Cation Distribution in the Composite Materials of the CaFe2O4-α-Fe2O3 Series
- 作者: Knyazev Y.V.1, Shishkina N.N.2, Bayukov O.A.1, Kirik N.P.2, Solovyov L.A.2, Zhizhaev A.M.2, Rabchevsky E.V.2, Anshits A.G.2
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隶属关系:
- Kirensky Institute of Physics, Federal Krasnoyarsk Research Center, Siberian Branch
- Institute of Chemistry and Chemical Technology, Federal Krasnoyarsk Research Center, Siberian Branch
- 期: 卷 60, 编号 5 (2019)
- 页面: 763-771
- 栏目: Article
- URL: https://journals.rcsi.science/0022-4766/article/view/162112
- DOI: https://doi.org/10.1134/S0022476619050081
- ID: 162112
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详细
Structured composite materials CaFe2O4-α-Fe2O3 (α-Fe2O3 content is 2–82 wt.%) are obtained with the method of solid-phase synthesis at 1000 °C. The phase composition of the samples is studied using powder X-ray diffraction. It is shown that the content of CaFe2O4 and α-Fe2O3 phases changes linearly, depending on the composition of the starting material. The scanning electron microscopy data indicate the formation of a two-phase system α-Fe2O3-CaFe2O4. The Mössbauer spectroscopy data at room temperature testify the formation of cationic iron vacancies in the CaFe2O4 crystal structure in the absence of α-Fe2O3 structural defects. Cationic vacancies can be formed during the synthesis in the atmosphere of air.
作者简介
Yu. Knyazev
Kirensky Institute of Physics, Federal Krasnoyarsk Research Center, Siberian Branch
编辑信件的主要联系方式.
Email: yuk@iph.krasn.ru
俄罗斯联邦, Krasnoyarsk
N. Shishkina
Institute of Chemistry and Chemical Technology, Federal Krasnoyarsk Research Center, Siberian Branch
Email: yuk@iph.krasn.ru
俄罗斯联邦, Krasnoyarsk
O. Bayukov
Kirensky Institute of Physics, Federal Krasnoyarsk Research Center, Siberian Branch
Email: yuk@iph.krasn.ru
俄罗斯联邦, Krasnoyarsk
N. Kirik
Institute of Chemistry and Chemical Technology, Federal Krasnoyarsk Research Center, Siberian Branch
Email: yuk@iph.krasn.ru
俄罗斯联邦, Krasnoyarsk
L. Solovyov
Institute of Chemistry and Chemical Technology, Federal Krasnoyarsk Research Center, Siberian Branch
Email: yuk@iph.krasn.ru
俄罗斯联邦, Krasnoyarsk
A. Zhizhaev
Institute of Chemistry and Chemical Technology, Federal Krasnoyarsk Research Center, Siberian Branch
Email: yuk@iph.krasn.ru
俄罗斯联邦, Krasnoyarsk
E. Rabchevsky
Institute of Chemistry and Chemical Technology, Federal Krasnoyarsk Research Center, Siberian Branch
Email: yuk@iph.krasn.ru
俄罗斯联邦, Krasnoyarsk
A. Anshits
Institute of Chemistry and Chemical Technology, Federal Krasnoyarsk Research Center, Siberian Branch
Email: yuk@iph.krasn.ru
俄罗斯联邦, Krasnoyarsk
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