K 21 Karpachev, S. V. Electrocapillary phenomena in the case of liquid metals in contact with solid electrolytes [Text] / S. V. Karpachev, V. V. Salnikov, D. I. Bronin // 29-th Meet. Int. Soc. Electrochem. (Budapest, 28 aug.-2 sept. 1978): Extend. Abstr. - 1978. - Part 1. - P167-169. Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ХИМИЯ -- ЯВЛЕНИЯ ЭЛЕКТРОКАПИЛЛЯРНЫЕ -- ЭЛЕКТРОКАПИЛЛЯРНЫЕ ЯВЛЕНИЯ -- ЭЛЕКТРОЛИТЫ ТВЕРДЫЕ -- ТВЕРДЫЕ ЭЛЕКТРОЛИТЫ -- МЕТАЛЛЫ ЖИДКИЕ -- ЖИДКИЕ МЕТАЛЛЫ |
T 44 The effect of doping on properties of La1-xSrxGa1-yMgyO3-a [Text] / V. P. Gorelov, D. I. Bronin, J. V. Sokolova, A. A. Pankratov, H. Nafe, F. Aldinger // Physics and chemistry of novel materials: 4th Bilateral Russian-German Symposium (Febr. 24-March 1, 1999): Progr. and abstr. - 1999. - 4.9 (2 pp.). - Bibliogr.: 3 ref. Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ПЕРОВСКИТ -- МАГНИЙ -- La -- Ga -- LaGaO3 -- ЛАНТАН -- ГАЛЛИЙ -- СТРОНЦИЙ -- Sr -- СВОЙСТВА -- ЦЕРИЙ -- ОКСИД ЦЕРИЯ -- ДИОКСИД ЦЕРИЯ -- Ce -- CeO2 -- Gd -- Gd2O3 -- ОКСИД ГАДОЛИНИЯ -- ГАДОЛИНИЙ -- ДОБАВКИ -- Mg |
O-56 On the behavior of a dense indium oxide/yttria-stabilized zirconia electrode [Text] / D. I. Bronin, B. L. Kuzin, H. Nafe, F. Aldinger // Solid State Ionics. - 1999. - V. 120, N 1-4. - P13-25. - Bibliogr.: 37 ref. . - ISSN 0167-2738 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ОКСИД ИНДИЯ -- ИНДИЙ -- In -- In2O3 -- СВОЙСТВА ЭЛЕКТРИЧЕСКИЕ -- СВОЙСТВА СТРУКТУРНЫЕ -- СВОЙСТВА ЭЛЕКТРОХИМИЧЕСКИЕ -- ПОЛЯРИЗАЦИЯ АНОДНАЯ -- Zr -- ZrO2 -- Y2O3 -- Y -- ДИОКСИД ЦИРКОНИЯ -- ОКСИД ЦИРКОНИЯ -- ОКСИД ИТТРИЯ -- ИТТРИЙ -- ZrO2-Y2O3 Аннотация: The electrical and electrochemical properties a dense In2O3 layer in contact with a single crystal YSZ electrolyte were studied. As a result of dc and ac investigations, it was found that under anodic polarization the rate of Faraday reaction at the surface of the In2O3 electrode is as low as in an ionically blocked electrode. Under cathodic polarization, however, the electrochemical activity of the electrode improves depending on the magnitude of the polarization voltage. Likewise, the electrode polarization resistance decreases after platinum or praseodymium oxide having been deposited on the surface of the In2O3 layer. The possible mechanism responsible for such a peculiar behaviour and the limiting step of the electrode reactions are discussed |
P 80 Polarized-Cell Measurements on Yttria-Stabilized Zirconia Using an Anodically Blocked Electrode [Text] = Polarized-Cell Measurements on Yttria-Stabilized Zirconia Using an Anodically Blocked Electrode / D. I. Bronin, B. L. Kuzin, H. Nafe, F. Aldinger // Journal of the Electrochemical Society. - 1999. - V. 146, N 6. - P2034-2037. - Bibliogr.: 19 ref. . - ISSN 0013-4651 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ХИМИЯ -- In2O3 -- In -- ИНДИЙ -- ОКСИД ИНДИЯ -- ЭЛЕКТРОДЫ БЛОКИРУЮЩИЕ -- БЛОКИРУЮЩИЕ ЭЛЕКТРОДЫ -- ЭЛЕКТРОЛИТЫ ТВЕРДЫЕ -- ТВЕРДЫЕ ЭЛЕКТРОЛИТЫ -- Y2O3 -- ZrO2 -- ZrO2-Y2O3 -- ОКСИД ЦИРКОНИЯ -- ОКСИД ИТТРИЯ -- ДИОКСИД ЦИРКОНИЯ -- ПРОВОДИМОСТЬ ДЫРОЧНАЯ -- ДЫРОЧНАЯ ПРОВОДИМОСТЬ -- ЦИРКОНИЙ -- ИТТРИЙ -- Zr -- Y Аннотация: Hebb-Wagner polarization measurements were performed on yttria-stabilized zirconia in which, for the first time, an anodically blocked electrode was employed. The data for the hole conductivity determined by the method is in complete agreement with the results known so far from the literature. The effect of ion blocking is achived by an extreme reduction of the oxygen exchange rate at the solid/gas interface after the yttria-stabilized zirconia surface had been exposed to In2O3. Owing to the particular properties of this electrode, impedance spectroscopy can even be employed, which has never been reported before for use in determining the hole conductivity of a solid electrolyte |
T 44 The effect of doping and processing conditions on properties of La1-xSrxGa1-yMgyO3-alpha [Text] / V. P. Gorelov, D. I. Bronin, J. V. Sokolova, H. Nafe, F. Aldinger // Journal of the European Ceramic Society. - 2001. - V. 21, N 13. - P2311-2317. - Библиогр.: p. 2317 (10 назв.) . - ISSN 0955-2219 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ХИМИЯ -- La1-xSrxGa1-yMgyO3-альфа -- La -- Sr -- Ga -- Mg -- ЛАНТАН -- СТРОНЦИЙ -- ГАЛЛИЙ -- МАГНИЙ -- ЭЛЕКТРОПРОВОДНОСТЬ -- КЕРАМИКА Аннотация: The phase composition and electrical conductivity of ceramics based on La1-xSrxGa1-yMgyO3-alpha (LSGM) were studied after doping with different quantities of Sr and Mg. The effect of the processing conditions on the density of the LSGM ceramics was analysed. By means of microprobe X-ray analysis it was found that the limit solubility of Sr and Mg in LaGaO3 corresponded to x = y ~ 0.16. If excess Sr and/or Mg is added, LaSrGa3O7 and/or La4Ga2O9 phases are formed respectively in addition to the main LaGaO3 perovskite phase. No other impurity phases were detected. The maximum electrical conductivity of LSGM was achieved in the region of the limit solubility of the dopants |
K 96 Kuzin, B. L. Electrical Double-Layer Capacitance of the M, O2/O(2-) Interfaces (M = Pt, Au, Pd, In2O3; O(2-) = Zirconia-Based Electrolyte) [Text] / B. L. Kuzin, D. I. Bronin // Solid State Ionics. - 2000. - V.136-137. - P45-50. - Библиогр.: p. 50 (14 назв.) . - ISSN 0167-2738 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ХИМИЯ -- Pt -- Au -- Pd -- In2O3 -- ПЛАТИНА -- ЗОЛОТО -- ПАЛЛАДИЙ -- ОКСИД ИНДИЯ -- ИНДИЙ -- In -- ТВЕРДЫЕ ЭЛЕКТРОЛИТЫ -- ЭЛЕКТРОЛИТЫ ТВЕРДЫЕ -- ZrO2 -- Zr -- ДИОКСИД ЦИРКОНИЯ -- ЦИРКОНИЙ -- ЕМКОСТЬ -- СЛОИ ЭЛЕКТРИЧЕСКИЕ -- ЭЛЕКТРИЧЕСКИЕ СЛОИ -- СЛОИ ДВОЙНЫЕ -- ДВОЙНЫЕ СЛОИ -- ПОВЕРХНОСТЬ ЭЛЕКТРОЛИТА |
S 89 Structure and phase transitions of (La, Sr)(Ga, Mg)O3-alpha solid electrolyte [Text] / S. N. Shkerin, D. I. Bronin, S. A. Kovyazina, V. P. Gorelov, A. V. Kuzmin, Z. S. Martemyanova, S. M. Beresnev // Solid State Ionics. - 2004. - V. 171, N 1-2. - P129-134. - Bibliogr.: p. 133-134 (35 ref.) . - ISSN 0167-2738 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): La0.88Sr0.12Ga0.82Mg0.18O2.85 -- La -- Sr -- Ga -- LANTHANUM -- STRONTIUM -- GALLIUM -- LANTHANUM GALLATE -- LSGM -- SOLID ELECTROLYTES -- OXYGEN CONDUCTION -- PHASE TRANSITIONS Аннотация: Electrical conductivity, Raman scattering spectra, and thermal expansion of the solid solution based on lanthanum gallate having the formula La0.88Sr0.12Ga0.82Mg0.18O2.85 (LSGM12-18) were studied as a function of temperature. X-ray diffraction analysis of the samples at room temperature was performed. A dilatometric examination demonstrated that phase transitions of the second order took place at 775 plus-minus 10 and 880 plus-minus 20 K. The transition at 880 K was confirmed both by Raman scattering spectra and by a change in the activation energy of the electrical conductivity. This phase transition is probably due to a change of the oxygen sublattice symmetry |
B 39 Behavior of manganite electrodes in contact with LSGM electrolyte: the nature of low electrochemical activity [Текст] / D. I. Bronin, B. L. Kuzin, I. Yu. Yaroslavtsev, N. M. Bogdanovich // Journal of Solid State Electrochemistry. - 2006. - Vol. 10, № 8. - С. 651-658. - Библиогр. : с. 657 (43 назв.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): MANGANITE ELECTRODES \\\\Cserver\\dist\\НБО\\Cтатьи БД ИВТЭ\\Journal of Solid State Electrochemistry\\2006, V. 10, № 8,С. 651-658.pdf |
B 87 Bronin, D. I. Solid solutions based on lanthanum gallate as an electrolyte of solid-oxide fuel cell elements [Текст] / D. I. Bronin, B. L. Kuzin // Fundamental'nye Problemy Elektrokhimicheskoi Energetiki, Materialy Mezhdunarodnoi Konferentsii, 5th, Saratov, Russian Federation, June 24-28, 2002. - 2002. - С. 20-22 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): SOLID-OXIDE |
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 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. |
I-34 Identificftion of the reaction mechanism of the Pt, O2/La(Sr)Ga(MG)O3-дельта electrode system [Текст] / D. I. Bronin, I. Yu. Yaroslavtsev, H. Nafe, F. Aldinger // Electrochimica Acta. - 2004. - Vol. 49, № 15. - С. 2435-2441. Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ELECTRODE SYSTEM -- Pt, O2/La(Sr)Ga(MG)O3-дельта \\\\Cserver\\dist\\НБО\\Cтатьи БД ИВТЭ\\Electrochimica Acta\\2004, V. 49, № 15, С. 2435-2441.pdf |
K 21 Karpachev, S. V. Electrocapillary phenomena in the case of liquid metals in contact with solid electrolytes [Text] / S. V. Karpachev, V. V. Salnikov, D. I. Bronin // 29-th Meet. Int. Soc. Electrochem. (Budapest, 1978, Aug. 28 - Sept. 2): Extend. Abstr. - 1978. - Part 1. - P167-169. Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): PHENOMENA ELECTROCAPILLARY -- ELECTROLYTE SOLID -- METAL LIQUID |
T 44 Thermal expansion, gas permeability, and conductivity of Ni-YSZ anodes produced by different techniques / D. A. Osinkin, D. I. Bronin, S. M. Beresnev, N. M. Bogdanovich, G. K. Vdovin, T. A. Demyanenko, V. D. Zhuravlev // Journal of Solid State Electrochemistry. - 2014. - Vol. 18, № 1. - P149-156 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): АНОД КЕРАМИЧЕСКИЙ -- ЭЛЕКТРОПРОВОДНОСТЬ -- ПОРОШКИ Аннотация: The supported Ni-YSZ (50 wt.% Ni + 50 wt.% Zr0.84Y0.16O1.92) anodes were produced of powders, obtained by the ceramic method, combustion synthesis, deposition of nickel oxide onto the YSZ ceramics, and deposition of 28 wt.% of nickel oxide onto the 39 wt.% NiO + 61 wt.% YSZ powders. The influence of the NiO-YSZ powder production technique, the amount of pore former and sintering temperature on the porosity, gas permeability, thermal expansion, and anode conductivity were studied. The porosity of anodes made of powders obtained by the ceramic method is always lower than the porosity of the anodes made of powders produced by combustion synthesis under otherwise equal conditions. The anode electrical conductivity greatly depends on the powder production techniques, while the anode thermal expansion is only slightly influenced by them. |
C 47 Characterization of Ni-cermet degradation phenomena I. Long term resistivity monitoring, image processing and X-ray fluorescence analysis / M. V. Ananyev , D. I. Bronin, D. A. Osinkin, V. A. Eremin, R. Steinberger-Wilckens, L. G. J. De Haart, J. Mertens . - [S. l. : s. n.]. - Б. ц. Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ПОРИСТОСТЬ -- УДЕЛЬНОЕ СОПРОТИВЛЕНИЕ -- ОКСИД ИТТРИЯ -- ОКСИД ЦИРКОНИЯ Аннотация: The present paper is devoted to Ni-cermet degradation phenomena and places emphasis on experimental approaches and data handling. The resistivity of Ni-YSZ cermet (nickel and 8 mol.% yttria stabilized zirconia) anode substrates was monitored during 3000 h at 700 and 800 °C in a gas mixture of 80 vol.% water vapor and 20 vol.% hydrogen. The experimentally evaluated dependence of resistivity of the Ni-YSZ substrates can be well described by exponential decay functions. Post test analysis by image processing and XRF (X-ray fluorescence) analysis for characterization of the microstructure and elemental composition were carried out for virgin samples and after 300, 1000 and 3000 h of exposure time. The 3D-microstructure was reconstructed using an original spheres packing algorithm. Two processes leading to the Ni-YSZ degradation were observed: Ni-phase particle coarsening and volatilization. The effect of these processes on resistivity and such microstructure parameters as porosity, Ni-phase fraction, Ni and YSZ phases particle size distributions, triple phase boundary length, and tortuosity factor are considered in this paper. |