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Russian Journal of Electrochemistry - The methods of 1H NMR and pulsed field gradient NMR are used to study the protic solid electrolyte of calix[4]arene-para-sulfonic acid in the temperature range... 相似文献
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Lyubov Shmygleva Evgeny Sanginov Nikita Slesarenko Aleksander Chernyak Aleksander Karelin Yury Dobrovolsky 《Ionics》2017,23(7):1793-1800
The features of proton transport and proton hydration shell structure of calix[6]arene sulfonic acid were studied. XRD and NMR data indicate the existence of crystalline and amorphous phases and various conformations in the acid structure. The hydration process occurs in three stages by thermal analysis and IR spectroscopy. The change in the composition of the hydrate affected the conductivity only at low humidity; an inverse relationship between the water uptake and the activation energy of conductivity is observed in the entire investigated range of humidity. 相似文献
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G. R. Baymuratova A. A. Slesarenko A. V. Yudina O. V. Yarmolenko 《Russian Chemical Bulletin》2018,67(9):1648-1654
Nanocomposite polymer electrolytes based on polyethylene glycol diacrylate and 1 M LiBF4 solution in γ-butyrolactone with addition of SiO2 nanoparticles were synthesized and studied. Resistance measurement at the Li/electrolyte and Li/nanocomposite electrolyte interface by the time-resolved electrochemical impedance showed its significant decrease in the presence of SiO2 nanoparticles. Charge-discharge cycling of prototypes of Li/LiFePO4 batteries for 50 cycles also showed the advantage of using nanocomposite polymer electrolytes over electrolytes without SiO2 additives. 相似文献
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Yarmolenko O. V. Romanyuk O. E. Slesarenko A. A. Baymuratova G. R. Shuvalova N. I. Mumyatov A. V. Troshin P. A. Shestakov A. F. 《Russian Journal of Electrochemistry》2019,55(4):254-264
Russian Journal of Electrochemistry - —The effect of various types of electrolyte on the behavior of lithium-polyimide batteries was studied. The electrolyte systems used included the liquid... 相似文献
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We consider the propagation of elastic waves in soft composite materials undergoing large deformations. The analysis is performed in terms of small amplitude motions superimposed on a deformed state. By consideration of 2D periodic laminates and 3D fiber composites, we find that an applied deformation influences the elastic waves through the change in the microstructure, and through the change in the local material properties. These effects can be significantly amplified by the deformation induced elastic instability phenomenon leading to microstructure transformations. (© 2016 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim) 相似文献
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Baymuratova G. R. Chernyak A. V. Slesarenko A. A. Tulibaeva G. Z. Volkov V. I. Yarmolenko O. V. 《Russian Journal of Electrochemistry》2019,55(6):529-536
Russian Journal of Electrochemistry - The spesific features of ion transport are studied in the nanocomposite system based on a network matrix synthesized by radical polymerization of polyethylene... 相似文献
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In this paper, a problem of equilibrium of two elastic bodies pasted together along a curve is considered. It is assumed that there is a through crack on a part of the curve. Nonlinear boundary conditions providing mutual non-penetration between the crack faces are set. The main objective of the paper is to construct and test a numerical algorithm for solving the equilibrium problem. The algorithm is based on two approaches: a domain decomposition method and Uzawa method for solving variational inequalities. A numerical experiment illustrates the efficiency of the algorithm. 相似文献
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Chernyak A. V. Berezin M. P. Slesarenko N. A. Zabrodin V. A. Volkov V. I. Yudina A. V. Shuvalova N. I. Yarmolenko O. V. 《Russian Chemical Bulletin》2016,65(8):2053-2058
Russian Chemical Bulletin - Peculiarities of the formation of a reticular polymeric gel—electrolyte matrix based on polyethylene glycol diacrylate in a medium of ionic liquid... 相似文献
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N. A. Kazarinov E. M. Rudoy V. Yu. Slesarenko V. V. Shcherbakov 《Computational Mathematics and Mathematical Physics》2018,58(5):761-774
A boundary value problem describing the equilibrium of a two-dimensional linear elastic body with a thin rectilinear elastic inclusion and possible delamination is considered. The stress and strain state of the inclusion is described using the equations of the Euler–Bernoulli beam theory. Delamination means the existence of a crack between the inclusion and the elastic matrix. Nonlinear boundary conditions preventing crack face interpenetration are imposed on the crack faces. As a result, problem with an unknown contact domain is obtained. The problem is solved numerically by applying an iterative algorithm based on the domain decomposition method and an Uzawa-type algorithm for solving variational inequalities. Numerical results illustrating the efficiency of the proposed algorithm are presented. 相似文献
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