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Electron Energy Loss Spectroscopy on Aggregated Fe-Cu-B Nanosized Particles

Published online by Cambridge University Press:  02 July 2020

N. Duxin ,
N. Brun ,
C. Colliex  and
M. P. Pileni
N. Duxin
Affiliation:
Laboratoire “Structure et Réactivité des Systèmes Interfaciaux”, CNRS URA 1662, Université Pierre et Marie Curie, BP 52, 4 place Jussieu, 75 005 Paris, France et CEA-DSM-DRECAM, Service de Chimie Moléculaire, CEA Saclay, 91 191 Gif sur Yvette cedex, France
N. Brun
Affiliation:
Laboratoire de Physique des Solides, CNRS URA 002, Bât. 510, Université Paris-Sud, 91 405Orsay cedex, France
C. Colliex
Affiliation:
Laboratoire de Physique des Solides, CNRS URA 002, Bât. 510, Université Paris-Sud, 91 405Orsay cedex, France
M. P. Pileni
Affiliation:
Laboratoire “Structure et Réactivité des Systèmes Interfaciaux”, CNRS URA 1662, Université Pierre et Marie Curie, BP 52, 4 place Jussieu, 75 005 Paris, France et CEA-DSM-DRECAM, Service de Chimie Moléculaire, CEA Saclay, 91 191 Gif sur Yvette cedex, France
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Extract

Nanostructured materials have attracted great attention because their physical and chemical properties may differ significantly from those of the bulk material. In the equilibrium state, the solid solubility between Fe and Cu is negligibly small. However by using methods as vapor quenching, ball milling or chemical reduction, a Fe-Cu solid solution can be formed. In the present work, colloidal solutions incorporating mixtures of iron (II) and copper (II) functionalized surfactants are used to obtain FexCu 1-x(B) alloys and composite. Different ranges of composition (x=0.3 and x=0.7) can be produced by varying the relative concentration of the surfactants.

The samples are characterized by different techniques, some of them such as X-ray diffraction, 57Fe Mössbauer spectroscopy, and magnetization measurements, provide an information averaged over the whole specimen. Transmission Electron Microscopy, together with electron diffraction and EDS analysis, constitutes a first step towards submicrometer analysis of the produced material available as aggregates of nanosized particles deposited on holey carbon films.

Type
Nanocrystals and Nanocomposites: Novel Structures for Catalysis, Electronics, and Micromechanics
Information
Microscopy and Microanalysis , Volume 3 , Issue S2: Proceedings: Microscopy & Microanalysis '97, Microscopy Society of America 55th Annual Meeting, Microbeam Analysis Society 31st Annual Meeting, Histochemical Society 48th Annual Meeting, Cleveland, Ohio, August 10-14, 1997 , August 1997 , pp. 439 - 440
Copyright
Copyright © Microscopy Society of America 1997

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References

Tencé, M.et al., Ultramicroscopy 58(1995)42.10.1016/0304-3991(94)00177-OCrossRefGoogle Scholar
Colliex, C. in Bagus, P.S.et al., Eds., Core Level Spectroscopies for Magnetic Phenomena, New York:Plenum Press (1995) 213.10.1007/978-1-4757-9871-5_13CrossRefGoogle Scholar
Duxin, N., Petit, C., Brun, N., Bonville, P., Colliex, C., Pileni, M. P., to be published.Google Scholar