Adsorption deformation of a microporous AR-V carbon adsorbent during the adsorption of n-hexanePleiades Publishing Ltd - Tập 85 - Trang 1960-1964 - 2011
V. V. Nabiulin, A. A. Fomkin, A. V. Tvardovskiy
Adsorption isotherms of n-hexane and adsorption deformation isotherms of an AR-V carbon adsorbent are measured in a pressure range of 1 Pa to 20 kPa at temperatures of 254.8–353 K. It is found that, except for the initial pressure range (p < 800 Pa), the relative linear deformation increases with increasing pressure and decreases with increasing temperature. At temperatures of 254.8, 273.2, and 29...... hiện toàn bộ
Nonlinear optical properties of solutions of heavy fullerenes in the near-ultraviolet regionPleiades Publishing Ltd - Tập 85 - Trang 1603-1608 - 2011
V. V. Sherstnev, N. A. Charykov, K. N. Semenov, N. I. Alekseev, V. A. Keskinov, O. A. Krokhina
Nonlinear optical properties (particularly optical limiting) are determined for solutions of heavy fullerenes C76 + C78 + C84 + C90 + …, in the near-ultraviolet region (λ ≈ 280 ± 7 nm). It is shown that no optical limiting is observed in solutions of light fullerenes (C60 and C70), but found in solutions of water-soluble fullerenol-d (a mixture of oxypolyalcohols of fullerene C60-C60(OH)
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Optical Properties of NiCl2-Filled Polyvinyl AlcoholPleiades Publishing Ltd - Tập 96 - Trang 2712-2717 - 2022
S. M. Elghnam, Abdel-Hamid A. Sakr, Youssef H. Abdelalim, A. H. El-Sayed, Mahmoud A. Hamad
NiCl2-filled polyvinyl alcohol (PVA) films filled prepared by casting process. X-ray diffraction (XRD) revealed that crystalline nature of PVA was reduced with NiCl2 content. The transmittance spectra of NiCl2 filled PVA films were reduced with NiCl2 content, confirming the increase of amorphous phase noticed by XRD for high NiCl2 content samples. In addition, the indirect band gap for PVA film is...... hiện toàn bộ
Temperature dependence of electric conductivity of molten binary mixtures of alkali and rare-earth metals chloridesPleiades Publishing Ltd - Tập 80 - Trang 449-452 - 2006
A. V. Kovalevskii, V. I. Shishalov
The temperature dependences of the specific and molar electric conductances of CeCl3-MCl and LnCl3-KCl (M=Li, Na, K, and Cs; Ln=Er and Yb) molten binary mixtures of various compositions were studied. The size of the cations of alkali and rare-earth metals was demonstrated to affect the intensity of the interactions of the components of the systems. Deviations of the molar conductance isotherms fro...... hiện toàn bộ
Sorption of catechins under conditions of reverse-phase high-efficiency liquid chromatographyPleiades Publishing Ltd - Tập 84 - Trang 1421-1427 - 2010
R. V. Shafigulin, K. V. Egorova, A. V. Bulanova
The physico-chemical principles of catechin sorption from various polar solvents onto silica gel modified with octadecyl groups were studied. Thermodynamic characteristics of the sorption were calculated, and the applicability of different models of retention was demonstrated for catechins under the conditions of reverse-phase high-efficiency liquid chromatography.
Porous glass-carbon nanomaterials for electrochemical devicesPleiades Publishing Ltd - Tập 91 - Trang 1805-1810 - 2017
D. A. Zherebtsov, E. V. Sharlay, R. F. Yantsen, D. M. Galimov, S. B. Sapozhnikov, M. Ponty, M. E. Kompan
Properties of the surfaces, morphologies, and voltammetric characteristics of glass-carbon materials with developed porosity are investigated. The sizes of micro-, meso-, and macropores are determined, along with specific surface areas. The voltammetric curves of samples in sulfuric acid solution are analyzed.