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Characteristics and Applications of Nanostructured Nitrides Synthesized by Vapor Phase Reactions

Published online by Cambridge University Press:  15 February 2011

Gerald Ziegenbalg ,
Carsten Pätzold ,
Ute Ŝingliar  and
Rico Berthold
Gerald Ziegenbalg
Affiliation:
TU Bergakademie Freiberg, Institute of Technical Chemistry, Leipziger Strasse 29, 09599 Freiberg, Germany
Carsten Pätzold
Affiliation:
TU Bergakademie Freiberg, Institute of Technical Chemistry, Leipziger Strasse 29, 09599 Freiberg, Germany
Ute Ŝingliar
Affiliation:
TU Bergakademie Freiberg, Institute of Technical Chemistry, Leipziger Strasse 29, 09599 Freiberg, Germany
Rico Berthold
Affiliation:
TU Bergakademie Freiberg, Institute of Technical Chemistry, Leipziger Strasse 29, 09599 Freiberg, Germany
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Abstract

Gas phase ammonolysis of volatile metal chlorides at elevated temperatures is a favorable way to produce nitride or oxynitride nanopowders. Their composition as well as the physico-chemical properties is determined by reaction temperature, molar ratio of the reactants and the residence time of the gases in the reaction zone. Both single and multi component powders can be obtained. Typical particle sizes are in the range of 50 to 350 nm. The specific surface can reach values up to 300 m2/g. Microporous analysis revealed the presence of pores with a diameter between 0.6 and 0.7 nm in amorphous silicon nitride. The powders can be used, depending on the characteristics, as catalyst or basic catalyst support. The paper gives an overview about vapor phase synthesis of single and multi component nitrides as well as the use of amorphous silicon nitride as a basic catalyst support for dehydrogenation of propane.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 876: Symposium A – Nanoporous and Nanostructured Materials for Catalysis, Sensor and Gas Separation Applications , 2005 , R8.51
Copyright
Copyright © Materials Research Society 2005

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References

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