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1.
V. V. Tatarchuk I. A. Druzhinina V. I. Zaikovskii E. A. Maksimovskii S. A. Gromilov P. N. Gevko N. I. Petrova 《Russian Journal of Inorganic Chemistry》2017,62(3):372-379
Gold nanoparticles (NPs) with the average core diameter d Au = 6.8 ± 1.6 nm have been synthesized in reverse micelles of the oxyethylated surfactant Brij 30. It has been shown that thin NP films can be produced directly from a micellar solution with the use of glass substrates functionalized with aminosilane. Synthesis of NPs and film formation have been studied by UV-Vis spectroscopy, photon correlation spectroscopy, X-ray diffraction, TEM, SEM, and AFM. 相似文献
2.
Isoperimetric inequalities are applied to a moving-boundaryproblem for doubly-connected domains. This problem occurs forexample in electrochemistry, in which case the domains in questionare the electrolyte of an electrolytic cell. The two electrodessurrounding the electrolyte are assumed to grow or dissolve,at different rates in general, by electrochemical reaction.We obtain optimal estimates showing, for example, that the leastchange in volume of each electrode always occurs in sphericalsymmetry. 相似文献
3.
V. V. Tatarchuk I. A. Druzhinina T. M. Korda 《Russian Journal of Inorganic Chemistry》2009,54(8):1332-1338
We studied nonequilibrium distribution of inert rhodium(III) in extraction by dihexyl sulfide (DHS)and alkylanilinium nitrate
mixtures from joint nitrate solutions of triaquatrinitrorhodium (0.1–4 g/L Rh) and palladium (0–2 g/L Pd). We discovered the
effect of increasing rhodium recovery in the presence of palladium. This effect has a kinetic nature and arises from the fact
that bis(alkyl sulfide) palladium(II) species catalyze the reaction between dihexyl sulfide and a rhodium intermediate based
on alkylanilinium nitrate micelles. Depending on initial rhodium and palladium concentrations, the extraction system provides
effective distribution factors for rhodium in the range D
Rh* = 8−300 and rhodium recoveries of 43–97% with ∼100% palladium recovery; single 5-min phase contact at 35°C ensures the 10-fold
concentration of both metals in the extract. Our results are useful for developing processes for recovering fission rhodium
from spent nuclear fuel.
Original Russian Text ? V.V. Tatarchuk, I.A. Druzhinina, T.M. Korda, 2009, published in Zhurnal Neorganicheskoi Khimii, 2009,
Vol. 54, No. 8, pp. 1401–1407. 相似文献
4.
V. V. Tatarchuk A. P. Sergievskaya N. V. Kuratieva I. V. Korol’kov L. A. Sheludyakova S. A. Gromilov 《Journal of Structural Chemistry》2014,55(1):142-146
The crystals of the [Pd3(μ-OH)(μ-CH3COO)5] complex are obtained and characterized using powder and single crystal X-ray diffraction and IR spectroscopy. The crystal structure (a = 15.6942(6) Å, b = 11.7190(3) Å, c = 9.7871(3) Å, V = 1800.05(10) Å3, space group Pna21, Z = 4) is formed from neutral trinuclear cyclic molecules of [Pd3(μ-OH)(μ-CH3COO)5], in which the OH? group, together with five CH3COO? anions, is a bridge ligand. 相似文献
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Alexander Samokhvalov Eduardus C. Duin Sachin Nair Bruce J. Tatarchuk 《Surface and interface analysis : SIA》2010,42(9):1476-1482
The Ag/titania sorbent for the ultradeep desulfurization of liquid fuels was characterized by electron spin resonance and was found to contain nearly the stoichiometric titania, without significant concentration of Ti3+ or the reactive oxygen species. The surface chemical reactions of thiophene adsorbed on the Ag/titania were studied by temperature‐programmed XPS from 25 to 525 °C upon in situ thermal annealing in high vacuum and in situ oxidation by oxygen gas. The titania support is not chemically reactive under those conditions. Silver oxide in the Ag/titania sorbent is converted to Ag2 S without formation of the transient surface sulfates or sulfites and is further oxidized by molecular oxygen. Copyright © 2010 John Wiley & Sons, Ltd. 相似文献
10.
Alexander Samokhvalov Evert C. DuinSachin Nair Bruce J. Tatarchuk 《Applied Surface Science》2011,257(8):3226-3232
Adsorption, desorption and structure of the surface chemical compounds formed upon interaction of dibenzothiophene (DBT) in solution of n-octane with the sulfur-selective Ag/Titania sorbent for the ultradeep desulfurization of liquid fuels was characterized by the temperature-programmed X-ray photoemission spectroscopy (XPS) and Electron Spin Resonance. Adsorption of DBT proceeds via chemisorption via the oxygen-containing surface groups. Desorption of DBT and thermal regeneration of the “spent” Ag/Titania were studied by the complementary temperature-programmed XPS and ESR from 25 °C to 525 °C, in the high vacuum vs. air. The XPS spectrum of the pure DBT is reported for the first time. 相似文献