Synthesis and characterization of RuO2 thick film supercapacitor electrode: the effect of low temperature


KARİPER İ. A., Tezel F. M.

BULLETIN OF MATERIALS SCIENCE, vol.44, no.4, 2021 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 44 Issue: 4
  • Publication Date: 2021
  • Doi Number: 10.1007/s12034-021-02573-5
  • Journal Name: BULLETIN OF MATERIALS SCIENCE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, Communication Abstracts, INSPEC, Metadex, Civil Engineering Abstracts
  • Keywords: Ruthenium oxide thick film, supercapacitor, bio-chemical bath deposition, low-temperature effect, enzymes, ELECTROCHEMICAL CAPACITANCE, RUTHENIUM DIOXIDE, NANOPARTICLES, COMPOSITE
  • Erciyes University Affiliated: Yes

Abstract

This study involves the preparation of ruthenium oxide (RuO2) thick films by a different method than those reported in the literature and the investigation of their dielectric properties. The substrates were coated with RuO2 thick films deposited using a mixture of invertase enzyme and ruthenium ions dissolved in water. Scanning electron microscopy-energy dispersive X-ray spectroscopy was employed for surface analysis of the films. Current/potential measurements were used to examine dielectric properties and X-ray diffraction to examine structural properties. The capacitance per unit mass of RuO2 thick films produced with invertase enzyme in amorphous structure was found to be 845 F g(-1). Regarding energy dispersive X-ray spectroscopy analysis, thick films were found to contain around 79.15% ruthenium, evenly distributed on the surface of the films. In addition, we performed capacitance measurements for different temperatures and got very interesting results.