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Article
Assessment of prospective cathodes based on (1-x)Ca3Co4O9+δ-xBaCe0.5Zr0.3Y0.1Yb0.1O3-δ composites for protonic ceramic electrochemical cells
This work presents investigation of novel composite electrodes comprising misfit layered oxide Ca3Co4O9+δ and protonic conductor BaCe0.5Zr0.3Y0.1Yb0.1O3-δ. Materials for the study were synthesized by the pyrolysi...
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Article
Formation of Thin-Film Electrolyte by Electrophoretic Deposition onto Modified Multilayer Cathode
Possibility of forming a gas-tight thin-film solid electrolyte by the electrophoretic deposition method on a modified multilayer cathode was examined. The main goal of the study was to find such technological ...
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Article
Reversible Solid Oxide Fuel Cell for Power Accumulation and Generation
The anodic and cathodic polarization dependences for the oxygen electrode based on lanthanum-strontium manganite and the fuel Ni-cermet electrode are studied in the temperature range of 700–900°С in gas media ...
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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
Effect of the Copper Oxide Sintering Additive on the Electrical and Electrochemical Properties of Anode Materials Based on Sr2Fe1.5Mo0.5O6–δ
The effect of introducing 1–3 wt % copper oxide sintering additive on the electrical and electrochemical characteristics of promising anode materials for solid oxide fuel cells based on Sr2Fe1.5Mo0.5O6–δ was stud...
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Article
Electrochemical properties of doped lantanum–nickelate-based electrodes
This work is devoted to the studying of effects of La2NiO4 do** with alkaline-earth elements: Ca, Sr, and Ba (at an amount of 15 mol %) on its structural, electrical, and electrochemical properties. The effects...
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Article
Composite electrodes for proton conducting electrolyte of CaZr0.95Sc0.05O3 – δ
A new method of obtaining gastight ceramic based on CaZr0.95Sc0.05O3 – δ is presented. The microstructure and electric properties of the obtained samples, same as the behavior of composite electrodes in contact w...
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Article
Electrode materials for solid oxide fuel cells with proton-conducting electrolyte based on CaZrO3
The work studies chemical stability and thermal compatibility of composite electrodes in contact with proton electrolyte based on calcium zirconate. Composite of electrolytes of CaZr0.95Sc0.05O3–δ and CaZr0.9Y0.1
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Article
Evolution of activity of impregnated with CeO2 Ni-SSZ anodes of fuel cells
The behavior of polarization resistance of 50% Ni + 50% Zr0.9Sc0.1O1.95 electrodes in contact with Zr0.84Y0.16O1.92 electrolyte both in their initial state and after the introduction of cerium oxide into their po...
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Article
The effect of copper on the properties of La1.7Ca0.3NiO4 + δ-based cathodes for solid oxide fuel cells
The aim of the work was to develop the electrochemically active cathodes with a low in-plane resistance for application in the intermediate-temperature solid oxide fuel cells in contact with CeO2-based solid elec...
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Article
Cathodes based on rare-earth metal nickelate ferrites prepared from industrial raw materials for solid oxide fuel cells
Powders of composite materials based on lanthanum nickelate-ferrite with different contents of lanthanides were synthesized using Ln-Ni-Fe-O (LnNF) mischmetal. The phase composition of the powders was determin...
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Article
Thermal expansion, gas permeability, and conductivity of Ni-YSZ anodes produced by different techniques
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...
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Article
Single fuel cell with supported LSM cathode
Single fuel cells with bilayer supported cathodes are manufactured and tested. The cathodes consist of a high-porous La0.6Sr0.4MnO3 support with the thickness of approximately 1 mm and a functional composite laye...
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Article
Single solid-oxide fuel cells with supporting ni-cermet anode
Single solid-oxide fuel cells (SOFCs) with a porous (36-41%) supporting Ni-cermet anode are manufactured and tested. The effect of the thickness of the supporting Ni-cermet anode on the electrochemical charact...
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Article
Options for adjustment of microstructure and conductivity of cathodic substrates of La(Sr)MnO3
The electrodes of solid-oxide fuel cells (SOFCs) must be characterized by high conductivity to decrease ohmic losses and sufficient porosity to provide high gas diffusion rate. In the cases, when the SOFC elec...
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Article
Nickel-cermet electrodes for high-temperature electrochemical devices made using nanomaterials
Characteristics of nickel-cermet anodes obtained from weakly aggregated NiO nanopowders made by wire electric blasting (NiO/WEB) were studied. Electrodes made of NiO/WEB nanopowders have low sheet resistance (...
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Article
Effect of oxygen activity and water partial pressure to degradation rate of Ni cermet electrode contacting Zr0.84Y0.16O1.92 electrolyte
The time curves of full polarization resistance of Ni cermet electrode modified with CeO2 − δ additive were studied by means of impedance spectroscopy in binary gas mixtures x% H2 + (100 − x)% H2O, 10% CO + 90% C...
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Article
Cathodes based on (La, Sr)MnO3 modified with PrO2 − x
The electrochemical characteristics of composite cathodes made of (La, Sr) MnO3-(Zr, Sc)O2 (LSM-SSZ), modified with PrO2 − x additive, and designed for application in solid oxide fuel cel...
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Article
Gas diffusion hindrances on Ni cermet anode in contact with Zr0.84Y0.16O1.92 solid electrolyte
The electrochemical behavior of Ni cermet electrode with CeO2 − x additive in contact with YSZ electrode was studied by means of impedance spectroscopy in H2, H2O, CO2, CO, He, and Ar gas...
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Article
Effect of Bi0.75Y0.25O1.5 electrolyte additive in collector layer to properties of bilayer composite cathodes of solid oxide fuel cells based on La(Sr)MnO3 and La(Sr)Fe(Co)O3 compounds
The sintering features, electroconductivity, and electrochemical characteristics of bilayer electrodes with functional composite layers based on La(Sr)MnO3 (LSM) and La(Sr)Fe(Co)O3 with LSM collector layer and Bi...
