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Iron (III) Oxide within Mesoporous MCM-48 Silica Phases: Synthesis and Characterization

Published online by Cambridge University Press:  16 February 2011

R. Köhna ,
G. Bouffaud ,
O. Richard ,
G. van Tendeloo  and
M. Fröba
R. Köhna
Affiliation:
Institute of Inorganic and Applied Chemistry, University of Hamburg, Martin-Luther-King-Platz 6, D-20146 Hamburg, Germany, [email protected]
G. Bouffaud
Affiliation:
Institute of Inorganic and Applied Chemistry, University of Hamburg, Martin-Luther-King-Platz 6, D-20146 Hamburg, Germany, [email protected]
O. Richard
Affiliation:
EMAT, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium
G. van Tendeloo
Affiliation:
EMAT, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium
M. Fröba
Affiliation:
Institute of Inorganic and Applied Chemistry, University of Hamburg, Martin-Luther-King-Platz 6, D-20146 Hamburg, Germany, [email protected]
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Abstract

Using multiple cycles of wet impregnation, drying and calcination procedures it was possible to form haematite nanoparticles within the pore system of mesoporous MCM-48 silica phase. A decoration/coating of the inner surface of the silica walls was indicated by a reduction of the BET surface area, the pore radius as well as HRTEM and EDX investigations. Existence of small, slightly disordered iron (III) oxide nanoparticles was proved by X-ray absorption spectroscopic measurements.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 547: Symposium DD – Solid-State Chemistry of Inorganic Materials II , 1998 , 81
Copyright
Copyright © Materials Research Society 1999

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