Magnetic Cobalt and Cobalt Oxide Nanoparticles in Hyperbranched Polyester Polyol Matrix

O. I. Medvedeva; S. S. Kambulova; O. V. Bondar; A. R. Gataulina; N. A. Ulakhovich; A. V. Gerasimov; V. G. Evtugyn; I. F. Gilmutdinov; M. P. Kutyreva

doi:10.1155/2017/7607658

Journal of Nanotechnology (Jan 2017)

Magnetic Cobalt and Cobalt Oxide Nanoparticles in Hyperbranched Polyester Polyol Matrix

O. I. Medvedeva,
S. S. Kambulova,
O. V. Bondar,
A. R. Gataulina,
N. A. Ulakhovich,
A. V. Gerasimov,
V. G. Evtugyn,
I. F. Gilmutdinov,
M. P. Kutyreva

Affiliations

O. I. Medvedeva: Department of Inorganic Chemistry, Kazan Federal University, 18 Kremlyovskaya St., Kazan 420008, Russia
S. S. Kambulova: Department of Inorganic Chemistry, Kazan Federal University, 18 Kremlyovskaya St., Kazan 420008, Russia
O. V. Bondar: Department of Inorganic Chemistry, Kazan Federal University, 18 Kremlyovskaya St., Kazan 420008, Russia
A. R. Gataulina: Department of Inorganic Chemistry, Kazan Federal University, 18 Kremlyovskaya St., Kazan 420008, Russia
N. A. Ulakhovich: Department of Inorganic Chemistry, Kazan Federal University, 18 Kremlyovskaya St., Kazan 420008, Russia
A. V. Gerasimov: Department of Inorganic Chemistry, Kazan Federal University, 18 Kremlyovskaya St., Kazan 420008, Russia
V. G. Evtugyn: Department of Inorganic Chemistry, Kazan Federal University, 18 Kremlyovskaya St., Kazan 420008, Russia
I. F. Gilmutdinov: Department of Inorganic Chemistry, Kazan Federal University, 18 Kremlyovskaya St., Kazan 420008, Russia
M. P. Kutyreva: Department of Inorganic Chemistry, Kazan Federal University, 18 Kremlyovskaya St., Kazan 420008, Russia

DOI: https://doi.org/10.1155/2017/7607658
Journal volume & issue: Vol. 2017

Abstract

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A series of cobalt (Co) and its oxides based nanoparticles were synthesized by using hyperbranched polyester polyol Boltorn H20 as a platform and sodium borohydride as a reducing agent. UV, FT-IR, XRD, NTA, and TEM methods were employed to obtain physicochemical characteristics of the products. The average diameter of Co nanoparticles was approximately 8.2±3.4 nm. Their magnetic properties, including hysteresis loop, field-cooled, and zero field-cooled curves were investigated. The nanoparticles exhibit superparamagnetism at room temperature, accompanied by magnetic hysteresis below the blocking temperature.

Published in Journal of Nanotechnology

ISSN: 1687-9503 (Print); 1687-9511 (Online)
Publisher: Hindawi Limited
Country of publisher: United Kingdom
LCC subjects: Technology: Technology (General)
Website: https://www.hindawi.com/journals/jnt/

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