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Article
Structure, Oxygen Mobility, and Electrochemical Characteristics of La1.7Ca0.3Ni1 ‒ xCuxO4 + δ Materials
The Ruddlesden‒Popper phases pertain to numerous promising materials with the mixed ionic-electronic conductivity used in devices such as oxygen-conducting membranes, solid oxide fuel cells (SOFC), and electro...
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Article
Formation of a Single- and Two-Layer Solid Electrolyte by Electrophoresis on Anodic Substrates Metalized with Silver or Platinum
A study is performed of the possibilities of the electrophoretic deposition (EPD) of a single- and two-layer film electrolyte based on Ce0.8Sm0.2O1.9 (SDC) and BaCe0.8Sm0.19Cu0.01O3 (BCSCuO). The materials are de...
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Article
Modifying Suspensions for the Electrophoretic Deposition of BaCe0.5Zr0.3Y0.1Yb0.1O3–δ Solid Electrolyte
Powder of proton-conducting BaCe0.5Zr0.3Y0.1Yb0.1O3−δ (BCZYYbO) electrolyte is synthesized using the citrate–nitrate technique. The dispersity of the BCZYYbO suspension in a mixed medium (isopropanol/acetylaceton...
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Article
Preparation and Properties of Stable Suspensions of ZrO2–Y2O3 Powders with Different Particle Sizes for Electrophoretic Deposition
This paper presents a study of nonaqueous suspensions based on ZrO2–8 mol % Y2O3 (8YSZ) powders and describes the use of the powders for producing thin-film coatings on a La2NiO4 (LNO) substrate by electrophoreti...
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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
Oxygen Mobility in the Materials for Solid Oxide Fuel Cells and Catalytic Membranes (Review)
Oxygen transport (including oxygen mobility and surface reactivity) is one of the important factors governing electrochemical activity of solid oxide fuel cells electrodes as well as oxygen and hydrogen separa...
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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
Electrical and Mechanical Properties of CeO2-Based Thin-Film Coatings Obtained by Electrophoretic Deposition
Nanometer Ce0.8(Sm0.75Sr0.20Ba0.05)0.2O2 – δ powder with mean nanoparticle size of 15 nm has been obtained by laser evaporation of a solid-phase target followed by condensation. The nanopowder has been used to pr...
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Article
Formation of Bilayer Thin-Film Electrolyte on Cathode Substrate by Electrophoretic Deposition
Potentialities of the method of bilayer thin-film electrolyte electrophoretic deposition onto cathodic substrate are analyzed. Ce0.8Sm0.2O1.9–δ (SDC) nanopowder and BaCe0.89Gd0.1Cu0.01O3–δ BCGCuO) micropowder are...
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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
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
Transport features in layered nickelates: correlation between structure, oxygen diffusion, electrical and electrochemical properties
Oxygen migration is increasingly acknowledged as playing an important role in the ionic transport in mixed conductors and influencing the electrode electrochemical performance. The aim of this work was to esta...
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Article
Specifics of the Electrical Properties of Composite Solid Oxide Membranes Based on SrTi0.5Fe0.5O3–δ
The electrical properties of dual-phase fluorite-pervoskite oxide systems based on strontium titanate- ferrite (SrTi0.5Fe0.5O3–δ) are studied. We find that the oxygen ionic and ambipolar conductivities of stronti...
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Chapter
Development of the Cathode Materials for Intermediate-Temperature SOFCs Based on Proton-Conducting Electrolytes
High-temperature proton-conducting oxide materials are of great fundamental interest due to the phenomenon of proton conductivity which appears with oxygen-ionic conductivity in a humidified atmosphere and is ...
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Chapter
Structural and Electrical Properties of Composites Based on Ni and NiAl Alloys for SOFC Application
Ni and NiAl alloys were utilized as the components of the composites on the base of Zr0.81Y0.19O2-δ and Al2O3 ceramic powders. The synthesis of composites was performed directly from the mechanical mixtures of me...
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Article
Preparation of thin bilayer coatings based on lanthanum, nickel, and cerium mixed oxides by electrophoretic deposition
This paper examines the feasibility of using electrophoretic deposition for producing thin films of cathode materials based on lanthanum nickel oxides (with the lanthanum nickelate La2NiO4 + δ (LNO) as the predom...
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Article
Gd-doped SrTi0.5Fe0.5O3–δ mixed ionic-electronic conductors: structural, thermal, and electrical properties
The effect of Sr by Gd substitution on the structural, thermomechanical, electrical, and electrochemical properties of SrTi0.5Fe0.5O3–δ was investigated in the present work. The powders were synthesized by a soli...
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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...
