Authors : Sonali S. Sirsat

Volume/Issue : Volume 11 - 2026, Issue 2 - February

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DOI : https://doi.org/10.38124/ijisrt/26feb613

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Abstract : The SiO2@TiO2 nanostructured electrode material was effectively produced by a sol–gel technique. The produced material's structural, morphological, optical, and electrochemical properties were comprehensively examined using X-ray diffraction (XRD), UV-visible spectroscopy, scanning electron microscopy (SEM), and electrochemical methods. XRD examination verified the synthesis of crystalline rutile TiO₂ in conjunction with silica, demonstrating the successful creation of a SiO2@TiO2 composite structure. SEM investigation identified spheroidal particles exhibiting a size distribution from the nanometre to submicron scale. Energy-dispersive X-ray spectroscopy (EDX) verified the existence of Si, Ti, and O elements in a near-stoichiometric composition. UV–visible absorption analyses indicated an optical band gap of roughly 3.03 eV. The electrochemical performance was assessed by cyclic voltammetry (CV) and galvanostatic charge-discharge (GCD) tests within a three-electrode configuration. The electrode demonstrated a specific capacitance of 25 F g⁻¹ at a scan rate of 5 mV s⁻¹ and 37 F g⁻¹ with a current density of 1 A g⁻¹, signifying battery-type behaviour. The results indicate that SiO2@TiO2 is a viable electrode material for energy storage applications.

Keywords : SiO2@TiO2 Nanostructures; Sol-Gel Fabrication; Rutile TiO2; Battery Electrode; Energy Storage

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