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http://elar.urfu.ru/handle/10995/112118
Название: | Materials AIILnInO4 with Ruddlesden-Popper Structure for Electrochemical Applications: Relationship between Ion (oxygen-ion, proton) Conductivity, Water Uptake, and Structural Changes |
Авторы: | Tarasova, N. Animitsa, I. |
Дата публикации: | 2022 |
Издатель: | MDPI MDPI AG |
Библиографическое описание: | Tarasova N. Materials AIILnInO4 with Ruddlesden-Popper Structure for Electrochemical Applications: Relationship between Ion (oxygen-ion, proton) Conductivity, Water Uptake, and Structural Changes / N. Tarasova, I. Animitsa // Materials. — 2022. — Vol. 15. — Iss. 1. — 114. |
Аннотация: | In this paper, the review of the new class of ionic conductors was made. For the last several years, the layered perovskites with Ruddlesden-Popper structure AIILnInO4 attracted attention from the point of view of possibility of the realization of ionic transport. The materials based on Ba(Sr)La(Nd)InO4 and the various doped compositions were investigated as oxygen-ion and proton conductors. It was found that doped and undoped layered perovskites BaNdInO4, SrLaInO4, and BaLaInO4 demonstrate mixed hole-ionic nature of conductivity in dry air. Acceptor and donor doping leads to a significant increase (up to ~1.5–2 orders of magnitude) of conductivity. One of the most conductive compositions BaNd0.9Ca0.1InO3.95 demonstrates the conductivity value of 5∙10−4 S/cm at 500 °C under dry air. The proton conductivity is realized under humid air at low (<500 °C) temperatures. The highest values of proton conductivity are attributed to the compositions BaNd0.9Ca0.1InO3.95 and Ba1.1La0.9InO3.95 (7.6∙10−6 and 3.2∙10−6 S/cm correspondingly at the 350 °C under wet air). The proton concentration is not correlated with the concentration of oxygen defects in the structure and it increases with an increase in the unit cell volume. The highest proton conductivity (with 95−98% of proton transport below 400 °C) for the materials based on BaLaInO4 was demonstrated by the compositions with dopant content no more that 0.1 mol. The layered perov-skites AIILnInO4 are novel and prospective class of functional materials which can be used in the different electrochemical devices in the near future. © 2021 by the authors. Licensee MDPI, Basel, Switzerland. |
Ключевые слова: | BALAINO4 LAYERED PEROVSKITE OXYGEN-ION CONDUCTIVITY PROTONIC CONDUCTIVITY RUDDLESDEN-POPPER STRUCTURE THE PROTON CONDUCTING SOLID OXIDE FUEL CELLS WATER UPTAKE BARIUM COMPOUNDS FUNCTIONAL MATERIALS IONS NEODYMIUM COMPOUNDS OXYGEN PEROVSKITE PROTON CONDUCTIVITY SOLID ELECTROLYTES SOLID OXIDE FUEL CELLS (SOFC) STRONTIUM COMPOUNDS STRUCTURE (COMPOSITION) DRY AIR ELECTROCHEMICAL APPLICATIONS LAYERED PEROVSKITE MATERIAL-BASED OXYGEN-ION CONDUCTIVITY PROTONIC CONDUCTIVITIES RUDDLESDEN-POPPER STRUCTURES THE PROTON CONDUCTING SOLID OXIDE FUEL CELL WATER UPTAKE LANTHANUM COMPOUNDS |
URI: | http://elar.urfu.ru/handle/10995/112118 |
Условия доступа: | info:eu-repo/semantics/openAccess |
Идентификатор РИНЦ: | 47547503 |
Идентификатор SCOPUS: | 85121707417 |
Идентификатор WOS: | 000751147100001 |
Идентификатор PURE: | 29209940 |
ISSN: | 1996-1944 |
DOI: | 10.3390/ma15010114 |
Сведения о поддержке: | This article was financially supported by the Ministry of Education and Science of the Russian Federation (state assignment no. 075-03-2021-051/5). |
Располагается в коллекциях: | Научные публикации ученых УрФУ, проиндексированные в SCOPUS и WoS CC |
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2-s2.0-85121707417.pdf | 4,99 MB | Adobe PDF | Просмотреть/Открыть |
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