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THE EFFECT OF PRECURSORS CONCENTRATION ON THE STRUCTURE AND MICROMAGNETIC PROPERTIES OF ULTRAFINE IRON OXIDES OBTAINED BY SOL-GEL ROUTE

Nanodispersed composite materials g-Fe<sub>2</sub>O<sub>3</sub>/a-Fe<sub>2</sub>O<sub>3</sub> were obtained by thermal decomposition of iron citrate xerogel hydrate synthesized by iron nitrate and citrate acid solutions with different colloidal solutio...

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Bibliographic Details
Main Authors:	V. O. Kotsyubynsky (Author), V. V. Moklyak (Author), A. B. Hrubiak (Author), L. V. Mohnatska (Author), M. I. Gasyuk (Author)
Format:	Book
Published:	Vasyl Stefanyk Precarpathian National University, 2016-07-01T00:00:00Z.
Subjects:	article
Online Access:	Connect to this object online.
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Summary:	Nanodispersed composite materials g-Fe<sub>2</sub>O<sub>3</sub>/a-Fe<sub>2</sub>O<sub>3</sub> were obtained by thermal decomposition of iron citrate xerogel hydrate synthesized by iron nitrate and citrate acid solutions with different colloidal solutions of Fe(NO<sub>3</sub>)<sub>3</sub>×9H<sub>2</sub>O and С<sub>6</sub>Н<sub>8</sub>О<sub>7</sub> ×Н<sub>2</sub>О for different molar ratio between precursors. The influence of the precursors molar concentration and calcination temperature on the material phase composition, crystalline and magnetic microstructure, surface condition was studied. Methods of X-ray diffraction, Mössbauer spectroscopy, electron microscopy and IR - spectroscopy were used.
Item Description:	2311-0155 2413-2349 10.15330/jpnu.3.1.38-45