Abstract
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.
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CITATION STYLE
Surowiec, Z., Bierska-Piech, B., Wiertel, M., Budzyński, M., & Goworek, J. (2008). Magnetic nanoparticles in MCM-41 type mesoporous silica. In Acta Physica Polonica A (Vol. 114, pp. 1605–1613). Polish Academy of Sciences. https://doi.org/10.12693/APhysPolA.114.1605
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