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Featured researches published by A.A. Kolchugin.


WIT Transactions on Ecology and the Environment | 2014

The Development Of Electrolytes ForIntermediate Temperature Solid Oxide Fuel Cells

E. Yu. Pikalova; V. G. Bamburov; I. V. Rukavishnikova; A. Demin; A.A. Kolchugin

This report describes a number of experimental studies on the solid state electrolytes for intermediate temperature solid oxide fuel cells (IT-SOFCs): Ce1–xLnxO2–δ (Ln = La, Nd, Sm, Eu, Gd, Dy, Ho, Er, Yb), some multicomponent systems Ce1-xLnx/2Ln x/2O2-δ (x = 0 – 0.20; Ln = Sm, La, Gd and Ln = Dy, Nd, Y), some systems with simultaneous doping by rare earth and alkali earth elements Ce0.8(Sm1-xMx)0.2O2-δ (M = Ca, Sr; x = 0.0 – 1.0) and Ce0.8(Sm1-x-yBayMx)0.2O2-δ (M = Ca, Sr; x = 0, 0.15, 0.20; y = 0.05, 0.1). Two important aspects are emphasized: the effect of different dopants’ ionic radius and concentration on the electrical properties of CeO2 based solid solutions and the influence of the method of preparation on the structural properties of ceria ceramics and the electrochemical performance of single SOFCs on their base. To describe the electrolytic properties of solid electrolytes the notation of the electrolytic domain boundary (EDB) – the critical oxygen partial pressure 2 ( ) O P  at which the values of the electronic and ionic components of conductivity are equal, were calculated and presented. The interpretation of these data will lead to a better understanding of, subsequent improvements to and ultimately, the commercialization of IT-SOFCs in Russia.


Advances in Science and Technology | 2014

Electrical and Electrochemical Properties of La2–xCaxNiO4+δ and La2–xCaxNiO4+δ–Ce0.8Sm0.2O1.9 Cathode Materials for Intermediate Temperature SOFCs

E. Pikalova; A.A. Kolchugin; N. M. Bogdanovich; Dimitry Igorevich Bronin

The present work focuses on the electrical properties of La2–xCaxNiO4+δ (x=0–0.4) and the electrochemical performance of the cathodes based on these materials with a LаNi0.6Fe0.4O3-δ current collector in contact with a Ce0.8Sm0.2O1.9 electrolyte. The effect of the sintering temperature on the polarization resistance of La1.7Ca0.3NiO4+δ–Ce0.8Sm0.2O1.9 composites of different content has been studied by an impedance spectroscopy method. The composite electrode 50 wt.% La1.7Ca0.3NiO4+δ – 50 wt.% Ce0.8Sm0.2O1.9 sintered at the temperature below 1300°C has showed the lowest polarization resistance value equal to 0.27 Ωcm2 and in case of PrOx infiltration 0.033 Ωcm2 at 800°C in air.


International Journal of Energy Production and Management | 2016

CERIA-BASED MATERIALS FOR HIGH-TEMPERATURE ELECTROCHEMISTRY APPLICATIONS

E. Yu. Pikalova; A.A. Kolchugin; V. G. Bamburov

This paper describes the experimental studies of multi-component solid state electrolytes based on CeO2 and their application in intermediate temperature electrochemical devices. Two important aspects are emphasized: the effect of different dopants’ ionic radius and concentration on the electrical properties of CeO2-based solid solutions in air and the influence of combined dopants on the electrolytic properties of solid electrolytes from the standpoint of the critical oxygen partial pressure pO2 at which point the values of the electronic and ionic components of conductivity are equal. Examples of usage of the developed multi-component Ce0.8(Sm0.75Sr0.2Ba0.05)0.2O2-δ electrolyte synthesized by solid state, laser evaporation and combustion methods and composites on the base of Ce0.8(Sm0.8Sr0.2)0.2O2−δ electrolyte as a component of electrochemical devices such as solid oxide fuel cell, gas sensors and as a component of the mixed ionic and electronic conducting (MIEC) membranes for hydrogen and syngas gas production are cited.


Procedia Engineering | 2014

Electrical and Electrochemical Properties of La2NiO4+δ-Based Cathodes in Contact with Ce0.8Sm0.2O2-δ Electrolyte☆

E.Yu. Pikalova; N. M. Bogdanovich; A.A. Kolchugin; D. A. Osinkin; D.I. Bronin


Solid State Ionics | 2017

Development of electrochemically active electrodes for BaCe0.89Gd0.1Cu0.01O3 − δ proton conducting electrolyte

E.P. Antonova; A.A. Kolchugin; E.Yu. Pikalova; D. Medvedev; N. M. Bogdanovich


Solid State Ionics | 2016

Influence of the synthesis method on the electrochemical properties of bilayer electrodes based on La2NiO4 + δ and LaNi0.6Fe0.4O3 − δ

E.Yu. Pikalova; N. M. Bogdanovich; A.A. Kolchugin; M.V. Ananyev; A. A. Pankratov


Ionics | 2018

Transport features in layered nickelates: correlation between structure, oxygen diffusion, electrical and electrochemical properties

V. A. Sadykov; E.M. Sadovskaya; E.Yu. Pikalova; A.A. Kolchugin; E.A. Filonova; S.M. Pikalov; Nikita F. Eremeev; Arcady V. Ishchenko; A. I. Lukashevich; J. M. Bassat


Solid State Ionics | 2018

Oxygen transport properties of Ca-doped Pr2NiO4

V. A. Sadykov; E.Yu. Pikalova; A.A. Kolchugin; E.A. Filonova; E.M. Sadovskaya; Nikita F. Eremeev; Arcady V. Ishchenko; A.V. Fetisov; S.M. Pikalov


ECS Conference on Electrochemical Energy Conversion & Storage with SOFC-XIV (July 26-31, 2015) | 2015

Effect of Nature of the Ceramic Component of the Composite Electrodes Based on La1.7Ca(Sr)0.3NiO4+δ on Their Electrochemical Performance

E. Pikalova; N. M. Bogdanovich; A.A. Kolchugin; A. Brouzgou; D. Bronin; Sergey Vladimirovich Plaksin; A. Khasanov; P. Tsiakaras


Solid State Ionics | 2017

Cyclic electrophoretic deposition of electrolyte thin-films on the porous cathode substrate utilizing stable suspensions of nanopowders

E.G. Kalinina; E.Yu. Pikalova; A.A. Kolchugin; S.M. Pikalov; A.S. Kaigorodov

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N. M. Bogdanovich

Russian Academy of Sciences

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E. Pikalova

Ural Federal University

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S.M. Pikalov

Ural Federal University

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E.M. Sadovskaya

Novosibirsk State University

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V. A. Sadykov

Novosibirsk State University

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Arcady V. Ishchenko

Novosibirsk State University

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D. Medvedev

Ural Federal University

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M.V. Ananyev

Ural Federal University

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