Hydrothermal Synthesis of Nanodispersed -Fe₂O₃
with a Lamellar Shape of Crystals

V. Sh. Mirasov^a, D. A. Zherebtsov^a, D. G. Kleshchev^a,
Yu. I. Ryabkov^b, V. A. German^c, and I. V. Krivtsov^a

^a South Ural State University (National Research University), pr. Lenina 76, Chelyabinsk, 454080 Russia

^b Institute of Chemistry, Komi Research Center, Ural Branch, Russian Academy of Sciences,
ul. Pervomaiskaya 48, Syktyvkar, 167982 Russia

^c OOO Research Institute of Pigment Materials, Kaslinskaya ul. 3, Chelyabinsk, 454084 Russia

e-mail: mirasov@gmail.com

Received July 22, 2013

Abstract—Transformations of oxyhydroxides of iron(III), which are formed in the process of oxidation of
iron(II) in Fe(OH)₂ suspensions upon the hydrothermal treatment at 150–220C in water and in aqueous solu-
tions of potassium hydroxide with concentrations of 1–5 mol/L have been studied. The dependences of the
phase composition and dispersity of the arising products and the morphology of -Fe₂O₃ on the parameters of
heat treatment and on the phase composition of FeOOH have been determined. Conditions for obtaining nano-
disperse -Fe₂O₃ with a lamellar shape of crystals have been refined.

DOI: 10.1134/S003602361406014X

Pleiades Publishing home page | journal home page | top

If you have any problems with this server, contact webmaster.