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    Cation Distribution in the Composite Materials of the CaFe2O4-α-Fe2O3 Series
/ Y. V. Knyazev [et al.] // J. Struct. Chem. - 2019. - Vol. 60, Is. 5. - P. 763-771, DOI 10.1134/S0022476619050081. - Cited References: 25. - The study was performed with the financial support of the Russian Foundation for Basic Research, the Government of the Krasnoyarsk Krai, the Krasnoyarsk Regional Science Foundation within the project No. 18-42-243011 "The effect of the composition and the defective structure of CaFe2O4 based "core-shell" composite materials on their electronic and catalytic properties" and the UMNIK program. . - ISSN 0022-4766. - ISSN 1573-8779
РУБ Chemistry, Inorganic & Nuclear + Chemistry, Physical

Аннотация: 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.

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Держатели документа:
Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Fed Krasnoyarsk Res Ctr, Krasnoyarsk, Russia.
Russian Acad Sci, Inst Chem & Chem Technol, Siberian Branch, Fed Krasnoyarsk Res Ctr, Krasnoyarsk, Russia.

Доп.точки доступа:
Knyazev, Yu. V.; Князев, Юрий Владимирович; Shishkina, N. N.; Bayukov, O. A.; Баюков, Олег Артемьевич; Kirik, N. P.; Solovyov, L. A.; Zhizhaev, A. M.; Rabchevsky, E. V.; Anshits, A. G.; Russian Foundation for Basic Research; Government of the Krasnoyarsk Krai; Krasnoyarsk Regional Science Foundation [18-42-243011]; UMNIK program
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