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1.
A. I. Kryukov S. Ya. Kuchmii A. V. Korzhak N. F. Guba S. V. Kulik 《Theoretical and Experimental Chemistry》1994,29(3):182-184
We have obtained new semiconductor materials with microheterojunctions by substitution of surface cadmium ions in CdS by Cu(I), Cu(II), and Bi(III) ions. We have shown that the photocatalytic activity of their dispersions in the reaction of evolution of H2 from alcohol-water mixtures is considerably higher than in the original cadmium sulfide.Translated from Teoreticheskaya i Éksperimental'naya Khimiya, Vol. 29, No. 3, pp. 270–274, May–June, 1993.We would like to acknowledge Academician V. D. Pokhodenko of the Academy of Sciences of Ukraine for drawing our attention to the prospects for investigation of complex photocatalytic systems based on semiconductors with different types of conductivity. 相似文献
2.
The electrochemical production and doping of soluble, as well as the physicochemical properties of a soluble electrically conducting polymer based on 3-methyl-4-phenylthiophene were studied.Translated from Teoreticheskaya i Éxperimental'naya Khimiya, Vol. 29, No. 2, pp. 143–148, March–April, 1993.The authors would like to express gratitude to the State Committee of the Ukraine on questions of science and technology for financial support for this work within the framework of the State Scientific and Technical Program 7.1. Materials for Electronic Technology, as well as to V. P. Kandilenko and V. Ya. Chernov for aid in recording the fluorescence spectra of the P3M4PT films. 相似文献
3.
S. Ya. Kuchmii A. V. Korzhak N. F. Guba S. V. Kulik A. I. Kryukov 《Theoretical and Experimental Chemistry》1996,31(6):309-313
The possibility of photocatalysis of hydrogen production from aqueous alcohol mixtures by heterostructures of cadmium sulfide with dyes under the action of light with >600 nm was shown. A probable mechanism of the sensitization is proposed on the basis of an examination of the spectral, photochemical, and electrochemical data obtained.Translated from Teoreticheskaya i Éksperimental'naya Khimiya, Vol. 31, No. 6, pp. 370–374, November–December, 1995.The authors are grateful to S. V. Shinkorenko for providing the dyes that they synthesized for the first time. 相似文献
4.
N. F. Guba S. Ya. Kuchmii A. V. Korzhak A. I. Kryukov V. D. Pokhodenko 《Theoretical and Experimental Chemistry》1999,35(2):75-78
Nanostructural composites can be used as suspension electrodes; they are made by substitution cadmium(II) at the surfaces
of CdS microcrystals for Cu(I, II), Fe(III), Bi(III), and Sb(III). Features are considered in the photoelectrochemical action
mechanism of the various nanocomposites.
L. V. Pisarzhevskii Institute of Physical Chemistry, National Academy of Sciences of Ukraine, 31 Prospekt Nauki, Kiev 252039,
Ukraine. Translated from Teoreticheskaya i éksperimental'naya Khimiya, Vol. 35, No. 2, pp. 79–82, March–April, 1999. 相似文献
5.
V.S. Guba 《Inventiones Mathematicae》2006,163(2):313-342
We prove that the Dehn function (that is, the smallest isoperimetric function) of the R. Thompson’s group F is quadratic. 相似文献
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The authors have established, through their investigations with the electron microscope, that an addition of ammonium chloride at the time of the precipitation of BaSO4 according to L. W. WINKLER, exerts an influence on the morphology of the precipitate (the latter then filtering easily). 相似文献
9.
The authors have tried to establish the nucrostructure of ammonium chloride by means of the electron microscope.The results confirm the accuracy of the KAST-SMEKAL representation. 相似文献
10.
Witold Mielcarek Dorota Nowak-woźny Krystyna Prociów Adam Gubański 《辐射效应与固体损伤》2013,168(6-12):1051-1055
ZnO varistor degradation phenomena was studied using thermally stimulated current (TSC) method. It is believed that asymmetrical degradation of V-I characteristics caused by DC biasing is due to charge accumulation on the reverse biased side of ZnO grain barrier. The TSCs' measuring system and cryostat apparatus used in experiment were described. The thermally stimulated currents observed in this study for varistor samples doped with different amounts of Co, due to their recovery from asymmetrical electric stress, could not be controlled by movement of Zn interstitials with activation energy 0.55 v eV, as it is widely believed, for the TSC activation energy determined in this experiment was 0.39 v eV. 相似文献