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Tailoring the Structural, Thermal and Transport Properties of Pr2NiO4+δ Through Ca-Doping Strategy Научная публикация

Конференция European-Materials-Research-Society (EMRS) Spring Meeting / Sympsium A on Thin Film Chalcogenide Photovoltaic Materials
18-22 июн. 2018 , Strasbourg
Журнал Solid State Ionics
ISSN: 0167-2738
Вых. Данные Год: 2019, Том: 333, Страницы: 30-37 Страниц : 8 DOI: 10.1016/j.ssi.2019.01.014
Ключевые слова Pr2-xCaxNiO4; in situ synchrotron XRD; Thermal expansion coefficient; Ionic conductivity
Авторы Sadykov V.A. 1,2 , Pikalova E.Yu. 3,4 , Vinokurov Z.S. 1,2,5 , Shmakov A.N. 1,2,5 , Eremeev N.F. 1 , Sadovskaya E.M. 1,2 , Lyagaeva J.G. 3,4 , Medvedev D.A. 3,4 , Belyaev V.D. 1
Организации
1 Boreskov Institute of Catalysis SB RAS, 5 Akad. Lavrentieva av., Novosibirsk 630090, Russia
2 Novosibirsk State University, 2 Pirogova st., Novosibirsk 630090, Russia
3 Institute of High Temperature Electrochemistry UB RAS, 20 Akademicheskaya st., Yekaterinburg 620137, Russia
4 Ural Federal University, 19 Mira st., Yekaterinburg 620002, Russia
5 Budker Institute of Nuclear Physics SB RAS, pr. Akad. Lavrentieva 11, Novosibirsk 630090, Russia

Информация о финансировании (4)

1 Российский научный фонд 16-13-00112
2 Федеральное агентство научных организаций России 0303-2016-0013
3 Министерство образования и науки Российской Федерации 02.A03.21.0006
4 Российский фонд фундаментальных исследований 18-38-20063 (АААА-А18-118102390007-8)

Реферат: Materials with a layered Ruddlesden–Popper structure having high oxygen mobility are promising for SOFC cathodes and oxygen separation membranes. This work aims at studying structural and transport features of Pr2-xCaxNiO4+δ (x = 0–0.6) oxides synthesized by a modified co-precipitation method and sintered at 1250 °C. The samples were characterized by in situ XRD using synchrotron radiation, TGA, oxygen heteroexchange with C18O2 and dc four-probe method. The phase transitions Fmmm ↔ I4/mmm were observed for all samples caused both by the temperature increase and oxygen loss. The electronic conductivity increases with Ca doping, while ionic conductivity varies in a complex manner remaining rather high (~10−3–10−1 S/cm), thus ensuring high values of ambipolar conductivity attractive for the practical application. The best ambipolar conductivity values at high temperatures were demonstrated for the undoped sample as well as for those with a low (x = 0.1) or high (x = 0.3; 0.5) dopant content. The relationships between structural, thermomechanical and transport properties are discussed.
Библиографическая ссылка: Sadykov V.A. , Pikalova E.Y. , Vinokurov Z.S. , Shmakov A.N. , Eremeev N.F. , Sadovskaya E.M. , Lyagaeva J.G. , Medvedev D.A. , Belyaev V.D.
Tailoring the Structural, Thermal and Transport Properties of Pr2NiO4+δ Through Ca-Doping Strategy
Solid State Ionics. 2019. V.333. P.30-37. DOI: 10.1016/j.ssi.2019.01.014 WOS Scopus РИНЦ CAPlus OpenAlex
Даты:
Поступила в редакцию: 14 июл. 2018 г.
Принята к публикации: 10 янв. 2019 г.
Опубликована online: 22 янв. 2019 г.
Опубликована в печати: 1 мая 2019 г.
Идентификаторы БД:
Web of science: WOS:000464300700005
Scopus: 2-s2.0-85060218494
РИНЦ: 38681436
Chemical Abstracts: 2019:174565
OpenAlex: W2914255830
Цитирование в БД:
БД Цитирований
Scopus 16
Web of science 16
РИНЦ 16
OpenAlex 16
Альметрики: