Rb5H7(PO4)4 as a New Example of the Superprotonic Conductor Научная публикация
| Журнал |
Ionics
ISSN: 0947-7047 , E-ISSN: 1862-0760 |
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| Вых. Данные | Год: 2019, Том: 25, Номер: 2, Страницы: 551-557 Страниц : 7 DOI: 10.1007/s11581-018-2833-7 | ||||
| Ключевые слова | Ac-impedance spectroscopy; Proton conductivity; Rb 5 H 7 (PO 4 ) 4; Superprotonic conductors; Thermal analysis | ||||
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Реферат:
Thermal and transport properties, as well as spectral characteristics of Rb5H7(PO4)4, have been investigated by several methods. It was shown that Rb5H7(PO4)4 undergoes a reversible phase transition at Tp ~ 237 °С. However, the interval of the high-temperature phase stability is quite narrow, about 15 °С. The initial dehydration event in Rb5H7(PO4)4 occurs at 200 °С. The conductivity measurements were performed under highly humidified conditions (PH2O ≈ 0.56 atm.) to suppress dehydration of the title salt. The phase transition leads to the sharp increase of proton conductivity up to 10−2 S/cm. The reverse transition goes slowly with significant hysteresis on cooling. Thus, the superprotonic conductivity of Rb5H7(PO4)4 was determined. The possibility of superionic phase stabilization by humidification was shown. The IR- and Raman spectra have been recorded at room temperature and discussed in relation to the crystal structure.
Библиографическая ссылка:
Gaydamaka A.A.
, Ponomareva V.G.
, Bagryantseva I.N.
Rb5H7(PO4)4 as a New Example of the Superprotonic Conductor
Ionics. 2019. V.25. N2. P.551-557. DOI: 10.1007/s11581-018-2833-7 WOS Scopus РИНЦ CAPlus OpenAlex
Rb5H7(PO4)4 as a New Example of the Superprotonic Conductor
Ionics. 2019. V.25. N2. P.551-557. DOI: 10.1007/s11581-018-2833-7 WOS Scopus РИНЦ CAPlus OpenAlex
Даты:
| Поступила в редакцию: | 17 нояб. 2018 г. |
| Принята к публикации: | 6 дек. 2018 г. |
| Опубликована online: | 18 дек. 2018 г. |
| Опубликована в печати: | 1 февр. 2019 г. |
Идентификаторы БД:
| Web of science: | WOS:000457774500018 |
| Scopus: | 2-s2.0-85058849130 |
| РИНЦ: | 38641547 |
| Chemical Abstracts: | 2018:2551469 |
| OpenAlex: | W2905025753 |