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Труды Института высокотемпературной электрохимии УрО РАН
Труды Института истории и археологии УрО РАН
Труды сотрудников Института горного дела УрО РАН
Труды сотрудников Института органического синтеза УрО РАН
Труды сотрудников Института теплофизики УрО РАН
Труды сотрудников Института химии твердого тела УрО РАН
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Труды сотрудников ЦНБ УрО РАН
Публикации Черешнева В.А.
Публикации Чарушина В.Н.
Каталог библиотеки ИЭРиЖ УрО РАН
Электронная энциклопедия «Дискурсология»
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 Найдено в других БД:Каталог книг и продолжающихся изданий (19)Труды сотрудников Института органического синтеза УрО РАН (39)Труды сотрудников Института теплофизики УрО РАН (52)Труды сотрудников Института химии твердого тела УрО РАН (57)Расплавы (22)Публикации Черешнева В.А. (11)Публикации Чарушина В.Н. (17)Каталог библиотеки ИЭРиЖ УрО РАН (3)Библиометрия (1)
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Общее количество найденных документов : 33
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1.
Инвентарный номер: нет.
   
   E 99

    Ezin, A. N.
    Theoretical underpinnings of a method of reduction of operating temperature of solid oxide fuel cells under resonant light irradiation / A. N. Ezin, A. L. Samgin // International Journal of Hydrogen Energy. - 2015. - Vol. 40, № 29. - P8948-8957. - Bibliogr. : p. 8956-8957 (34 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ТОПЛИВНЫЕ ЭЛЕМЕНТЫ -- ПЕРЕНОС ПРОТОННЫЙ
Аннотация: This study examines potential benefits of adopting ultrashort optical pulses in fuel cell technology. General principles for jumping migration of protons in resonant laser fields have been elaborated. We find that, depending upon the frequency of phonon assistance, the effective activation energy for migration can be strongly diminished when excitation pulses are used. The obtained results indicate that at room temperature the picosecond-laser-induced proton transfer in rutile type oxides is much faster than that for thermal activation. Our estimates are in good agreement with time-resolved measurements for rutile samples excited by infrared light. The fundamentals of this transfer process are briefly analyzed in the light of structure diffusion and vibrational mode models. The most important conclusion to emerge from our work is that the use of the optical stimulation shows considerable promise as a means for decreasing the operating temperature of solid oxide fuel cells based on proton hopping transport.

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2.
Инвентарный номер: нет.
   
   A 60

   
    Anodic behavior of the NiO-Fe2O3-Cr2O3-Cu composite during the low-temperature electrolysis of aluminum / V. A. Kovrov, A. P. Khramov, Yu. P. Zaikov, V. M. Chumarev, E. N. Selivanov // Russian Journal of Non-Ferrous Metals. - 2014. - Vol. 55, № 1. - P8-14
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ОКСИД ХРОМА -- АНОД -- ЭЛЕКТРОЛИЗ -- РАСТВОРЕНИЕ
Аннотация: In order to fabricate oxide-metallic composites with the composition 25.3NiO-41.2Fe2O3-13.5Cr2O3-20.0Cu (wt %), the temperature and duration of sintering (1350°C, 30 min) that ensure the formation of the solid solution of chromium oxide in nickel ferrite have been determined. This material is tested as an anode for the electrolysis of the low-temperature solution with the composition 12.0NaF-36.8KF-51.2AlF3 (wt %), which was saturated with Al2O3 (t = 800°C). The amount of gaseous oxygen evolved on the anode was measured. It is shown that the main reaction on an anode at current density i = 0.015–1.0 A cm−2 is the oxidation of oxygen-containing anions from a melt with the formation of gaseous O2 and a substantial increase in the oxidation rate of the composite anode is observed at i > 1.0 A cm−2. The voltage across the electrolyzer (4.5 ± 0.5 V) and the anodic potential (2.43 ± 0.2 relative to the Al reference electrode) during a prolonged experiment (for 89 h, i = 0.4 A cm−2) indicate a stable and acceptable electrical conductivity of the material, while the dissolution rate, which was calculated by the weight loss (0.6 kg/yr) and volume loss (0.7 cm/yr), satisfy the requirements to inert anodes.

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3.
Инвентарный номер: нет.
   
   S 19

    Samgin, A. L.
    Lattice-assisted proton hopping in oxides at low temperatures / A. L. Samgin // Journal of Physics and Chemistry of Solids. - 2013. - Vol. 74, № 12. - С. 1661-1668. - Библиогр.: с. 1668 (44 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ЭЛЕКТРООСАЖДЕНИЕ -- РАФИНИРОВАНИЕ -- СПЛАВЫ
Аннотация: Stimulated diffusion of protons in oxides such as ABO3 crystals and rutile TiO2 is discussed in the context of quantum Brownian motion. A self-consistent lattice-assisted proton hopping (LAPH) model is developed by going from white noise (characteristic of the standard stochastic theory of superionic conduction) to colored noise in the Markovian limit. This model differs from the commonly used ion jump models in that the hydrogen diffusion rate prefactor is identified as a quantity proportional to the frequency of phonon assistance. Application of the quantum fluctuation–dissipation theorem suggests that the dynamic activation energy for diffusion is a function of a bath-mode frequency. The LAPH model can predict enhanced rates of barrier jumping at room temperature compared to thermally activated proton diffusion. This indicates that low-temperature solid oxide devices are potential candidates for use in hydrogen energy research. The LAPH model offers a valid explanation for the mechanism of high protonic mobility recently observed for TiO2 in a picosecond transient pump-probe experiment. This unexpected dominant lattice relaxation channel must be considered as a new classical-like (but low-temperature) proton transfer mechanism. For vibration-assisted protonic jumps to occur at low temperature, the phonon assistance must be classified as a low-frequency vibration specific to each lattice

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4.
Инвентарный номер: нет.
   
   T 44

   
    The across-plane conductivity and microstructure of SrZr0.95 Y0.05 O3 − δ thin films / L. A. Dunyushkina, S. V. Plaksin , V. M. Kuimov, V. P. Gorelov, S. V. Smirnov // Ionics. - 2013. - Vol. 19, № 12. - P1715-1722. - Bibliogr. : p. 1722 (19 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ЭЛЕКТРОПРОВОДНОСТЬ -- СПЕКТРОСКОПИЯ -- ПРОВОДИМОСТЬ ПРОТОННАЯ
Аннотация: The across-plane electrical conductivity of the proton-conducting SrZr0.95Y0.05O3 − δ thin films fabricated by chemical solution deposition on single-crystalline ZrO2 doped by 10 mol% of Y2O3 (YSZ) substrates was investigated using impedance spectroscopy. The average grain size of the films was found to increase considerably with thermal treatment. This change in grain size has a strong effect on the electrical behavior of films. Our results show that the electrochemical performance of the cell is strongly affected by the potential difference at the film/substrate interface. Coarse-grain film microstructure was proved to be preferable for the reduction of both the film resistance and interfacial barrier.

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5.
Инвентарный номер: нет.
   
   N 89

    Novoselova, A.
    The influence of solvent nature on thermodynamic properties of the reaction Tm (III)+ē ↔ Tm (II) in molten chlorides / A. Novoselova, V. Smolenski // Journal of Chemical Thermodynamics. - 2012. - Vol. 48. - С. 140-144. : граф. - Библиогр.: с. 144 (23 ref.) . - ISSN 0021-9614
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ХЛОРИДЫ -- РЗМ -- ТЕРМОДИНАМИЧЕСКИЕ СВОЙСТВА -- ОКИСЛИТЕЛЬНО-ВОССТАНОВИТЕЛЬНЫЕ ПОТЕНЦИАЛЫ
Аннотация: This work presents the results of a study of the Tm3+/Tm2+ couple redox potentials vs. Cl–/Cl2 reference electrode at the temperature range (833 to 1073) K in molten equimolar NaCl–KCl and NaCl–2CsCl eutectic by direct potentiometric method. Initial concentrations of TmCl3 in solvents did not exceed 5.0 mol%. Apparent standard redox potentials of the couples were determined in different solvents. Basic thermodynamic properties of the reaction were calculated. The dependence between the apparent standard redox potentials of the couples and the ionic potential of the solvents was established.

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6.
Инвентарный номер: нет.
   
   S 68

    Smolenski, V.
    Electrochemistry of redox potential of the couple Tm3+/Tm2+ and the formation of a Tm–Al alloy in fused NaCl–2CsCl eutectic / V. Smolenski, A. Novoselova // Electrochimica Acta. - 2012. - Vol. 63. - С. 179-184. - Библиогр.: с. 184 (53 ref.) . - ISSN 0013-4686
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
КОЭФФИЦИЕНТ ДИФФУЗИИ -- ЭЛЕКТРОВОССТАНОВЛЕНИЕ -- СТАНДАРТНЫЙ ПОТЕНЦИАЛ -- ЦИКЛИЧЕСКАЯ ВОЛЬТАМПЕРОМЕТРИЯ -- NaCl–2CsCl -- Tm3+/Tm2+
Аннотация: This work presents the electrochemical study of TmCl3 solutions in NaCl–2CsCl eutectic at the temperature range 823–973 K using inert and reactive electrodes, i.e. Mo and Al, respectively. On an inert electrode, Tm3+ ions are reduced to metallic thulium through two consecutive steps: Tm3+ + e− → Tm2+ and Tm2+ + 2e− → Tm. The electroreduction of Tm3+ to Tm2+ ions was found to be reversible at low scan rates being controlled by the rate of the mass transfer and irreversible at high scan range (>0.1 V s−1) being controlled by the rate of charge transfer. The diffusion coefficient of [TmCl6]3− complex ions was determined at different temperatures. Arrhenius law was verified by plotting the variation of the logarithm of the diffusion coefficient vs. reverse temperature. The apparent standard potential of the soluble-soluble redox system Tm3+/Tm2+ was obtained by cyclic voltammetry. The electrode reactions of Tm3+ solutions at an Al electrode were also investigated. The results showed that for the extraction of thulium from molten chlorides, the use of a reactive electrode made of aluminum leading to Al–Tm alloys seems to be a pertinent route

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7.
Инвентарный номер: нет.
   
   N 89

    Novoselova, A.
    The influence of solvent nature on thermodynamic properties of the reaction TM(III) + E - TM(II) In molten chlorides / A. Novoselova, V. Smolenski // Journal of Chemical Thermodynamics,. - 2012. - Vol. 48. - С. 140-144.
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ПОТЕНЦИОМЕТРИЧЕСКИЙ МЕТОД -- РАСТВОРИТЕЛЬ -- ПОТЕНЦИАЛЫ ОКИСЛИТЕЛЬНО-ВОССТАНОВИТЕЛЬНЫЕ
Аннотация: This work presents the results of a study of the Tm3+/Tm2+ couple redox potentials vs. Cl–/Cl2 reference electrode at the temperature range (833 to 1073) K in molten equimolar NaCl–KCl and NaCl–2CsCl eutectic by direct potentiometric method. Initial concentrations of TmCl3 in solvents did not exceed 5.0 mol%. Apparent standard redox potentials of the couples were determined in different solvents. Basic thermodynamic properties of the reaction were calculated. The dependence between the apparent standard redox potentials of the couples and the ionic potential of the solvents was established.

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8.
Инвентарный номер: нет.
   
   E 43

   
    Electrochemical behaviour of curium(III) ions in fused 3LiCl–2KCl eutectic [] / A. Osipenko, A. Maershin, V. Smolenski, A. Novoselova, M. Kormilitsyn, A. Bychkov // Journal of Electroanalytical Chemistry. - 2011. - Vol. 651, № 1. - С. 67-71. - Bibliogr. : p. 71 (39 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ТЕРМОДИНАМИКА -- КОЭФФИЦИЕНТ ДИФФУЗИИ
Аннотация: This work presents the electrochemical study of Cm(III) in fused 3LiCl–2KCl eutectic in the temperature range 723–923 K. Transient electrochemical techniques such as cyclic, square wave voltammetries, and chronopotentiometry have been used in order to investigate the reduction mechanism of curium ions up to metal. The results obtained show that the reduction reaction takes place in a single step . The diffusion coefficient of Cm3+ ions was determined by cyclic voltammetry at different temperatures by applying Berzins–Delahay equation. The validity of the Arrhenius law was also verified and the activation energy for diffusion was found to be 28.21 kJ mol-1. The apparent standard electrode potential of the redox couple Cm(III)/Cm(0) was found by chronopotentiometry at several temperatures. The thermodynamic properties of curium trichloride have also been calculated.??

\\\\Cserver\\dist\\НБО\\Cтатьи БД ИВТЭ\\Journal of Electroanalytical Chemistry\\JEC2011 V.651, N . 1- P.67-71.pdf,
http://www.sciencedirect.com/science/article/pii/S1572665710004455
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9.
Инвентарный номер: нет.
   
   E 43

   
    Electrochemistry of oxygen-free curium compounds in fused NaCl–2CsCl eutectic [Текст] / A. Osipenko, A. Maershin, V. Smolenski, A. Novoselova, M. Kormilitsyn, A. Bychkov // Journal of Nuclear Materials . - 2010. - Vol. 396, № 1. - С. 102-106. - Библиогр.: с. 106 (37 ref.) . - ISSN 0022-3115
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
MOLTEN CHLORIDES -- ХРОНОПОТЕНЦИОМЕТРИЯ -- ВОССТАНОВЛЕНИЕ -- КОЭФФИЦИЕНТ ДИФФУЗИИ -- ТЕРМОДИНАМИЧЕСКИЕ СВОЙСТВА
Аннотация: This work presents the electrochemical study of Cm(III) in fused NaCl–2CsCl eutectic in the temperature range 823–1023 K. Transient electrochemical techniques such as cyclic, differential pulse and square wave voltammetry, and chronopotentiometry have been used in order to investigate the reduction mechanism of curium ions up to the metal. The results obtained show that the reduction reaction takes place in a single step . The diffusion coefficient of [CmCl6]3- complex ions was determined by cyclic voltammetry at different temperatures by applying the Berzins–Delahay equation. The validity of the Arrhenius law was also verified and the activation energy for diffusion was found to be 44.46 kJ/mol. The apparent standard electrode potential of the redox couple Cm(III)/Cm(0) was found by chronopotentiometry at several temperatures. The thermodynamic properties of curium trichloride have also been calculated.????

\\\\Cserver\\dist\\НБО\\Cтатьи БД ИВТЭ\\Journal of Nuclear Materials\\JNM2010, V 396, N 1. - P. 102-106.pdf
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10.
Инвентарный номер: нет.
   
   T 44

   
    The influence of electrode material nature on the mechanism of cathodic reduction of ytterbium (III) ions in fused NaCl–KCl–CsCl eutectic [Текст] / V. Smolenski, A. Novoselova, A. Osipenko, M. Kormilitsyn // Journal of Electroanalytical Chemistry. - 2009. - Vol. 633, № 2. - С. 291-296. - Библиогр.: с. 296 (28 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
РАСПЛАВЛЕННЫЕ ХЛОРИДЫ -- СПЛАВ
Аннотация: This work presents the influence of electrode material nature on the mechanism of cathodic reduction of ytterbium (III) ions in fused NaCl–KCl–CsCl eutectic at the temperature range 723–1073 K. Transient electrochemical techniques such as linear sweep, cyclic, semi-integral and square wave voltammetry, and potentiometry at zero current have been used in order to investigate the reduction mechanism of ytterbium ions on inert and active working electrodes, transport parameters and thermodynamics properties of the ytterbium compounds. The influence of the material of working electrode on the mechanism of the cathode process was determined. The results obtained show that the reduction reaction on W electrode is reversible being controlled by the rate of the mass transfer. The diffusion coefficient of [YbCl6]3- complex ions was calculated at different temperatures and the apparent standard electrode potential of the soluble–soluble redox system Yb3+/Yb2+ was obtained. The reduction reaction of ytterbium (III) ions on Al active electrode was investigated. Al2Yb and Al3Yb alloys are formed during the polarization on the surface of working electrode

\\\\Cserver\\dist\\НБО\\Cтатьи БД ИВТЭ\\Journal of Electroanalytical Chemistry\\2009, V. 633, № 2, С. 291-296.pdf
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