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O. N. Fedyaeva A. A. Vostrikov V. R. Antipenko A. V. Shishkin V. I. Kolobov M. Ya. Sokol 《Russian Journal of Physical Chemistry B, Focus on Physics》2017,11(7):1117-1128
The effect of supercritical water and pyrite on the transformations of propylene upon the uniform heating (1.5 K/min) of reagents to 718 K is studied. The products are analyzed by IR and 1H NMR spectroscopy, mass-spectrometry and gas chromatography/mass-spectrometry. It is established based on the temperature dependences of the pressure of reagents that the addition of pyrite in the absence of water gives rise to a decrease in the starting temperature of propylene oligomerization. In the absence of pyrite, the addition of water suppresses propylene oligomerization. A synergetic effect of supercritical water and pyrite on the degree of conversion of propylene is revealed. It is shown that hydrogen sulfide, thiols, and methyl-derivatives of thiophene are formed in the presence of pyrite, as well as the yield of aromatic and polyaromatic hydrocarbons increases. The mechanisms of the observed processes are discussed. 相似文献
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N. A. Dugin M. B. Nechaeva A. A.Antipenko A. F. Dement’ev Yu. V. Tikhomirov 《Radiophysics and Quantum Electronics》2011,54(3):159-165
We present the results of experiments on measuring the antenna pattern and alignment of the RT-14 and RT-15 radio telescopes
located in the radioastronomy observatories of the Radiophysical Research Institute of Nizhny Novgorod by signals from space
satellites of the GLONASS and Navstar navigation systems. The efficiency of using signals of the navigation satellites to
measure a number of parameters of the antenna systems is analyzed. 相似文献
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Antipenko B. M. Vikhrov M. N. Mak A. A. Pis'mennyi V. A. Polikarpova V. N. Tomashevich Yu. V. 《Journal of Applied Spectroscopy》1978,29(2):921-926
Journal of Applied Spectroscopy - 相似文献
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A. V. Levanov I. V. Kuskov K. B. Koiaidarova E. I. Antipenko V. V. Lunin 《Kinetics and Catalysis》2006,47(5):682-685
The effect of sulfuric acid concentration on Cl2 evolution in the reaction between O3 and Cl? has been investigated. The catalytic effects of metal ions in this reaction have been studied as a function of solution acidity. The chlorine evolution rate increases markedly with increasing acid concentration. At acid concentrations below 4 mol/l, the most effective catalyst is Co2+. The catalytic activities of Fe3+ and Cu2+ peak at $C_{H_2 SO_4 } $ = 4.8 mol/l. In passing to highly acidic solutions ( $C_{H_2 SO_4 } $ > 5 mol/l), the catalytic activity of the metal ions decreases, but the chlorine evolution rate remains high owing to the high acidity. Kinetics of VO2+ oxidation with ozone in acid media have been studied, and the ozone solubility in aqueous sulfuric acid has been measured. 相似文献
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A. V. Levanov A. R. Gromov E. E. Antipenko V. V. Lunin 《Russian Chemical Bulletin》2000,49(2):380-383
Formic and acetic acids are formed by the low-temperature (77 K) condensation of a mixture of methane and water vapor dissociated
by MW discharge at a low pressure. The effect of experimental conditions on the yield of HCOOH and AcOH was studied under
different experimental conditions. The yields of H, OH, and O2 from MW discharge in the CH4+H2O mixture were determined by ESR in the gas phase under the experimental conditions used to synthesize HCOOH and AcOH. The
kinetics of the gas phase reactions in the connecting channel was simulated. The mechanism of formation of HCOOH and AcOH
through the interaction of active species from the gas phase on the condensate surface was suggested.
Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 2, pp. 379–382, February, 2000. 相似文献
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One of the methods for the synthesis of peroxy-radical condensates is the condensation at liquid nitrogen temperature of an
H2+O2 mixture dissociated in an electrical discharge at low pressure. Peroxy-radical condensates are thought to contain substantial
quantities of higher hydrogen peroxides H2O3 and H2O4. The present work investigates the influence of experimental parameters on the synthesis of peroxy-radical condensates from
an H2+O2 mixture, analyses the relevant literature, and recommends the optimal experimental conditions for the synthesis. The synthesis
is carried out in a U-tube electrical discharge reactor (inner diameter ∼15 mm), immersed in liquid nitrogen, at rather low
pressure (0.5–1 Torr). The maximum conversion of initial O2 into higher hydrogen peroxides was observed at a composition of initial gas mixture of 66.7% H2 + 33.3% O2. 相似文献