Synthesis and electrochemical properties of LaMnO3 orthosized nanomaterial for supercapacitor applications

  • B. K. Ostafiychuk Vasyl Stefanyk Precarpathian National University
  • H. M. Kolkovska Vasyl Stefanyk Precarpathian National University
  • I. P. Yaremiy Vasyl Stefanyk Precarpathian National University
  • B. I. Rachiy Vasyl Stefanyk Precarpathian National University
  • P. I. Kolkovskyi Vasyl Stefanyk Precarpathian National University
  • N. Ya. Ivanichok Vasyl Stefanyk Precarpathian National University
  • S. I. Yaremiy Ivano-Frankivsk National Medical University
Keywords: sol-gel process, perovskite structure, KOH electrolyte, specific capacity

Abstract

In this work, the perovskite LaMnO3 material has been prepared based on the sol-gel process of synthesis with the participation of combustion. According to the X-ray phase analysis, it was determined that the obtained material consists of LaMnO3 one phase (space group Pm-3m). Nevertheless, it has been determined that the average size of the coherent scattering region of the obtained material is about 24 nm. Moreover, the average particle size is 40-60 nm in case the approximation that the particles are spherical shape. Thus, it has been determined that the specific surface area of the material is 42.1 m2/g. The electrochemical investigations have been performed using nanosized LaMnO3 powder as a cathode material for electrochemical capacitors. The LaMnO3 material under research showed a specific capacity of 40 F/g at a discharge of up to 1V.

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Published
2020-06-15
How to Cite
OstafiychukB. K., KolkovskaH. M., YaremiyI. P., RachiyB. I., KolkovskyiP. I., IvanichokN. Y., & YaremiyS. I. (2020). Synthesis and electrochemical properties of LaMnO3 orthosized nanomaterial for supercapacitor applications. Physics and Chemistry of Solid State, 21(2), 219-226. https://doi.org/10.15330/pcss.21.2.219-226
Section
Scientific articles

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