Open AccessEffect of Reaction Time on the Morphology of CuO Nanostructured Electrode for Pseudocapacitor Application
Author(s) -
Salvacion B. Orgen,
Mary Donnabelle L. Balela
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1974/1/012006
Subject(s) - pseudocapacitor , electrode , cyclic voltammetry , materials science , electrolyte , electrochemistry , horizontal scan rate , nanostructure , chemical engineering , nanotechnology , capacitance , supercapacitor , chemistry , engineering
CuO nanostructured electrodes were successfully synthesized via a chemical bath deposition at room temperature for pseudocapacitor application. Changing the reaction time leads to the formation of different morphological nanostructures such as uniformed nanoneedles, nanotubes, nanosheets, and microflowers during oxidation. The electrodes were electrochemically characterized via cyclic voltammetry and galvanostatic charge-discharge using 6 M KOH electrolyte at different scan rates of 2-50 mV/s and current densities of 2-5 mA/cm2, respectively. The electrodes exhibited good electrochemical performance with specific capacitance ranging from 88-231 mF/cm2 at 2 mV/s.