La-Based Material for Energy Storage Applications


ATALAY F. , KAYA H. , BINGOL A., ASMA D.

ACTA PHYSICA POLONICA A, cilt.131, ss.453-456, 2017 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 131 Konu: 3
  • Basım Tarihi: 2017
  • Doi Numarası: 10.12693/aphyspola.131.453
  • Dergi Adı: ACTA PHYSICA POLONICA A
  • Sayfa Sayıları: ss.453-456

Özet

In this work, nanostructured La-based materials were produced by chemical precipitation method onto Cladosporium cladosporioides fungal hyphae in aqueous solution. Materials were annealed at various temperatures between 100 degrees C-600 degrees C. The morphological properties of the synthesized material were studied by transmission electron microscopy. The surface area for sample annealed at 360 degrees C was determined to be 85.64 m(2)/g using Brunauer-Emmett-Teller method. The nitrogen adsorption and desorption isotherm displayed a typical type-IV isotherm. Electrochemical properties of produced material were studied using cyclic voltammetry, long term charge/discharge analysis and impedance spectroscopy in the 0.5 M Na2SO4 electrolyte. The obtained nanostructured porous electrode exhibits quasi-rectangular shaped cyclic voltammetry curves with a specific capacitance of 2190 F/g at a scan rate of 2 mV/s.