Recent Progress in the Design, Characterisation and Application of LaAlO<sub>3</sub>- and LaGaO<sub>3</sub>-Based Solid Oxide Fuel Cell Electrolytes

Solid oxide fuel cells (SOFCs) are efficient electrochemical devices that allow for the direct conversion of fuels (their chemical energy) into electricity. Although conventional SOFCs based on YSZ electrolytes are widely used from laboratory to commercial scales, the development of alternative ion-...

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Main Authors: Elena Filonova, Dmitry Medvedev
Format: Article
Language:English
Published: MDPI AG 2022-06-01
Series:Nanomaterials
Subjects:
Online Access:https://www.mdpi.com/2079-4991/12/12/1991
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author Elena Filonova
Dmitry Medvedev
author_facet Elena Filonova
Dmitry Medvedev
author_sort Elena Filonova
collection DOAJ
description Solid oxide fuel cells (SOFCs) are efficient electrochemical devices that allow for the direct conversion of fuels (their chemical energy) into electricity. Although conventional SOFCs based on YSZ electrolytes are widely used from laboratory to commercial scales, the development of alternative ion-conducting electrolytes is of great importance for improving SOFC performance at reduced operation temperatures. The review summarizes the basic information on two representative families of oxygen-conducting electrolytes: doped lanthanum aluminates (LaAlO<sub>3</sub>) and lanthanum gallates (LaGaO<sub>3</sub>). Their preparation features, chemical stability, thermal behaviour and transport properties are thoroughly analyzed in terms of their connection with the target functional parameters of related SOFCs. The data presented here will serve as a starting point for further studies of La-based perovskites, including in the fields of solid state ionics, electrochemistry and applied energy.
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spelling doaj.art-70ead45c23154a0a83a74c9198426d112023-11-23T18:15:42ZengMDPI AGNanomaterials2079-49912022-06-011212199110.3390/nano12121991Recent Progress in the Design, Characterisation and Application of LaAlO<sub>3</sub>- and LaGaO<sub>3</sub>-Based Solid Oxide Fuel Cell ElectrolytesElena Filonova0Dmitry Medvedev1Department of Physical and Inorganic Chemistry, Institute of Natural Sciences and Mathematics, Ural Federal University, 620002 Ekaterinburg, RussiaLaboratory of Electrochemical Devices Based on Solid Oxide Proton Electrolytes, Institute of High Temperature Electrochemistry, 620660 Ekaterinburg, RussiaSolid oxide fuel cells (SOFCs) are efficient electrochemical devices that allow for the direct conversion of fuels (their chemical energy) into electricity. Although conventional SOFCs based on YSZ electrolytes are widely used from laboratory to commercial scales, the development of alternative ion-conducting electrolytes is of great importance for improving SOFC performance at reduced operation temperatures. The review summarizes the basic information on two representative families of oxygen-conducting electrolytes: doped lanthanum aluminates (LaAlO<sub>3</sub>) and lanthanum gallates (LaGaO<sub>3</sub>). Their preparation features, chemical stability, thermal behaviour and transport properties are thoroughly analyzed in terms of their connection with the target functional parameters of related SOFCs. The data presented here will serve as a starting point for further studies of La-based perovskites, including in the fields of solid state ionics, electrochemistry and applied energy.https://www.mdpi.com/2079-4991/12/12/1991SOFCssolid oxide fuel cellsoxygen-ion electrolytesperovskiteLaAlO<sub>3</sub>LaGaO<sub>3</sub>
spellingShingle Elena Filonova
Dmitry Medvedev
Recent Progress in the Design, Characterisation and Application of LaAlO<sub>3</sub>- and LaGaO<sub>3</sub>-Based Solid Oxide Fuel Cell Electrolytes
Nanomaterials
SOFCs
solid oxide fuel cells
oxygen-ion electrolytes
perovskite
LaAlO<sub>3</sub>
LaGaO<sub>3</sub>
title Recent Progress in the Design, Characterisation and Application of LaAlO<sub>3</sub>- and LaGaO<sub>3</sub>-Based Solid Oxide Fuel Cell Electrolytes
title_full Recent Progress in the Design, Characterisation and Application of LaAlO<sub>3</sub>- and LaGaO<sub>3</sub>-Based Solid Oxide Fuel Cell Electrolytes
title_fullStr Recent Progress in the Design, Characterisation and Application of LaAlO<sub>3</sub>- and LaGaO<sub>3</sub>-Based Solid Oxide Fuel Cell Electrolytes
title_full_unstemmed Recent Progress in the Design, Characterisation and Application of LaAlO<sub>3</sub>- and LaGaO<sub>3</sub>-Based Solid Oxide Fuel Cell Electrolytes
title_short Recent Progress in the Design, Characterisation and Application of LaAlO<sub>3</sub>- and LaGaO<sub>3</sub>-Based Solid Oxide Fuel Cell Electrolytes
title_sort recent progress in the design characterisation and application of laalo sub 3 sub and lagao sub 3 sub based solid oxide fuel cell electrolytes
topic SOFCs
solid oxide fuel cells
oxygen-ion electrolytes
perovskite
LaAlO<sub>3</sub>
LaGaO<sub>3</sub>
url https://www.mdpi.com/2079-4991/12/12/1991
work_keys_str_mv AT elenafilonova recentprogressinthedesigncharacterisationandapplicationoflaalosub3subandlagaosub3subbasedsolidoxidefuelcellelectrolytes
AT dmitrymedvedev recentprogressinthedesigncharacterisationandapplicationoflaalosub3subandlagaosub3subbasedsolidoxidefuelcellelectrolytes