Year: 2025 | Month: May | Volume: 12 | Issue: 5 | Pages: 607-616
DOI: https://doi.org/10.52403/ijrr.20250563
A Study on the Synthesis, Characterisation, and Pseudocapacitive Behaviour of Fe2O3 Nanomaterials
Sagar Kute1, Munish Pandey2, Manohar Zate3
1,2Department of Physics, K. M. Agrawal College, Padhaga Road, Gandhari Goan, Kalyan (W), Maharashtra, India 421301
3Department of Physics, SVKT Arts, Commerce & Science College, Deolali Camp, Nashik, Maharashtra, India 422401
Corresponding Author: Sagar Kute and Munish Pandey
ABSTRACT
In this work, we studied the synthesis, characterization, and pseudocapacitive performance of Fe2O3 nanomaterials produced using a simple co-precipitation method. The as-synthesized nanomaterials were characterized in detail for their structural, morphological, and compositional properties. Conclusively, based on UV-Vis analysis, characteristic optical absorption at ∼293.29 nm was confirmed for Fe2O3. FTIR investigation revealed the presence of specific Fe–O vibration modes corresponding to the iron oxide phase, as well as surface hydroxy groups. XRD patterns clearly recognized hematite (α-Fe2O3) to be the main crystalline phase, accompanied by a slight content of maghemite (γ-Fe2O3). Scanning Electron Microscopy (SEM) images revealed the particulate morphology of agglomerated submicron to nanoscale particles, confirming the high purity and stoichiometric Fe2O3 content using Energy Dispersive X-ray (EDX) spectroscopy. Cyclic voltammetry (CV) electrochemical investigation revealed a pronounced pseudocapacitive nature of the electrode, characterized by well-developed redox peaks due to the reversible Fe2+/Fe3+ transformation. Co-precipitated Fe2O3 nanomaterials exhibited a significant specific capacitance of value to 446.34 F/g at a scan rate of 5 mV/s, implying that the cost-effective Fe2O3 nanomaterials are a promising, abundant, and environmentally friendly electrode material for high-performance supercapacitor applications.
Keywords: Iron Oxide nanomaterials; polypyrrole (PPy); cyclic voltammetry; specific capacitance optimization
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