Enhanced Performance of WO₃/SnO₂ Nanocomposite Electrodes with Redox-Active Electrolytes for Supercapacitors.

ABSTRACT: For effective supercapacitors, we developed a process involving chemical bath deposition, followed by electrochemical deposition and calcination, to produce WO₃/SnO₂ nanocomposite electrodes. In aqueous solutions, the hexagonal WO₃ microspheres were first chemically deposited on a carbon cloth, and then tin oxides were uniformly electrodeposited. The synthesized WO₃/SnO₂ nanocomposite was characterized by XRD, XPS, SEM, and EDX techniques. Electrochemical properties of the WO₃/SnO₂ nanocomposite were analyzed by cyclic voltammetry, galvanostatic charge-discharge tests, and electrochemical impedance spectroscopy in an aqueous solution of Na₂SO₄ with/without the redox-active electrolyte K₃

SUBMITTER: Morka TD 

PROVIDER: S-EPMC10094020 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature