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Z. Jumanova T. Sdykov E. Seitmuratov G. N. Dalimova 《Chemistry of Natural Compounds》2006,42(6):724-726
Lignins, p-coumaryl, guaiacyl, and syringyl structural units, which are characteristic of annual grassy and perennial bushy
plants, were found chromatographic analysis in the nitrobenzene oxidation products of natural and dioxanelignin rice husk
and straw.
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Translated from Khimiya Prirodnykh Soedinenii, No. 6, pp. 590–591, November–December, 2006. 相似文献
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G. Rakhymbay M. K. Nauryzbayev B. D. Burkitbayeva A. M. Argimbaeva R. Jumanova A. P. Kurbatov M. Eyraud P. Knauth F. Vacandio 《Russian Journal of Electrochemistry》2016,52(2):99-105
the electrochemical deposition of indium metal from InCl3 solutions was investigated. Cyclovoltammetric experiments showed that the initial hydrogen evolution reaction, observed together with the metal deposition on Pt surface, is blocked when the surface is covered by In. At large cathodic potentials, the current is diffusion-limited. The scan rate dependence of cyclovoltammograms allowed the determination of the diffusion coefficient of In3+ ions, 8.18 × 10–6 cm2/s, using the Delahay equation. The activation energy of diffusion, determined from the temperature dependence of cyclovoltammograms, is about 0.3 eV (23 kJ/mol). Chrono-amperometric experiments are consistent with the cyclovoltammetry; the In3+ diffusion coefficient determined using the Cottrell law is in good agreement with the value determined by the Randles-?ev?ik equation. Moreover the use of the nucleation models developed by Scharifker and Hills showed a progressive nucleation mode. Electron microscopy observations and X-ray diffraction patterns confirmed the formation of crystalline indium deposits. 相似文献
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Jumanova Raigul Rakhymbay Gulmira Abildina Ainaz Avchukir Khaisa Bakhytzhan Yeldana Vacandio Florence Argimbayeva Akmaral 《Journal of Solid State Electrochemistry》2023,27(1):223-233
Journal of Solid State Electrochemistry - The nanotubular structure of titanium dioxide (TiO2) is most suitable for creating high-performance energy storage and conversion devices. This paper... 相似文献
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