Synthesis and Investigations of the Morphology and Structure of Fe2O3 Nanocoatings on Porous Al2O3 Obtained by the Oxidation of Magnetron-Deposited Fe Films | Sciact - CRIS-система Института катализа

Synthesis and Investigations of the Morphology and Structure of Fe2O3 Nanocoatings on Porous Al2O3 Obtained by the Oxidation of Magnetron-Deposited Fe Films Научная публикация

Журнал

Journal of Surface Investigation: X-Ray, Synchrotron and Neutron Techniques
ISSN: 1027-4510 , E-ISSN: 1819-7094

Вых. Данные

Год: 2023, Том: 17, Номер: 3, Страницы: 673-680 Страниц : 8 DOI: 10.1134/s1027451023030333

Ключевые слова

iron oxide, porous alumina, coating, magnetron deposition, electron microscopy, atomic-force microscopy, X-ray photoelectron spectroscopy, X-ray absorption near edge structure spectroscopy

Авторы

Valeev R.G. ¹ , Beltiukov A.N. ¹ , Chukavin A.I. ¹ , Eremina M.A. ¹ , Kriventsov V.V. ²

Организации

1	Udmurt Federal Research Center, Ural Branch, Russian Academy of Sciences, Izhevsk, 426008 Russia
2	Federal Research Center, Boreskov Catalysis Institute, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia

Информация о финансировании (2)

1	Министерство науки и высшего образования Российской Федерации (с 15 мая 2018)	ГЗ-2021-2023
2	Министерство науки и высшего образования Российской Федерации (с 15 мая 2018)	075-15-2021-1351

The results of studying the morphology and crystalline, local atomic, and chemical structure of iron(III) oxide coatings on the surface of porous aluminum oxide with different morphology using methods of scanning-electron- and atomic-force microscopy, X-ray phase analysis, X-ray photoelectron spectroscopy, as well as X-ray absorption near edge structure (XANES) spectroscopy are presented. Films of porous alumina are synthesized by the two-stage anodic oxidation of aluminum in 0.3 M aqueous solutions of sulfuric and oxalic acids. To change the pore diameter, some of the films are etched in a phosphoric-acid solution. Samples of iron oxide nanocoatings are obtained by oxidation of iron films in air deposited onto porous alumina substrate matrices by magnetron sputtering at a temperature of 300°C for 3 h. It is shown that oxidation leads to a twofold increase in the coating thickness of the control sample and is associated with an increase in the density of iron oxide compared to pure iron. With a change in the nanoporous structure on the surface of the substrates, the morphological features of the coatings change: there is overgrowth of the pores with iron oxide. Controlling the processes leading to such overgrowth will make it possible to carry out a targeted change in the structure-sensitive properties of composite structures based on iron oxide.

Valeev R.G. , Beltiukov A.N. , Chukavin A.I. , Eremina M.A. , Kriventsov V.V.
Synthesis and Investigations of the Morphology and Structure of Fe2O3 Nanocoatings on Porous Al2O3 Obtained by the Oxidation of Magnetron-Deposited Fe Films
Journal of Surface Investigation: X-Ray, Synchrotron and Neutron Techniques. 2023. V.17. N3. P.673-680. DOI: 10.1134/s1027451023030333 WOS Scopus РИНЦ CAPlus OpenAlex

Валеев Р.Г. , Бельтюков А.Н. , Чукавин А.И. , Еремина М.А. , Кривенцов В.В.
Синтез и исследования морфологии и структуры нанопокрытий Fe2O3 на пористом Al2O3, полученных окислением магнетронно-осажденных пленок Fe
Поверхность. Рентгеновские, синхротронные и нейтронные исследования. 2023. №6. С.52-59. DOI: 10.31857/S102809602306016X РИНЦ OpenAlex

Поступила в редакцию:	11 окт. 2022 г.
Принята к публикации:	17 дек. 2022 г.
Опубликована в печати:	16 июн. 2023 г.
Опубликована online:	16 июн. 2023 г.

Web of science:	WOS:001009238900022
Scopus:	2-s2.0-85162003646
РИНЦ:	54088664
Chemical Abstracts:	2023:1257158
OpenAlex:	W4380884479

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