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Browsing by Author "Vagizov F.G."

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Defect charging and resonant levels in half-Heusler Nb<inf>1-x</inf>Ti<inf>x</inf> FeSb

Tian Y.; Vagizov F.G.; Ghassemi N.; Ren W.; Zhu H.; Wang Z.; Ren Z.; Ross J.H. (2021)

We report 93Nb and 121Sb NMR and 57Fe Mössbauer studies combined with DFT calculations of Nb1-xTixFeSb (0 ≤ x ≤ 0.3), one of the most promising thermoelectric systems for applications above 1000 K. These studies provide ...
Improving heavy oil oxidation performance by oil-dispersed CoFe<inf>2</inf>O<inf>4</inf> nanoparticles in In-situ combustion process for enhanced oil recovery

Mehrabi-Kalajahi S.; Varfolomeev M.A.; Yuan C.; Zinnatullin A.L.; Rodionov N.O.; Vagizov F.G.; Osin Y.N.; Yakimova L.S. (2021)

In this work, bimetallic oxide CoFe2O4 nanoparticles were synthesized by the hydrothermal method. CoFe2O4 nanoparticles were coated by oleic acid (CoFe2O4@oleic acid) to provide the oil-dispersed catalyst for accelerating ...
In-situ catalytic upgrading of heavy oil using oil-soluble transition metal-based catalysts

Suwaid M.A.; Varfolomeev M.A.; Al-muntaser A.A.; Yuan C.; Starshinova V.L.; Zinnatullin A.; Vagizov F.G.; Rakhmatullin I.Z.; Emelianov D.A.; Chemodanov A.E. (2020)

© 2020 Elsevier Ltd In this study, oil-soluble transition metal-based catalysts (Fe, Co, Ni) are proposed for catalyzing aquathermolysis reactions in steam injection process for heavy oil production to achieve in-situ ...
Investigation of thermal behavior of mixed-valent iron borates vonsenite and hulsite containing [OM<inf>4</inf>]<sup>n+</sup>and [OM <inf>5</inf>] <sup>n+</sup>oxocentred polyhedra by in situ high-temperature Mössbauer spectroscopy, X-ray diffraction and thermal analysis

Biryukov Y.P.; Zinnatullin A.L.; Bubnova R.S.; Vagizov F.G.; Shablinskii A.P.; Filatov S.K.; Shilovskikh V.V.; Pekov I.V. (2020)

© 2020 International Union of Crystallography. The investigation of elemental composition, crystal structure and thermal behavior of vonsenite and hulsite from the Titovskoe boron deposit in Russia is reported. The structures ...
Iron oxidation state in La<inf>0.7</inf>Sr<inf>1.3</inf>Fe<inf>0.7</inf>Ti<inf>0.3</inf>O<inf>4</inf> and La<inf>0.5</inf>Sr<inf>1.5</inf>Fe<inf>0.5</inf>Ti<inf>0.5</inf>O<inf>4</inf> layered perovskites: Magnetic properties

Gavrilova T.P.; Yagfarova A.R.; Deeva Y.A.; Yatsyk I.V.; Gilmutdinov I.F.; Cherosov M.A.; Vagizov F.G.; Chupakhina T.I.; Eremina R.M. (2021)

La0.5Sr1.5Fe0.5Ti0.5O4 and La0.7Sr1.3Fe0.7Ti0.3O4 solid solutions with the layered perovskite structure were synthesized using a solid state method. Structural properties of obtained samples were characterized using X-ray ...
Magnetic properties and electronic structure of CeFe<inf>2−x</inf>Mn<inf>x</inf> and CeFe<inf>2</inf>Mn<inf>x</inf> compounds

Naumov S.P.; Mushnikov N.V.; Terentev P.B.; Gaviko V.S.; Kleinerman N.M.; Galakhov V.R.; Kuepper K.; Vagizov F.G. (2021)

The effect of manganese alloying on the structure and magnetic properties of CeFe2 has been studied on two isostructural series: quasibinary CeFe2−xMnx and nonstoichiometric CeFe2Mnx alloys. The single-phase bcc MgCu2-type ...
Methods of Coherent Control of Spectral and Temporal Properties of Gamma Photons and Their Potential Applications

Shakhmuratov R.N.; Vagizov F.G.; Gaiduk V.Y. (2020)

© 2020, Pleiades Publishing, Inc. Abstract: Promising methods for controlling the spectral and temporal properties of gamma photons, which are important for developing quantum informatics and improving the accuracy of ...
Mössbauer Method for Studying Vibrations in a Granular Medium Excited by Ultrasound

Shakhmuratov R.N.; Vagizov F.G. (2020)

© 2020, Pleiades Publishing, Inc. Vibrations of a granular medium immersed in epoxy resin without a hardener have been studied by Mössbauer spectroscopy. The granular medium consists of small potassium ferrocyanide particles ...
Observation of Acoustically Induced Transparency for γ -Ray Photons

Radeonychev Y.V.; Khairulin I.R.; Vagizov F.G.; Scully M.; Kocharovskaya O. (2020)

© 2020 American Physical Society. © 2020 American Physical Society. We report an observation of a 148-fold suppression of resonant absorption of 14.4 keV photons from exp(-5.2) to exp(-0.2) with preservation of their ...
Oil-Dispersed α-Fe<inf>2</inf>O<inf>3</inf> Nanoparticles as a Catalyst for Improving Heavy Oil Oxidation

Mehrabi-Kalajahi S.; Varfolomeev M.A.; Yuan C.; Rodionov N.O.; Zinnatullin A.L.; Vagizov F.G.; Osin Y.N. (2021)

Oil-dispersed α-Fe2O3 nanocatalysts were prepared by coating α-Fe2O3 nanoparticles with oleic acid (OA). Mössbauer spectroscopy, X-ray diffraction, and field emission scanning electron microscopy were used to characterize ...
Oxidation of Heavy Oil Using Oil-Dispersed Transition Metal Acetylacetonate Catalysts for Enhanced Oil Recovery

Babapour Golafshani M.; Varfolomeev M.A.; Mehrabi-Kalajahi S.; Rodionov N.O.; Tahay P.; Zinnatullin A.L.; Emelianov D.A.; Vagizov F.G.; Sadikov K.G.; Osin Y.N. (2021)

In this work, several transition metal-based acetylacetonates (Ni, Cu, and Fe) were prepared as oil-dispersed catalysts for heavy oil oxidation. X-ray diffraction (XRD), scanning electron microscopy (SEM), and Mössbauer ...
Response to Comment on Oil-Dispersed α-Fe<inf>2</inf>O<inf>3</inf> Nanoparticles as a Catalyst for Improving Heavy Oil Oxidation

Mehrabi-Kalajahi S.; Varfolomeev M.A.; Yuan C.; Rodionov N.O.; Zinnatullin A.L.; Vagizov F.G.; Osin Y.N. (2021)

The main goal of our previous work was to study the effect of coating the hematite (α-Fe2O3) particles with oleic acid on their catalytic properties for improving heavy oil oxidation (https://doi.org/10.1021/acs.energyfu ...
Structural and hydrogen absorption/desorption properties of Zr<inf>2</inf>(Co<inf>0.5</inf>Fe<inf>0.2</inf>Ni<inf>0.2</inf>V<inf>0.1</inf>) intermetallic alloy

Komeili M.; Arabi H.; Yusupov R.V.; Ghorbani S.R.; Vagizov F.G.; Pourarian F. (2021)

The Zr2(Co0.5Fe0.2Ni0.2V0.1) intermetallic alloy was prepared by arc melting method and its physical properties and hydrogen storage performance were investigated. XRD analysis by Rietveld refinement and Mössbauer spectroscopy ...

Now showing items 1-13 of 13

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Browsing by Author "Vagizov F.G."

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