Výsledky vyhledávání - "Almaz L. Zinnatullin"

Akademický článek

Improving the in-situ upgrading of extra heavy oil using metal-based oil-soluble catalysts through oxidation process for enhanced oil recovery

Autor: Reza Nejad Zare, Seyedsaeed Mehrabi-Kalajahi, Mikhail A. Varfolomeev, Sarvar Talipov, Almaz L. Zinnatullin, Kamil G. Sadikov, Farit G. Vagizov

Publikováno v: Journal of Petroleum Exploration and Production Technology, Vol 14, Iss 7, Pp 2101-2112 (2024)

Abstract The demand for fuel from unconventional sources is increasing all over the world, however, there are still special and strict regulations regarding the methods of enhanced oil recovery as well as the content of the oil produced, including th

Externí odkaz: https://doaj.org/article/3c84185126ee4709841825f364889284

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Akademický článek

Microstructure and Unusual Ferromagnetism of Epitaxial SnO2 Films Heavily Implanted with Co Ions

Autor: Rustam I. Khaibullin, Amir I. Gumarov, Iskander R. Vakhitov, Andrey A. Sukhanov, Nikolay M. Lyadov, Airat G. Kiiamov, Dilyara M. Kuzina, Valery V. Bazarov, Almaz L. Zinnatullin

Publikováno v: Condensed Matter, Vol 9, Iss 2, p 27 (2024)

In this work, we have studied the microstructure and unusual ferromagnetic behavior in epitaxial tin dioxide (SnO2) films implanted with 40 keV Co+ ions to a high fluence of 1.0 × 1017 ions/cm2 at room or elevated substrate temperatures. The aim was

Externí odkaz: https://doaj.org/article/1a4e47043f0243c9a156a7ddc1b6142b

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Akademický článek

Unusual Compositions of Fe-Nb Alloy Precipitates in Iron-Implanted LiNbO3

Autor: Almaz L. Zinnatullin, Andrei V. Petrov, Roman V. Yusupov, Valerii F. Valeev, Rustam I. Khaibullin, Farit G. Vagizov

Publikováno v: Magnetochemistry, Vol 9, Iss 5, p 121 (2023)

The results of a study of heavy implantation of a LiNbO3 crystal with iron ions are reported for the first time. The X-cut LiNbO3 substrate was implanted with 40-keV Fe+ ions to the fluence of 1.5·1017 ions/cm2. The sample reveals pronounced ferroma

Externí odkaz: https://doaj.org/article/cdab543d27ea4ee2a78e0d289c880632

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Akademický článek

An Effect of Fe3+ Ion Substitution for Cr3+ in the Octahedral Sites of FeCr2O4 Multiferroic Spinel: Mössbauer Spectroscopy Study

Autor: Almaz L. Zinnatullin, Mikhail A. Cherosov, Ruslan G. Batulin, Farit G. Vagizov, Roman V. Yusupov

Publikováno v: Magnetochemistry, Vol 9, Iss 4, p 98 (2023)

We present the results of a successful synthesis and investigation of polycrystalline Fe2+(Cr3+, Fe3+)2O4 powder, where 1/8 part of the Cr3+ ions in the octahedral sites is substituted by the Fe3+ ones. It is shown that under such doping, the materia

Externí odkaz: https://doaj.org/article/d91051e2f02a406a84072f9a077010db

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Akademický článek

Use of Nickel Oxide Catalysts (Bunsenites) for In-Situ Hydrothermal Upgrading Process of Heavy Oil

Autor: Jiménez Padilla Pedro Alonso, Richard Djimasbe, Rustem Zairov, Chengdong Yuan, Ameen A. Al-Muntaser, Alexey Stepanov, Guliya Nizameeva, Alexey Dovzhenko, Muneer A. Suwaid, Mikhail A. Varfolomeev, Almaz L. Zinnatullin

Publikováno v: Nanomaterials, Vol 13, Iss 8, p 1351 (2023)

In this study, Nickel oxide-based catalysts (NixOx) were synthesized and used for the in-situ upgrading process of heavy crude oil (viscosity 2157 mPa·s, and API gravity of 14.1° at 25 °C) in aquathermolysis conditions for viscosity reduction and

Externí odkaz: https://doaj.org/article/b8ed80a1cda84505b3af4700c58f6cb3

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Akademický článek

Endotaxial α-Fe Nanoparticles in the High-Fluence Iron-Implanted Single-Crystal MgO

Autor: Almaz L. Zinnatullin, Bulat F. Gabbasov, Nikolay M. Lyadov, Roman V. Yusupov, Rustam I. Khaibullin, Farit G. Vagizov

Publikováno v: Crystals, Vol 12, Iss 8, p 1095 (2022)

In this work, we report on the endotaxial growth of α-Fe nanoparticles in the near-surface layer under high-fluence iron ion implantation of the single-crystal magnesium oxide substrate. Comprehensive Mössbauer effect and magnetometry studies show

Externí odkaz: https://doaj.org/article/f58699d56a5c435ea6bbeac6b7d78d53

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