проводимость

The new materials obtained in the potassium polytitanate (PPT)–MnSO₄ system by modifying PPT in aqueous solutions of manganese sulfate of various concentrations, followed by thermal treatment and annealing at 1080°C, were synthesized and studied. The phase composition of the obtained materials was determined. Their electrochemical and electrophysical properties in the temperature range from 250 to 700°C were studied.

In this paper, the electrochemical and electrophysical properties of protonated potassium polytitanate synthesized at pH values varying from 3.11 to 8.88 depending on the magnitude of the polarization voltage and the magnitude of the measured signal were studied by the method of impedance spectroscopy. The values of effective conductivity, relaxation times, frequency dependences of the loss tangent, and dielectric permittivity are determined.

The paper considers the electrochemical properties of potassium polytitanate synthesized at the values of pH varying from 3 to 8 in a wide temperature range from  − 26 to  + 80°C. The conductivity values and the activation energy were determined with the help of the method of impedance spectroscopy. The application of the obtained material used as a ceramic solid electrolyte in the energy storage units operating at low temperatures in the Far North is considered in the article.

The influence of the pH value in the dispersions during washing the potassium polytitanate powder (PPT) after its molten salt synthesis on electrical properties of the obtained product, namely conductivity, permittivity and tangent of dielectric losses. It is established that the samples obtained in weakly alkaline conditions (pH = 7.44 and 8.50), are characterized by higher values of low-frequency conductivity and dielectric permittivity (up to 10^{5), low value of the relaxation time (0.112 and 0.358, respectively).

Cite measuring result spectrum impedance of poly crystalline samples Mg-rcplacc lithium-iron spinel structure Li0 5l;c24Mg01O4 in the frequency range И>2 105 Hz in temperature range 295 723K. Displayed, that conduct temperature dependence real part of dielectric conductivity from temperature affirm about process activation electron transition between ions of iron varied valence and accompany reorientation dipole in variable field.
At high temperatures (T> 573K) make apparent dominating contribution of electro conductivity on direct current. Activation energy of conductivity in low (295 473K) and high (473 723K) temperatures region put accordingly 0.3 and 0.4 eV. Distinction value activation energy grows with increase frequencies and form on a frequency./ 105 Hz -55%. Такса research components complex electrical module of dielectric polarization, enabling division electronic and ionic part of conductivity.

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The new composite material on the basis of polytitanates of potassium and the ionic conductor of iodide of silver with extremely high dielectric permeability is synthesized. Impedance and dielectric characteristics of the received material are investigated.

Properties of Dye Solar Cells with quasi solid electrolytes based on PEG have been investigated. The attempts to enhance the electrolyte conductivity was made with Li electrolyte introduction.