Abstract
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.
Original language | English |
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Pages (from-to) | 834-837 |
Number of pages | 4 |
Journal | Russian Journal of Electrochemistry |
Volume | 53 |
Issue number | 8 |
DOIs | |
Publication status | Published - 1 Aug 2017 |
Keywords
- composite solid electrolytes
- dimethylammonium chloride
- ion conductivity
- THERMODYNAMIC PROPERTIES
- CONDUCTIVITY
- SOLID ELECTROLYTES