Výsledky vyhledávání - "V I, Marchenko"

Reduction of Np(V) with Tetravalent Uranium in HNO3 Solutions Containing Hydrazine and Technetium Ions

Autor: V. I. Marchenko, O. A. Savilova, K. N. Dvoeglazov

Publikováno v: Radiochemistry. 63:283-289

The valence behavior of neptunium in the reaction of Np(V) with U(IV) in HNO3 solutions containing hydrazine and Tc(VII) ions has been studied. It was found that Np(V) is reduced to Np(IV) in two successive stages differing in the rates, after which

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7455d5233e3f86129b17954f1e288ae6
https://doi.org/10.1134/s106636222103005x

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Analysis of the Possibility of Using Carbamide for Separation of U and Pu in Extractive Processing of SNF

Autor: V. I. Marchenko, K. N. Dvoeglazov

Publikováno v: Radiochemistry. 62:308-316

Behavior of carbamide in HNO3 solutions on Pt and SnO2 electrodes was studied. It was found that the oxidation rate of Co(NH2)2 on the SnO2 electrode is approximately two orders of magnitude lower than that on the Pt electrode. The electrochemical re

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c351f864e7a5ccc7c2240e6389e31a4b
https://doi.org/10.1134/s1066362220030030

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Dynamics of multiferroic LiCuVO4 influenced by electric field

Autor: S. K. Gotovko, V. I. Marchenko, A. Prokofiev, L. E. Svistov

Publikováno v: Physical Review B. 104

We present the electron spin resonance study of the influence of an electric field on the low-field multiferroic magnetic state in LiCuVO4. The shift of the magnetic resonance spectra in the electric field has been observed experimentally. Symmetry a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cbf8c694dccc94a9ae858740e6ff3af1
https://doi.org/10.1103/physrevb.104.214415

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Specific Features of Electrochemical Oxidation of Pu(III) in a Diaphragmless Cell in Hydrazine-Containing Nitric Acid Solutions

Autor: V. I. Marchenko, K. N. Dvoeglazov

Publikováno v: Radiochemistry. 61:443-446

Oxidation of Pu(III) in a diaphragmless cell with a Ti cathode and a Pt anode in 1.0–3.9 M HNO3 solutions containing 4.5 × 10−2–1.8 × 10−1 M hydrazine was studied. The final solutions contain, along with Pu(IV), also a small amount of Pu(VI

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::01ae189e2a41dc8334e0eef10ca0af00
https://doi.org/10.1134/s1066362219040076

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Anomalous Spin-Flop in Antiferromagnetic Cu(pz)2(ClO4)2

Autor: V. I. Marchenko

Publikováno v: Journal of Experimental and Theoretical Physics. 132:586-587

An explanation is proposed for the anomalous spin-flop in antiferromagnetic Cu(pz)2(ClO4)2. Due to the closeness of the monoclinic and tetrahedral lattices, the spin-flop in a small magnetic field can be accompanied by a transition from one to anothe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ed217b96a3517fa3c1629a593b86c453
https://doi.org/10.1134/s1063776121040166

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Organic reductants of Pu and Np ions in wet technology for spent nuclear fuel reprocessing

Autor: V. I. Marchenko, V. N. Alekseenko, K. N. Dvoeglazov

Publikováno v: Radiochemistry. 57:366-377

Scientific, technical, and patent information on the use of organic compounds as reductants of Pu and Np ions in wet technology for spent nuclear fuel reprocessing is summarized and correlated. Organic derivatives of hydrazine and hydroxylamine, and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::44ae1db9ceeedf91e58e6230c0661939
https://doi.org/10.1134/s1066362215040050

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Reduction of Pu(IV) by carbohydrazide in aqueous solutions and in two-phase systems with tributyl phosphate

Autor: L. N. Podrezova, S. N. Alekseenko, K. N. Dvoeglazov, V. I. Marchenko, V. I. Volk, V. N. Alekseenko

Publikováno v: Journal of Radioanalytical and Nuclear Chemistry. 304:201-206

The possibility of using carbohydrazide as a reducing agent for plutonium in Purex process was examined. Kinetics of the reaction between Pu(IV) and carbohydrazide in HNO3 aqueous solution was studied spectrophotometrically, the rate law was establis

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::35520aa5947ca9671c4f765a59120966
https://doi.org/10.1007/s10967-014-3882-7

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On antiferromagnetic transition in CuCrO2

Autor: V. I. Marchenko

Publikováno v: Journal of Experimental and Theoretical Physics. 119:1084-1087

It has been established that peculiar properties of the antiferromagnetic state of CuCrO2 can be explained naturally using the Dzyaloshinskii-Landau theory of magnetic phase transitions.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d3cf4b48105f7b6148a4a0031bacb9d6
https://doi.org/10.1134/s1063776114120073

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Substitutions of praseodymium and silicon for calcium and phosphorus in hydroxyapatite structure

Autor: N. V. Starostenko, L. V. Pasechnik, E. I. Get’man, V. I. Marchenko, S. N. Loboda

Publikováno v: Russian Journal of Inorganic Chemistry. 57:1192-1195

Substituted hydroxyapatite samples of composition Ca10−x Pr x (PO4)6−x (SiO4) x (OH)2, where x = 0−6, were studied using X-ray diffraction and IR spectroscopy. Calcium substitutions occurred over the entire range of compositions studied. The cr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::536390538649c5a84e4e3d80696aa908
https://doi.org/10.1134/s0036023612090197

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