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Structural and Transport Properties of Neodymium Tungstates Prepared via Mechanochemical Activation Научная публикация

Журнал Ceramics International
ISSN: 0272-8842
Вых. Данные Год: 2019, Том: 45, Номер: 7 (B), Страницы: 9529-9536 Страниц : 8 DOI: 10.1016/j.ceramint.2018.09.277
Ключевые слова tungstate, synthesis by mechanical activation, structure, proton transport
Авторы Bespalko Y. 1 , Eremeev N. 1,2 , Skryabin P. 1 , Krieger T. 1,2 , Chesalov Y. 1 , Lapina O. 1,2 , Khabibulin D. 1 , Ulihin A. 3 , Uvarov N. 2,3 , Sadykov V. 1,2
Организации
1 Boreskov Institute of Catalysis, Novosibirsk, Russia
2 Novosibirsk State University, Novosibirsk, Russia
3 Institute of Solid State Chemistry and Mechanochemistry, Novosibirsk, Russia

Информация о финансировании (2)

1 Российский научный фонд 16-13-00112
2 Федеральное агентство научных организаций России 0303-2016-0013

Реферат: Nd5.5WO11.25-δ, (Nd5/6La1/6)5.5WO11.25-δ and Nd5.5W0.5Mo0.5O11.25-δ mixed oxides have been prepared using mechanochemical activation (MA) of Nd2O3-WO3, Nd2O3-La2O3-WO3, Nd2O3-MoO3-WO3 mixtures in a high-power planetary ball mill. Genesis of these tungstates structural properties was studied by XRD, SEM, TEM with EDX analysis, 1H NMR, IR and Raman spectroscopy. X-ray diffraction has revealed that MA results in formation of a pure fluorite structure already after milling. High-density ceramic pellets have been obtained after sintering at 1350 °C. Transport properties of Nd5.5WO11.25-δ mixed oxide were improved by the partial substitution of Nd with La in (Nd5/6La1/6)5.5WO11.25-δ and W with Mo in Nd5.5W0.5Mo0.5O11.25-δ samples. For all samples the electrical conductivity values measured in a humid atmosphere (up to ~ 10-3 S/cm at 550 °C) exceed those measured in a dry atmosphere indicating the proton character of conductivity.
Библиографическая ссылка: Bespalko Y. , Eremeev N. , Skryabin P. , Krieger T. , Chesalov Y. , Lapina O. , Khabibulin D. , Ulihin A. , Uvarov N. , Sadykov V.
Structural and Transport Properties of Neodymium Tungstates Prepared via Mechanochemical Activation
Ceramics International. 2019. V.45. N7 (B). P.9529-9536. DOI: 10.1016/j.ceramint.2018.09.277 WOS Scopus РИНЦ CAPlus OpenAlex
Даты:
Поступила в редакцию: 29 июл. 2018 г.
Принята к публикации: 28 сент. 2018 г.
Опубликована online: 1 окт. 2018 г.
Опубликована в печати: 1 мая 2019 г.
Идентификаторы БД:
Web of science: WOS:000463688400030
Scopus: 2-s2.0-85054523703
РИНЦ: 38619371
Chemical Abstracts: 2018:1865322
OpenAlex: W2895715635
Цитирование в БД:
БД Цитирований
Scopus 7
Web of science 7
РИНЦ 8
OpenAlex 7
Альметрики: