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Phase Composition, Thermal and Transport Properties of the System Based on the Mono- and Dihydrogen Phosphates of Rubidium Научная публикация

Конференция 13th International Symposium on Systems with Fast Ionic Transport
03-07 июл. 2018 , Минск
Журнал Solid State Ionics
ISSN: 0167-2738
Вых. Данные Год: 2019, Том: 329, Страницы: 124-130 Страниц : 7 DOI: 10.1016/j.ssi.2018.12.005
Ключевые слова A60; ac-impedance spectroscopy; Dihydrophosphate of rubidium; Hydrophosphate of rubidium dihydrate; IR-spectroscopy; Proton conductivity
Авторы Gaydamaka Anna A. 1,2 , Ponomareva Valentina G. 1,2 , Bagryantseva Irina N. 1,2
Организации
1 Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch of the Russian Academy of Sciences, 630128 Novosibirsk, Russia
2 Novosibirsk State University, 630090 Novosibirsk, Russia

Реферат: Phase composition and phase transitions, spectral characteristics, thermal and transport properties of the (1-x)RbH2PO4 – xRb2HPO4 · yH2O system at the wide range of х = 0–1 were investigated. No solid solutions were observed at the system. A monophasic region at х = 0.25 with the compound Rb5H7(PO4)4 was found. The thermodynamic and transport properties of Rb5H7(PO4)4 were studied in detail. The other compositions correspond to diphasic mixtures of two salts: RbH2PO4 and Rb5H7(PO4)4 (х = 0–0.2), or Rb2HPO4·yH2O and Rb5H7(PO4)4 (at х higher 0.25). The sharp increase of proton conductivity up to 3·10−2 S/cm under highly humidified conditions was found for х = 0.1–0.25 at temperatures >240 °С can be associated with the superionic phase transitions of RbH2PO4 and Rb5H7(PO4)4. A weak composite effect with a slight increase of conductivity (about one order of magnitude) at low temperatures compared to those for the pure salts RbH2PO4 and Rb2HPO4·2H2O was shown for all samples.
Библиографическая ссылка: Gaydamaka A.A. , Ponomareva V.G. , Bagryantseva I.N.
Phase Composition, Thermal and Transport Properties of the System Based on the Mono- and Dihydrogen Phosphates of Rubidium
Solid State Ionics. 2019. V.329. P.124-130. DOI: 10.1016/j.ssi.2018.12.005 WOS Scopus РИНЦ CAPlus OpenAlex
Даты:
Поступила в редакцию: 31 авг. 2018 г.
Принята к публикации: 4 дек. 2018 г.
Опубликована online: 7 дек. 2018 г.
Опубликована в печати: 1 янв. 2019 г.
Идентификаторы БД:
Web of science: WOS:000456224500017
Scopus: 2-s2.0-85057726903
РИНЦ: 38627159
Chemical Abstracts: 2018:2472418
OpenAlex: W2905541078
Цитирование в БД:
БД Цитирований
Web of science 14
Scopus 13
OpenAlex 13
Альметрики: