Structural, Morphological, and Electrochemical Analysis of Electrodeposited Iron Oxide Electrodes
Abstract
The present work depicts the preparation and electrochemical study of hematite (Fe2O3) electrodes by cathodic electrodeposition. The synthesis has been carried out at deposition potential 2.3V using the potentiodynamic cathodic electrodeposition for 30 min on stainless-steel (SS) strips. 20 ml of 0.1 M aqueous solution of FeSO4 has been taken as source material. XRD patterns of the prepared flexible electrodes (FE) approve the formation of hematite. Further, the value of contact angle 10.50 indicates the greater hydrophilic nature of the material, which is appropriate to the aqueous electrolyte. The interconnected nanoflakes provide a high surface area which is essential for high-charge storage. The cyclic voltammetric (CV) analysis shows a quasi-irreversible performance of the electrodes. Galvanostatic charge-discharge (GCD) analysis was carried out using chronopotentiometry (CP). The detected supreme specific capacitance (SC) was 2085.20 Fg-1.