Aggregate Stability and Magnetic Characteristics of Colloidal FemOn-SiO2 Particles Obtained by Sol-Gel Method

O. S. Vezo, K. G. Gareev, D. V. Korolev, I. A. Kuryshev, S. V. Lebedev, V. A. Moshnikov, E. S. Sergienko, P. V. Kharitonskii

Research output

4 Citations (Scopus)

Abstract

Composite FemOn-SiO2 particles have been obtained by precipitation of iron oxide from aqueous solution with the addition of tetraethoxysilane. The shapes and sizes of separate single particles and their aggregates have been determined by scanning electron microscopy. Changes in the stability of the colloidal suspension due to external magnetic field and the addition of NaCl have been evaluated. Based on magnetization curves obtained on a vibrating-sample magnetometer and characteristics calculated within the theoretical model of magnetostatically interacting particles, it is shown that the composite particles are superparamagnetic.

Original languageEnglish
Pages (from-to)1008-1013
Number of pages6
JournalPhysics of the Solid State
Volume59
Issue number5
DOIs
Publication statusPublished - May 2017

Cite this

Vezo, O. S., Gareev, K. G., Korolev, D. V., Kuryshev, I. A., Lebedev, S. V., Moshnikov, V. A., ... Kharitonskii, P. V. (2017). Aggregate Stability and Magnetic Characteristics of Colloidal FemOn-SiO2 Particles Obtained by Sol-Gel Method. Physics of the Solid State, 59(5), 1008-1013. https://doi.org/10.1134/S1063783417050304
Vezo, O. S. ; Gareev, K. G. ; Korolev, D. V. ; Kuryshev, I. A. ; Lebedev, S. V. ; Moshnikov, V. A. ; Sergienko, E. S. ; Kharitonskii, P. V. / Aggregate Stability and Magnetic Characteristics of Colloidal FemOn-SiO2 Particles Obtained by Sol-Gel Method. In: Physics of the Solid State. 2017 ; Vol. 59, No. 5. pp. 1008-1013.
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abstract = "Composite FemOn-SiO2 particles have been obtained by precipitation of iron oxide from aqueous solution with the addition of tetraethoxysilane. The shapes and sizes of separate single particles and their aggregates have been determined by scanning electron microscopy. Changes in the stability of the colloidal suspension due to external magnetic field and the addition of NaCl have been evaluated. Based on magnetization curves obtained on a vibrating-sample magnetometer and characteristics calculated within the theoretical model of magnetostatically interacting particles, it is shown that the composite particles are superparamagnetic.",
keywords = "IRON-OXIDE NANOPARTICLES, NMR RELAXOMETRY, SPECTROSCOPY, FIELD",
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Aggregate Stability and Magnetic Characteristics of Colloidal FemOn-SiO2 Particles Obtained by Sol-Gel Method. / Vezo, O. S.; Gareev, K. G.; Korolev, D. V.; Kuryshev, I. A.; Lebedev, S. V.; Moshnikov, V. A.; Sergienko, E. S.; Kharitonskii, P. V.

In: Physics of the Solid State, Vol. 59, No. 5, 05.2017, p. 1008-1013.

Research output

TY - JOUR

T1 - Aggregate Stability and Magnetic Characteristics of Colloidal FemOn-SiO2 Particles Obtained by Sol-Gel Method

AU - Vezo, O. S.

AU - Gareev, K. G.

AU - Korolev, D. V.

AU - Kuryshev, I. A.

AU - Lebedev, S. V.

AU - Moshnikov, V. A.

AU - Sergienko, E. S.

AU - Kharitonskii, P. V.

PY - 2017/5

Y1 - 2017/5

N2 - Composite FemOn-SiO2 particles have been obtained by precipitation of iron oxide from aqueous solution with the addition of tetraethoxysilane. The shapes and sizes of separate single particles and their aggregates have been determined by scanning electron microscopy. Changes in the stability of the colloidal suspension due to external magnetic field and the addition of NaCl have been evaluated. Based on magnetization curves obtained on a vibrating-sample magnetometer and characteristics calculated within the theoretical model of magnetostatically interacting particles, it is shown that the composite particles are superparamagnetic.

AB - Composite FemOn-SiO2 particles have been obtained by precipitation of iron oxide from aqueous solution with the addition of tetraethoxysilane. The shapes and sizes of separate single particles and their aggregates have been determined by scanning electron microscopy. Changes in the stability of the colloidal suspension due to external magnetic field and the addition of NaCl have been evaluated. Based on magnetization curves obtained on a vibrating-sample magnetometer and characteristics calculated within the theoretical model of magnetostatically interacting particles, it is shown that the composite particles are superparamagnetic.

KW - IRON-OXIDE NANOPARTICLES

KW - NMR RELAXOMETRY

KW - SPECTROSCOPY

KW - FIELD

U2 - 10.1134/S1063783417050304

DO - 10.1134/S1063783417050304

M3 - статья

VL - 59

SP - 1008

EP - 1013

JO - Physics of the Solid State

JF - Physics of the Solid State

SN - 1063-7834

IS - 5

ER -