Synthesis and characterization of orthorhombic, 2d-centered rectangular and lamellar iron oxide doped silica films

Abstract

Iron oxide doped silica films and powders with highly ordered mesostructures of extraordinary temperature stability (up to 1000 degrees C) and iron loading of up to 6 atom% were produced by the use of novel iron alkoxide-coordinated surfactants. Wormhole-like, 2d-centered rectangular, orthorhombic and lamellar mesostructures were obtained by variation of the molar ratios of the metal-surfactant complexes. The influence of a subsequent heat treatment was studied by GI-SAXS, TEM, XRD, and nitrogen sorption techniques. The molecular composition of the films was studied by XPS and EXAFS.

Keywords

ORDERED MESOPOROUS SILICAS; RAY-ABSORPTION-SPECTRUM; THIN-FILMS; PHASE-TRANSFORMATION; PRE-EDGE; COMPLEXES; TRANSITION; SCATTERING; OXIDATION; BEHAVIOR

Published in

Journal of Materials Chemistry
2006, volume: 16, number: 45, pages: 4443-4453
Publisher: ROYAL SOC CHEMISTRY

SLU Authors

• Kessler, Vadim

  • Department of Molecular Sciences, Swedish University of Agricultural Sciences
    

• Seisenbaeva, Gulaim

  • Department of Molecular Sciences, Swedish University of Agricultural Sciences
    

UKÄ Subject classification

Inorganic Chemistry

Publication identifier

• DOI: https://doi.org/10.1039/b606386a

Permanent link to this page (URI)

https://res.slu.se/id/publ/9854