Центральная Научная Библиотека УрО РАН

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   П 42


    Поведение нептуния, америция и кюрия при пироэлектрохимической переработке оксидного топлива в хлоридных расплавах [] / М. В. Кормилицын, С. К. Вавилов, А. В. Бычков, П. Т. Породнов, О. В. Скиба, В. В. Смоленский // 11-я Конференция по физической химии и электрохимии расплавленных и твердых электролитов: Тез. докл. / Ин-т высокотемператур. электрохимии УрО РАН. - 1998. - Т. 1: Расплавленные электролиты. - С. 107

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
НЕПТУНИЙ -- АМЕРИЦИЙ -- КЮРИЙ -- ПЕРЕРАБОТКА ПИРОЭЛЕКТРОХИМИЧЕСКАЯ -- ТОПЛИВО ОКСИДНОЕ -- РАСПЛАВ ХЛОРИДНЫЙ -- Am -- Np -- Cm -- ХИМИЯ

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   T 44


    The electrodeposition of rhenium on the oriented rhenium foils from molten salts [Text] / N. O. Esina, L. M. Minchenko, A. A. Pankratov, V. A. Isaev // Progress in Molten Salt Chemistry: Proceedings from the EUCHEM 2000 Conference on Molten Salts (Denmark, August 20-25, 2000). - 2000. - V. 1. - P203-207. - Bibliogr.: p. 206-207 (7 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
СОЛИ РАСПЛАВЛЕННЫЕ -- РАСПЛАВ ГАЛОГЕНИДНЫЙ -- РЕНИЙ -- Re -- ЭЛЕКТРООСАЖДЕНИЕ РЕНИЯ -- МОРФОЛОГИЯ ОСАДКОВ -- СТРУКТУРА ОСАДКОВ -- ТЕКСТУРА РОСТА ОСАДКОВ -- ОСАДКИ ЭПИТАКСИАЛЬНЫЕ
Аннотация: The epitaxial growth of rhenium electrodeposited from halide melts onto the poly- and monocrystalline rhenium foil with different orientations: (1010), (1120) and (0001) was investigated. It was established that the epitaxial growth onto the rhenium monocrystalline foils with (0001) orientation occurred at temperature 870-920 C in the range of the cathodic current densities 0.01-0.10 A/cm2. If the orientation of rhenium substrates disagreed with the direction of the growth texture broke up and the formation of the growth texture began. The surface morphology of the rhenium deposits was studied too. The microhardness of the epitaxial monocrystalline rhenium layers and the deposits with the growth texture (0001) was measured. It was found that the anisotropy of the face growth rate took place

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   P 87

    Potapov, A. M.
    Electronic absorption spectra of CeCl3 in molten alkali chlorides [Text] / A. M. Potapov, A. B. Salyulev // Progress in Molten Salt Chemistry: Proceedings from the EUCHEM 2000 Conference on Molten Salts (Denmark, August 20-25, 2000). - 2000. - V. 1. - P429-433. - Bibliogr.: p. 433 (9 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
СПЕКТР ЭЛЕКТРОННЫЙ -- ХЛОРИД ЦЕРИЯ -- ЦЕРИЙ -- Ce -- CeCl3 -- Na -- NaCl -- NaCl-KCl -- K -- KCl -- Cs -- CsCl -- ХЛОРИД ЩЕЛОЧНЫХ МЕТАЛЛОВ -- МЕТАЛЛЫ ЩЕЛОЧНЫЕ -- ХЛОРИД НАТРИЯ -- НАТРИЙ -- ХЛОРИД КАЛИЯ -- КАЛИЙ -- ХЛОРИД ЦЕЗИЯ -- ЦЕЗИЙ
Аннотация: Electronic absorption spectra (EAS) of dilute solutions of CeCl3 in molten NaCl, NaCl-KCl (1:1), KCl, and CsCl were investigated over the range 40000 cm(-1) and temperature up to 1000 C. The only band found was assigned as 4f-5d transition

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   S 18

    Salyulev, A. B.
    Electrical conductivity of molten polyvalent metal chloride-phosphorus chloride mixtures [Text] / A. B. Salyulev, A. A. Red'kin, V. A. Khokhlov // Progress in Molten Salt Chemistry: Proceedings from the EUCHEM 2000 Conference on Molten Salts (Denmark, August 20-25, 2000). - 2000. - V. 1. - P467-469. - Bibliogr.: p. 469 (10 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ЭЛЕКТРОПРОВОДНОСТЬ РАСПЛАВОВ -- РАСПЛАВ ХЛОРИДНЫЙ -- ХЛОРИД ФОСФОРА -- ФОСФОР -- P -- ХЛОРИД РАСПЛАВЛЕННЫЙ -- МЕТАЛЛЫ ПОЛИВАЛЕНТНЫЕ -- ХЛОРИД ПОЛИВАЛЕНТНЫХ МЕТАЛЛОВ -- ПЕНТАХЛОРИД ФОСФОРА -- PCl5 -- MoCl5 -- TaCl5 -- ZrCl4 -- AlCl3 -- TiCl4 -- SnCl4 -- ZnCl2 -- BeCl2 -- МОЛИБДЕН -- ХЛОРИД МОЛИБДЕНА
Аннотация: Well conducting ionic mixtures are formed at mixing low conducting molten PCl5 and MoCl5, TaCl5, ZrCl4, AlCl3, TiCl4, SnCl4, ZnCl2, BeCl2. Electrical conductivity was found to rise by some orders (up to 0.1 Ohm(-1) cm(-1) at 400 C). It can be explained by ionization of molecules resulting in formation of complex cations and complex anions: PCl(+)4, MoCl(-)6, AlCl(-)4, TiCl(-)5, ZnCl(2-)4, etc.

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   L 95


    Low cost SOFC manufacturing process [Текст] / Yu. Balachov, P. Jayaweera, M. Hornbostel, A. Sanjurjo, A. S. Lipilin, B. L. Kuzin, D. I. Bronin, Yu. G. Yatluk, V. V. Sevastianov // Ceramic Engineering and Science Proceedings. - 2005. - Vol. 26, № 4. - С. 41-47

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
POTENTIAL
Аннотация: Cost remains a major barrier for commercial success of SOFC. SRI evaluated a cost competitive SOFC manufacturing process developed by Russian researchers who work in this field since the late 1950s. The process is based on thermal decomposition of organo-metallic compounds. Cost savings are possible because: (a) the deposition process is performed at atmospheric pressure, (b) all layers (electrolyte, interface layers, and anode) are deposited sequentially within the same reactor, and (c) the raw materials and equipment are inexpensive. Electrochemical test cells (sections of a single SOFC element) prepared at the IHTE have been analyzed and tested at SRI International. Each cell consists of LSM cathode, YSZ electrolyte, and platinum paste anode. Composition and microstructure were determined by SEM examination and x-ray diffraction. The electrolyte had a 0.92ZrO2+0.08Y2O3 composition with thickness 17-80 micrometers; it had cubic fluoride type structure similar to compact samples of the same material. Size of crystallites at the external layer of the electrolyte was 1-9 micrometers. In SRI's testing, a power density of ?0.45 W/cm2 was measured at 900°C. The power produced by elements under a constant load was stable for 1,500 hours of continuous operation, and the fuel elements survived multiple on/off cycles. Examination with a scanning electron microscope (SEM) before and after the tests of the elements' microstructures showed no significant transformation. SRI concluded that the core technology of the Russian SOFC generators is reliable, has high technical potential, and may offer strong competitive advantage for producing commercial products at a cost of under $500/kW.

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   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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   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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   S 90


    Studies on the oxidation rate of metallic inert anodes by measuring the oxygen evolved in low-temperature aluminium electrolysis / V. A. Kovrov, A. P. Khramov, Yu. P. Zaikov, V. N. Nekrasov , M. V. Ananyev // Journal of Applied Electrochemistry . - 2011. - Vol. 41, № 11. - С. 1301-1309. - Библиогр.: с. 1309 (16 ref.) . - ISSN 0021-891Х

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
Al -- ЭЛЕКТРОД -- ИНЕРТНЫЙ АНОД -- ПАССИВАЦИЯ -- СКОРОСТЬ ОКИСЛЕНИЯ
Аннотация: The rate of oxygen evolution on metallic inert anodes was measured as a function of current density during electrolysis of a low-melting NaF(12)–KF–AlF3 bath ([NaF + KF]/[AlF3] = 1.5 mol mol-1) at 800 °C. The oxidation rate of the anode substrate (A cm- 2) was calculated. The anode oxidation process was depressed at the potentials of oxygen evolution. The dynamics of the decrease in the oxidation rate, which were obtained in previous study by the change in geometrical size of the metallic part of the specimen, was reproduced both by the technique proposed and also in potentiostatic electrolysis at potentials below that of oxygen evolution, in some cases, depending on prepolarisation.

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   И 75


    Ионно-электронный перенос в твердых растворах Rb2-2xFe2-xPxO4 / Е. И. Лахно, Е. И. Бурмакин, И. В. Корзун, Г. Ш. Шехтман // Физика твердого тела. - 2012. - Т. 54, № 3. - С. 476-479. - Библиогр.: с. 479 (9 назв.) . - ISSN 0367-3294

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ТРАНСПОРТ ИОННЫЙ -- ЭЛЕКТРОПРОВОДНОСТЬ -- МОНОФЕРРИТ РУБИДИЯ -- ДИСПЕРСИЯ ИМПЕДАНСА
Аннотация: Синтезированы твердые растворы на основе моноферрита рубидия RbFeO2, имеющие состав Rb2-2xFe2-xPxO4, исследованы их кристаллическая структура, а также температурные и концентрационные зависимости общей и электронной составляющей проводимости. Установлено, что введение ионов P5+ резко снижает электронную проводимость, преобладающую в чистом моноферрите рубидия, одновременно увеличивая ионную электропроводность. Последняя с ростом концентрации фосфора становится доминирующей. Максимальная рубидий-катионная проводимость в исследованных материалах составляет ~ 3x 10-2 S/cm при 300oC, ~ 3x 10-1 S/cm при 700oC. Результаты сопоставляются с полученными ранее данными для аналогичных твердых растворов на основе моногаллата и моноалюмината рубидия

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10.

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   Б 91

    Бурмакин, Е. И.
    Калий-катионная проводимость в твердых растворах K3-2xPbxPO4 / Е. И. Бурмакин, Г. Ш. Шехтман // Физика твердого тела. - 2014. - Т. 56, № 6. - С. 1176-1179. - Библиогр.: с. 1179 (15 назв.) . - ISSN 0367-3294

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ПРОВОДИМОСТЬ -- КАТИОННАЯ ПРОВОДИМОСТЬ -- ЭЛЕКТРОПРОВОДНОСТЬ
Аннотация: Синтезированы и исследованы новые материалы с высокой проводимостью по катионам калия в системе K3-2xPbxPO4. Введение катионов Pb2+ приводит к существенному возрастанию электропроводности K3PO4 за счет образования калиевых вакансий и стабилизации высокотемпературной кубической модификации ортофосфата. Максимальная проводимость при низких температурах наблюдается в области составов с x = 0.15 - 0.20 и составляет от ~10-2 S · cm-1 при 400oC до ~10-1 S · cm-1 при 700oC. Обсуждаются факторы, влияющие на транспортные свойства исследованных материалов.

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11.

Инвентарный номер: нет.

   K 84

    Krotov, V.
    Anomalous Influence of Electrochemically Inert ZrCl4 on UO2 Current Efficiency During Electrolysis in (NaCl-KCl)equim-UO2Cl2-ZrCl4 Melt / V. Krotov, Ye. Filatov // Electrochimica Acta. - 2014. - Vol. 145. - С. 254-258. - Bibliogr. : p. 257-258 (29 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ЭЛЕКТРОЛИТ РАСПЛАВЛЕННЫЙ -- КАТОДНЫЙ ОСАДОК -- UO2-ZrO2
Аннотация: This paper describes the influence of ZrCl4, which is electrochemically inert under experimental conditions, on uranium dioxide current efficiency during the (NaCl-KCl)equim-UO2Cl2 (10-20 wt.%)-ZrCl4 (0-12 wt.%) melt electrolysis at temperatures of 700 and 750 °C and at electrolysis current densities of 0.08-0.63 A/cm2. An extreme dependence of the uranium dioxide current efficiency on the ZrCl4 concentration and the corresponding minimum and maximum was found. The ZrCl4 influence on the UO2 current efficiency is assumed to be caused by the changes in the mechanism of UO22+ ion reduction to uranium dioxide

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12.

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   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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13.

Инвентарный номер: нет.

   O-97


    Oxygen reduction on gold electrode in Li2CO3 / K2CO3 (62 / 38 mol %) molten electrolyte: experimental and simulation analysis / V. N. Nekrasov, A. A. Lystsov, O. V. Limanovskaya, N. N. Batalov, M. A. Konopelko // Electrochimica Acta. - 2015. - Vol. 182. - P61-66. - Bibliogr. : p. 68 (35 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
КИНЕТИКА -- МОДЕЛИРОВАНИЕ -- ЭЛЕКТРОЛИТ
Аннотация: A kinetic model of oxygen reduction at an inert electrode in a carbonate melt has been proposed. Combined with the thermodynamic calculations of the chemical equilibria in the carbonate melts and with the diffusivity values taken from the literature, the model was used to simulate kinetics of oxygen reduction reaction at a gold electrode in the Li2CO3 / K2CO3 (62 / 38 mol %) molten electrolyte under 0.33 О2 + 0.67 СО2 atmosphere at 923 K for the case of coulostatic pulse perturbation. The simulation has shown that the partial exchange current of the View the MathML source reduction step makes the largest contribution to the overall exchange current, and neutralization of the oxide ion by CO2 controls the rate of the overall electrode process. The total exchange current per one-electron electrode reaction was estimated as 83 mA/cm2. The simulation has demonstrated satisfactory agreement with the experiment.

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14.

Инвентарный номер: нет.



    High-performance anode-supported solid oxide fuel cell with impregnated electrodes / D. A. Osinkin, N. M. Bogdanovich, S. M. Beresnev, V. D. Zhuravlev // Journal of Power Sources. - 2015. - Vol. 288. - P20-25
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ТОТЭ -- ПРОПИТКА -- СИНТЕЗ ГОРЕНИЯ -- СеО2
Аннотация: The 61%NiO + 39%Zr0.84Y0.16O1.92 (NiO-YSZ) and 56%NiO + 44%Zr0.83Sc0.16Ce0.01O1.92 (NiO-CeSSZ) composite powders have been prepared using two-steps and one-step combustion synthesis, respectively. The Ni-YSZ anode substrate with a low level of electrical resistance (less than 1 mOhm cm) and porosity of about 53% in the reduced state was fabricated. The functional layer of the anode with the high level of electrochemical activity was made of NiO-CeSSZ. The single anode-supported solid oxide fuel cell with the bi-layer Ni-cermet anode, Zr0.84Sc0.16O1.92 film electrolyte and the Pt + 3% Zr0.84Y0.16O1.92 cathode was fabricated. The power density and the U–I curves of the fuel cell at initial state and after impregnation of the cathode and anode by praseodymium and cerium oxides, respectively, have been measured at different temperatures. The maximum of power density of the initial fuel cell was 0.35 W cm−2 at conditions of wet hydrogen (air) supply to the anode (cathode) at 900 °C. After the electrodes were impregnated, the value of power density increased by seven times and was approximately 2.4 W cm−2 at 0.6 V. It was suggested that after the electrodes impregnation the polarization resistance of the fuel cell was determined by the gas diffusion in the supported anode.

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15.

Инвентарный номер: нет.

   N 33

    Nechaev, G. V.
    Conductivity in sodium-yttrium-silicate and sodium-yttrium-phosphate glass / G. V. Nechaev, S. G. Vlasova, O. G. Reznitskikh // Glass Physics and Chemistry. - 2015. - Vol. 41, № 1. - P64-67. - Bibliogr. : p. 66-67 (6 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ЭЛЕКТРОПРОВОДНОСТЬ -- ТВЕРДЫЕ ЭЛЕКТРОЛИТЫ -- ИТТРИЙ
Аннотация: Sodium-Yttrium-Silicate glass composed of 35Na2O · 5.3Y2O3 · 59.7SiO2 and 37.9Na2O · 5.7Y2O3 · 56.4SiO2 and silicon—phosphorus glass composed of 37.9Na2O · 5.7Y2O3 · 51.4SiO2 · 5P2O5, which are similar in composition, have been synthesized. Thermal behavior of the above glass has been studied by the methods of dilatometry and DSC. The study of electrical characteristics of glass showed that their electrical conductivity is in the range 8 × 10−9−3 × 10−8 Sm/cm at 25°C, 5 × 10−4−10−3 siemens/cm at 300°C. The obtained values of the electrical conductivity are on the level of the best values known for sodium glassy solid electrolytes. It was found that the introduction of phosphorus oxide leads to a decrease in the conductivity of the glass.

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