Synthesis, Structure, and Magnetic Characteristics of Mesoporous Fe2O3–SiO2 Composites


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In this paper, we examine processes for producing mesoporous Fe2O3–SiO2 silica-matrix composites with different fractions of ferric oxide and demonstrate the effect of the synthesis procedure on the structure, textural characteristics, particle size, and magnetic properties of the materials. We assess the thermal stability of the composites. A ferric-oxide-rich material (Fe : Si = 0.6 : 1) prepared by hydrothermal synthesis (THS) exhibits ferrimagnetic properties after high-temperature holding (t = 1000°C) for 3 h.

Sobre autores

N. Kondrashova

Institute of Technical Chemistry, Ural Branch, Russian Academy of Sciences

Autor responsável pela correspondência
Email: Kondrashova_n_b@mail.ru
Rússia, ul. Akademika Koroleva 3, Perm, 614013

A. Lebedev

Institute of Continuous Media Mechanics, Ural Branch, Russian Academy of Sciences

Email: Kondrashova_n_b@mail.ru
Rússia, ul. Akademika Koroleva 1, Perm, 620013

S. Lysenko

Institute of Technical Chemistry, Ural Branch, Russian Academy of Sciences

Email: Kondrashova_n_b@mail.ru
Rússia, ul. Akademika Koroleva 3, Perm, 614013

V. Valtsifer

Institute of Technical Chemistry, Ural Branch, Russian Academy of Sciences

Email: Kondrashova_n_b@mail.ru
Rússia, ul. Akademika Koroleva 3, Perm, 614013

V. Strelnikov

Institute of Technical Chemistry, Ural Branch, Russian Academy of Sciences

Email: Kondrashova_n_b@mail.ru
Rússia, ul. Akademika Koroleva 3, Perm, 614013

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