Magnetic Nanoparticles in MCM-41 Type Mesoporous Silica

• Authors: Z. Surowiec , B. Bierska-Piech , M. Wiertel , M. Budzyński , J. Goworek
• Languages of publication: EN

Abstracts

EN

Structural phase transformations and magnetic properties of mesoporous MCM-41 template modified with iron and nickel salts were studied by nitrogen physisorption, X-ray diffraction, Mössbauer spectroscopy and transmission electron microscopy. The FeNi-oxide or the bimetallic crystal structure is formed for low and high Ni concentrations, respectively. The average size of nanoparticles is about 10 nm. About 70% of particles exist in a superparamagnetic state at room temperature.

Keywords

EN

78.67.Bf; 81.07.Bc; 76.80.+y

Discipline

• 78.67.Bf: Nanocrystals, nanoparticles, and nanoclusters
• 76.80.+y: Mössbauer effect; other γ-ray spectroscopy(see also 33.45.+x Mössbauer spectra—in atomic and molecular physics; for biophysical applications, see 87.64.kx; for chemical analysis applications, see 82.80.Ej)
• 81.07.Bc: Nanocrystalline materials

• Journal: Acta Physica Polonica A
• Year: 2008
• Volume: 114
• Issue: 6
• Pages: 1605-1613

Dates

published

2008-12

Contributors

author

Z. Surowiec

• Institute of Physics, M. Curie-Skłodowska University, pl. M. Curie-Skłodowskiej 1, 20-031 Lublin, Poland

author

B. Bierska-Piech

• Institute of Materials Science, University of Silesia, Bankowa 12, 40-007 Katowice, Poland

author

M. Wiertel

• Institute of Physics, M. Curie-Skłodowska University, pl. M. Curie-Skłodowskiej 1, 20-031 Lublin, Poland

author

M. Budzyński

• Institute of Physics, M. Curie-Skłodowska University, pl. M. Curie-Skłodowskiej 1, 20-031 Lublin, Poland

author

J. Goworek

• Department of Adsorption, Faculty of Chemistry, Maria Curie-Skłodowska University, pl. M. Curie-Skłodowskiej 1, 20-031 Lublin, Poland

References

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Identifiers

DOI

10.12693/APhysPolA.114.1605