Mesoporous redox molecular sieves analogous to MCM-41

The synthesis of MCM-41 analogue mesoporous metallosilicates with high specific surfaces, containing the redox active metals Ti, V, Cr, Mn, Fe, or Co, from an aqueous gel, under reflux is described. Their X-ray diffractograms reveal a highly ordered array of the mesopores. A strong host-guest intera...

Full description

Saved in:
Bibliographic Details
Published in:Zeolites 1997, Vol.18 (5), p.408-416
Main Authors: Carvalho, Wagner A., Varaldo, Paula B., Wallau, Martin, Schuchardt, Ulf
Format: Article
Language:English
Subjects:
Chemistry
Exact sciences and technology
General and physical chemistry
Ion-exchange
liquid phase oxidation of cyclohexane
MCM-41
Mesoporous metallosilicates
Other ion exchangers: preparations and properties
redox molecular sieves
spectroscopic characterization
Surface physical chemistry
synthesis
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 synthesis of MCM-41 analogue mesoporous metallosilicates with high specific surfaces, containing the redox active metals Ti, V, Cr, Mn, Fe, or Co, from an aqueous gel, under reflux is described. Their X-ray diffractograms reveal a highly ordered array of the mesopores. A strong host-guest interaction between the incorporated template molecules and the pore walls, observed by 13C n.m.r., indicates the incorporation of the metals, which is further evidenced by u.v.-vis and 29Si n.m.r. spectroscopy. These mesoporous metallosilicates are active as catalysts for the liquid phase oxidation of cyclohexane with aqueous H 2O 2 or tert-butyl hydroperoxide.
ISSN:0144-2449
1873-3115
DOI:10.1016/S0144-2449(97)00031-6