@article{Yaremiy_Mokhnatskyi_Kolkovskyi_Mokhnatska_Yaremiy_Kachmar_Cherkach_2020, title={Promising Cathode Material for Supercapacitors LaFe0.5Cr0.5O3 Perovskite Nanoparticles: Array}, volume={21}, url={https://journals.pnu.edu.ua/index.php/pcss/article/view/4434}, DOI={10.15330/pcss.21.4.635-639}, abstractNote={<p>In this work, the Perovskite powders LaFe<sub>0.5</sub>Cr<sub>0.5</sub>O<sub>3</sub> with a space group of P m - 3 m was obtained by the sol-gel method. The nanoscale powders of LaFe<sub>0.5</sub>Cr<sub>0.5</sub>O<sub>3 </sub>have been tested as a cathode material for electrochemical supercapacitors. The CVA and charge-discharge curves were obtained at 0.5 mV/s to 16 mV/s and 0.5 mA/s to 16 mA/s scan rates accordingly. It is established that the cathode material LaFe<sub>0.5</sub>Cr<sub>0.5</sub>O<sub>3</sub> demonstrates the specific capacity up to 16 F/g at a discharge scan rate 0.5 mV/s. Additionally, the maximum of the specific capacity was calculated and it is determined that C is 29.26 F/g, and the specific capacity of double electric layer C<sub>DEL</sub> is 3.44 F/g. It was determined that the contribution of the redox reactions in specific capacity is 88 %. The Nyquist plots and Mott-Schottky plots for LaFe<sub>0.5</sub>Cr<sub>0.5</sub>O<sub>3</sub> were obtained. They consist of two parts that correspond to a different type of conductivity. Thus, it is established that LaFe<sub>0.5</sub>Cr<sub>0.5</sub>O<sub>3</sub> shows different types of conductivity depending on the applied potential. The received values of flat band potential are -1.00 V and 0.16 V for <em>n-type</em> and <em>p-type</em> of conductivity accordingly.</p>}, number={4}, journal={Physics and Chemistry of Solid State}, author={Yaremiy, I.P. and Mokhnatskyi, M.L. and Kolkovskyi, P.I. and Mokhnatska, L.V. and Yaremiy, S.I. and Kachmar, A.I. and Cherkach, Kh.P.}, year={2020}, month={Dec.}, pages={635–639} }