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Features of proton transport in composite electrolytes based on acid ammonium salt of 12-phosphotungstic acid and calixareneстатья Исследовательская статья
Информация о цитировании статьи получена из
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 25 мая 2022 г.
- Авторы: Shmygleva L.V., Leonova L.S., Kayumov R.R., Shilov G.V.
- Журнал: Solid State Ionics
- Том: 377
- Год издания: 2022
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Первая страница: 115887
- DOI: 10.1016/j.ssi.2022.115887
- Аннотация: The physicochemical properties of composite solid electrolytes based on acid ammonium salt of 12-phosphotungstic acid and calixarene sulfonic acid with uniform distribution were investigated. The proton conductivity was determined by the content and conductivity of calixarene and has the form of a saturation curve with reaching its maximum (0.1 S/cm at 20 °C and 75% RH) at a mole fraction of calixarene of 0.4. It was found that the water content and the activation energy of conduction nonmonotonically depend on the calixarene content with an extremum at the same calixarene content of ~0.4 (0.13 eV at 75% RH). The samples with a composition close to optimal do not experience phase transitions in wide range of temperature (from +60 to -60 °C). The observed behavior was explained on the basis of the results obtained with the help of differential scanning calorimetry, gravimetry, X-ray diffraction, scanning electron microscopy and impedance spectroscopy.
- Добавил в систему: Шмыглева Любовь Вячеславовна