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11.
V. S. Rudnev T. P. Yarovaya D. L. Boguta E. S. Panin P. S. Gordienko 《Russian Journal of Electrochemistry》2000,36(12):1291-1295
The manner in which the molar ratio n = [sodium polyphosphate]/[Me cation] in aqueous electrolytes is related to the thickness h and the element content (EC) of anodic layers formed on aluminum and its alloys during electric microbreakdowns (sparks, microarcs) is established. The polyphosphate structure, the electrolyte pH, and the nature and charge of Me cation do not affect dependences of EC and h on n in the case of Mn(II), Pb(II), Mg(II), Zn(II), Ni(II), Y(III), and Eu(III). The film growth mechanism changes with n. The incorporation of P, Me(II), or Me(III) is due to thermolysis of precipitate from electrolyte containing hydrated polyphosphates of Me(II) or Me(III), the thermolysis occurring at the anode under the action of electric breakdowns. 相似文献
12.
P. M. Nedozorov K. N. Kilin T. P. Yarovaya T. A. Kaidalova E. S. Panin D. L. Boguta V. S. Rudnev P. S. Gordienko 《Journal of Applied Spectroscopy》2001,68(4):670-674
Anodic oxide coatings (AOC) formed at the potentials of spark breakdowns in aqueous solutions of potassium hexafluorozirconate (K2ZrF6) contain up to 36 wt.% of Zr. The modification of ZrO2 in AOC is tetragonal. The reflection coefficients of AOC have been measured in the range 430–670 nm. After UV irradiation for a few hours the reflection coefficient decreases by several percent. The treatment of AOC in a solution containing F– and [Fe(CN)]3– ions leads to a change in the aluminum and zirconium concentrations in the surface layer and to an increase of the AOC reflectivity. 相似文献
13.
O. V. Salomatina O. I. Yarovaya D. V. Korchagina Yu. V. Gatilov M. P. Polovinka V. A. Barkhash 《Russian Journal of Organic Chemistry》2006,42(9):1313-1320
Transformations of diepoxy derivatives of limonene under conditions of homogeneous acid catalysis were studied, and their results were compared with those obtained over heterogeneous catalysts. A number of previously unknown compounds were isolated. The most possible transformation pathways were analyzed by computer simulation using molecular-mechanics and quantum-chemical methods. 相似文献
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16.
Sokolova A. S. Baranova D. V. Yarovaya O. I. Baev D. S. Polezhaeva O. A. Zybkina A. V. Shcherbakov D. N. Tolstikova T. G. Salakhutdinov N. F. 《Russian Chemical Bulletin》2019,68(5):1041-1046
Russian Chemical Bulletin - N-Heterocycle-containing (1S)-(+)-camphor-10-sulfonamide derivatives were synthesized. Their antiviral activity against the Ebola and Marburg viruses was estimated using... 相似文献
17.
L. M. Tyrina V. S. Rudnev T. P. Yarovaya A. Yu. Ustinov I. V. Lukiyanchuk V. V. Permyakov 《Russian Journal of Applied Chemistry》2010,83(4):680-686
Pt + TiO2/Ti(Al) and Pt + CeO2 + ZrO2 + TiO2/Ti composites were formed by plasma electrolytic oxidation and their surface composition and catalytic activity in CO oxidation
to CO2 were studied. 相似文献
18.
Rudnev V. S. Vasil'eva M. S. Tyrina L. M. Yarovaya T. P. Kuryavyi V. G. Kondrikov N. B. Gordienko P. S. 《Russian Journal of Applied Chemistry》2003,76(7):1059-1066
Data on formation of anodic layers containing MnTiO3, -Mn2TiO4, Mn2O3, Mn3O4, and Mn3(BO3)2 on titanium from aqueous electrolytes at sparking voltages are presented. 相似文献
19.
G. Ya. Menzheres N. V. Yarovaya A. A. Degtyareva V. V. Magdinets 《Theoretical and Experimental Chemistry》1995,30(4):191-194
Conversions of an epoxy-containing system, photoinduced by means of a charge transfer complex of maleic anhydride with tetrahydrofuran, have been studied spectrophotometrically. Opening of the epoxy and anhydride rings is accompanied by incorporation of the fragments into the polymer chain in the form of ester groupings. Specific features of these transformations are dependent on the nature of the rings, the content of donor-acceptor complex in the system, and the addition of polyols.Translated from Teoreticheskaya i Éksperimental'naya Khimiya, Vol. 30, No. 4, pp. 227–230, July–August, 1994. 相似文献
20.
O. V. Salomatina O. I. Yarovaya D. V. Korchagina Yu. V. Gatilov M. P. Polovinka V. A. Barkhash 《Russian Journal of Organic Chemistry》2005,41(9):1280-1285
Transformations of isocaryophyllene diepoxide (an isomer of widely spread natural sesquiterpene) were studied in various acidic media under conditions of homogeneous and heterogeneous catalysis. A number of previously unknown compounds were thus obtained. The experimental data were compared with the results of molecular-mechanics and quantum-chemical simulation of the most probable transformation paths. 相似文献