Electrodeposited spruce leaf-like structured copper bismuth oxide electrode for supercapacitor application

Ahmed AL-Osta*, Bushra Saleh Samer, Umesh T. Nakate, Vijaykumar V. Jadhav, Rajaram S. Mane

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Novel spruce leaf-like copper bismuth oxide (CuBi2O4) microstructured films have been deposited on stainless steel (SS) substrate by using a simple and cost-effective electrodeposition chemical route. The morphology of CuBi2O4 was studied using field emission scanning electron microscopy (FESEM) whereas X-ray diffraction (XRD) spectra recorded for phase confirmation. The spruce leaf-like architecture composed of nanoparticles was evidenced for the obtained CuBi2O4 material. The supercapacitor performance for prepared CuBi2O4 electrode calcined at 200, 300, 400, 500 °C temperatures were investigated. The cyclic-voltammetry and charge-discharge studies were carried out at different scan rates and current densities respectively. The highest specific capacitance 484 F/g was noted for CuBi2O4 electrode calcined at 500 °C at 10 mV/ s scan rate via cyclic-voltammetry analysis in 1 M NaOH electrolyte. The specific capacitance of 540.9 F/g was estimated from charge-discharge analysis at 10 mA/cm2 current density. The energy density of 146.8 Wh/Kg and power density 1555.5 W/Kg for optimized CuBi2O4 electrode at 10 mA/cm2 current density. The electrochemical impedance spectroscopy studies were also performed. The nanostructured CuBi2O4 material has exhibited supercapacitive properties for energy storage applications.

Original languageEnglish
Article number111359
JournalMicroelectronic Engineering
Volume229
DOIs
StatePublished - 15 May 2020
Externally publishedYes

Keywords

  • Calcination effect
  • Charge transport kinetics
  • Copper bismuth oxide
  • Electrochemical measurements
  • Specific capacitance
  • Spruce leaf-like nanostructure

Fingerprint

Dive into the research topics of 'Electrodeposited spruce leaf-like structured copper bismuth oxide electrode for supercapacitor application'. Together they form a unique fingerprint.

Cite this