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Preparation, structure, and magnetic properties of cobalt nanoparticles in carbon fibers

Published online by Cambridge University Press:  31 January 2011

I. Bashmakov ,
V. Dorosinez ,
M. Lukashevich ,
A. Mazanik ,
T. Tihonova ,
T. Zabel ,
B. Wiedenhorst  and
H. Micklitz
I. Bashmakov
Affiliation:
Departments of Chemistry and Physics, Belarus State University, F. Skarina av. 4, 220080 Minsk, Belarus
V. Dorosinez
Affiliation:
Departments of Chemistry and Physics, Belarus State University, F. Skarina av. 4, 220080 Minsk, Belarus
M. Lukashevich
Affiliation:
Departments of Chemistry and Physics, Belarus State University, F. Skarina av. 4, 220080 Minsk, Belarus
A. Mazanik
Affiliation:
Departments of Chemistry and Physics, Belarus State University, F. Skarina av. 4, 220080 Minsk, Belarus
T. Tihonova
Affiliation:
Departments of Chemistry and Physics, Belarus State University, F. Skarina av. 4, 220080 Minsk, Belarus
T. Zabel
Affiliation:
II. Physical Institute, University of Koeln, Zuelpicherstrasse 77, 50937, Koeln, Germany
B. Wiedenhorst
Affiliation:
II. Physical Institute, University of Koeln, Zuelpicherstrasse 77, 50937, Koeln, Germany
H. Micklitz
Affiliation:
II. Physical Institute, University of Koeln, Zuelpicherstrasse 77, 50937, Koeln, Germany
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Abstract

Samples of Co clusters embedded in a carbon fiber matrix have been prepared using a heat-treatment method of cellulose fibers with ion-absorbed cobalt cations. Depending on the heat-treatment temperature used, different cluster sizes have been obtained, ranging from superparamagnetic clusters (average size 10 nm) to ferromagnetic nanoparticles (size between 30 and 200 nm). The formation of graphite planes surrounding the nanoparticles has been observed.

Type
Articles
Information
Journal of Materials Research , Volume 16 , Issue 10 , October 2001 , pp. 2832 - 2835
Copyright
Copyright © Materials Research Society 2001

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