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Article
LiAlO2 Prepared by Nitrates-Free Synthesis for Carbon Capture by MCFCs
Pure crystalline phase of alpha lithium aluminate, a state-of-the-art matrix support material, was directly prepared by two nitrates-free methods at 650°C. The sol-gel method included pyrolysis of a colloidal ...
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Article
Formation of Bulk Alumina Ceramics by Electrophoretic Deposition from Nanoparticle Suspensions
High-density ceramics are prepared via electrophoretic deposition (EPD) from suspensions of alumina-based nanopowders. Al2O3-based nanopowders are obtained through the electrical explosion of wires (EEW) using wi...
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Article
Effect of Chromium Oxide Additions on the Stability of Glass Ceramic Sealants for Solid Oxide Fuel Cells
The development of electrochemical generators based on solid oxide fuel cells requires the development of sealant materials that would ensure gastight junction of separate components and be chemically and ther...
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Article
Optimization of Technology for Synthesis of Li4Ti5O12 Anode Materials for Lithium-Ion Batteries
A technique was developed for the synthesis of single-phase lithium titanate of composition Li4Ti5O12 with tetraethoxytitanium as a precursor and citric acid as a complexing agent. The processes occurring during ...
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Article
Carbothermal Synthesis, Properties, and Structure of Ultrafine SiC Fibers
This paper briefly reports the results of the carbothermal synthesis of SiC from natural graphite and quartz in a reactor with a self-organizing protective CO–SiO atmosphere and in argon at a temperature betwe...
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Article
EIS analysis of electrode kinetics for La2NiO4 + δ cathode in contact with Ce0.8Sm0.2O1.9 electrolyte: from DRT analysis to physical model of the electrochemical process
The oxygen reduction kinetics on an La2NiO4 + δ electrode for electrodes of different thicknesses was investigated by means of electrochemical impedance spectroscopy. Dependences of the polarisation resistance in...
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Article
Alumina–silica glass–ceramic sealants for tubular solid oxide fuel cells
In this work, we synthesized the glasses of the SiO2–Al2O3–CaO–Na2O–MgO–K2O–B2O3–Y2O3 system and investigated their thermal properties under changes in the ratios between the components in both modifying (MgO/CaO...
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Article
Oxygen isotope exchange in praseodymium nickelate
Oxygen surface exchange kinetics and diffusion were studied in Pr2NiO4 + δ (PNO) by the isotope exchange method with gas phase equilibration in the temperature range of 600–800 °C and oxygen pressure range of 0.3...
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Article
Electrophoretic Deposition of Thin-Film Coatings of Solid Electrolyte Based on Microsize BaCeO3 Powders
Results are presented of an electrophoretic deposition of thin-film coatings based on doped barium cerate BaCeO3 on a cathode substrate La2NiO4 (LNO), which are of interest for the technology of medium-temperatur...
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Article
Single SOFC with Supporting Ni-YSZ Anode, Bilayer YSZ/GDC Film Electrolyte, and La2NiO4 + δ Cathode
Characteristics of fuel cells with supporting Ni-YSZ anode, bilayer YSZ/GDC electrolyte with the thickness of 10 μm, and La2NiO4 + δ cathode are studied. It is shown that when humid (3% water) hydrogen is supplie...
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Article
Ceramic and Transport Characteristics of Electrolytes Based on Mg-Doped LaYO3
Effect of magnesium on the sinterability, phase composition, microstructure, and transport properties of proton-conducting materials of composition LaY1–xMgxO3–δ (х = 0, 0.05, 0.1) was studied. Ceramic samples we...
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Article
Protective Coatings La–Mn–Cu–O for Stainless-Steel Interconnector 08Х17Т for SOFC, Obtained by the Electrocrystallization Method from Non-Aqueous Solutions
A novel method for the formation of the protective layer on stainless steel interconnectors for solid oxide fuel cells was developed. The method was based on the electrocrystallization of metals from non-aqueo...
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Article
Oxygen isotope exchange between the gas-phase and the electrochemical cell O2, Pt | YSZ | Pt, O2 under conditions of applied potential difference
The kinetics of oxygen isotope exchange between gas-phase oxygen and the electrochemical cell O2, Pt | ZrO2 + 10 mol % Y2O3 (YSZ) | Pt, O2 with applied potential difference (ΔU = ±1.2 V) is studied in the tempera...
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Article
Phase equilibria, water dissolution, and peculiarities of charge transfer in Ca-doped La2Zr2O7–α
A series of oxides La2 - x Ca x Zr2O7–α (x = 0.00, 0.05, 0.10, 0.15, 0.20) is synthesized. It is found that in samples with the calcium content x ...
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Article
Oxygen isotope exchange in the LSM-YSZ composite under the conditions of long-term tests
The stability of the properties of the composite 40 vol % La0.6Sr0.4MnO3 − δ-60 vol % Zr0.83Y0.17O1.92 (LSM-YSZ) held for 1000 h at a temperature of 800°C and an oxygen pressure of 1.01 kPa and changes in its mic...
