Physicochemical properties of (CH3)2NH2Cl–Al2O3 composites
- Authors: Ulikhin A.S.1, Uvarov N.F.1,2,3, Gerasimov K.B.1, Iskakova A.A.1, Mateishina Y.G.2,3
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Affiliations:
- Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch
- Novosibirsk State Technical University
- Novosibirsk State University
- Issue: Vol 53, No 8 (2017)
- Pages: 834-837
- Section: Article
- URL: https://journals.rcsi.science/1023-1935/article/view/188963
- DOI: https://doi.org/10.1134/S1023193517080158
- ID: 188963
Cite item
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.
About the authors
A. S. Ulikhin
Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch
Author for correspondence.
Email: a.ulihin@gmail.com
Russian Federation, Novosibirsk, 630128
N. F. Uvarov
Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch; Novosibirsk State Technical University; Novosibirsk State University
Email: a.ulihin@gmail.com
Russian Federation, Novosibirsk, 630128; Novosibirsk, 630073; Novosibirsk, 630090
K. B. Gerasimov
Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch
Email: a.ulihin@gmail.com
Russian Federation, Novosibirsk, 630128
A. A. Iskakova
Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch
Email: a.ulihin@gmail.com
Russian Federation, Novosibirsk, 630128
Yu. G. Mateishina
Novosibirsk State Technical University; Novosibirsk State University
Email: a.ulihin@gmail.com
Russian Federation, Novosibirsk, 630073; Novosibirsk, 630090