Physicochemical properties of (CH3)2NH2Cl–Al2O3 composites

A. S. Ulikhin, N. F. Uvarov, K. B. Gerasimov, A. A. Iskakova, Yu G. Mateishina

Результат исследования: Научные публикации в периодических изданияхстатья

Аннотация

Composite solid electrolytes were synthesized from the organic salt dimethylammonium chloride (1–x)C2H8NCl–xAl2O3. Their physicochemical properties were studied. In the starting C2H8NCl salt, there is a phase transition at 39°C accompanied by an increase in conductivity by two orders of magnitude. The conductivity of the high-temperature phase is 9.3 × 10–6 S/cm at 160°C. A differential scanning calorimetry study showed that the salt in the composites spreads over the oxide surface and at x > 0.6 the salt melting enthalpy decreases to zero. The conductivity of the resulting composites was studied by impedance spectroscopy. It was shown that heterogeneous doping leads to a sharp increase in ion conductivity to 7.0 × 10–3 S/cm at 160°C and a decrease in the activation energy to 0.55 eV.

Язык оригиналаанглийский
Страницы (с-по)834-837
Число страниц4
ЖурналRussian Journal of Electrochemistry
Том53
Номер выпуска8
DOI
СостояниеОпубликовано - 1 авг 2017

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