasekar, G.
Hartmann, M.
Ariga, K.
Title Spectroscopic characterization and catalytic performances of Iron substituted three dimensional cubic SBA-1 and KIT-5 mesoporous molecular sieves
Journal name Studies in Surface Science and Catalysis   Check publisher's open access policy
ISSN 0167-2991
ISBN 0-444-51748-0
Publication date 2005-01
Sub-type Article (original research)
Volume 156
Start page 703
End page 710
Total pages 8
Place of publication Amsterdam, Netherlands
Publisher Elsevier
Language eng
Formatted abstract
A range of iron containing cubic mesoporous molecular sieves FeSBA-1 and FeKIT-5 with different nSi/nFe ratios have been synthesized hydrothermally and characterized in detail by physicochemical methods, viz. XRD, N2 adsorption, elementary analysis, UV-Vis, and ESR spectroscopy. UV-Vis and ESR spectroscopy suggest that the majority of the Fe atoms in FeSBA-1 and FeKIT-5 are in tetrahedral coordination most probably occupying framework positions. The catalytic activity of the novel catalyst was investigated in the vapor phase tert.-butylation of phenol. FeSBA-l(36) was found to be more active than other mesoporous materials such as FeKIT-5, FeAlMCM-41 or sulfated zirconia. The observed phenol conversion of 78.8 % (S4-TBP = 70 %) is significantly higher as compared to other mono and bimetal substituted uni-dimensional MCM-41 molecular sieves under optimized reaction conditions.
Keyword Molecular sieves
Cubic mesoporous
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Australian Institute for Bioengineering and Nanotechnology Publications
 
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