Scholarlink

<p>Iron oxide thin films with compact and granular morphology were successfully synthesized at room temperature via the chemical bath deposition (CBD) technique with systematic variation in the molar concentration of ferrous sulfate precursors. The influence of precursor concentration on the structural, morphological, and electrochemical properties was comprehensively investigated. X-ray diffraction (XRD) confirmed the polycrystalline nature of the films, while Fourier-transform infrared (FTIR) spectroscopy verified the formation of Fe–O bonding. Field-emission scanning electron microscopy (FE-SEM) revealed concentration-dependent modifications in the granular morphology, whereas wettability measurements demonstrated the hydrophobic character of the films. Electrochemical evaluation in 1 M NaOH using cyclic voltammetry (CV), chronopotentiometry, and electrochemical impedance spectroscopy highlighted a strong dependence of capacitance behavior on precursor concentration. The optimized electrode achieved a maximum specific capacitance of 244 F g⁻<sup>1</sup> at 5 mV s⁻<sup>1</sup>, alongside superior energy and power densities of 90.35 Wh kg⁻<sup>1</sup> and 8.30 kW kg⁻<sup>1</sup>, respectively, with an efficiency of 98.2% from galvanostatic charge–discharge analysis. These findings establish CBD-grown iron oxide thin films as promising, low-cost, and high-performance electrode materials for next-generation supercapacitors.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Nanostructured iron oxide thin films via chemical bath deposition: tailored synthesis, characterization, and supercapacitor performance

  • 期刊论文

  • 发表日期：

    2026年5月11日

查看全文
  • Shilpa P. Thokale,
  • Mahadev T. Mhetre,
  • Rushikesh G. Bobade,
  • Shoyebmohamad F. Shaikh,
  • Raisuddin Ali,
  • Abu ul Hassan S. Rana,
  • Revanappa C. Ambare,
  • Balkrishna J. Lokhande

摘要

Iron oxide thin films with compact and granular morphology were successfully synthesized at room temperature via the chemical bath deposition (CBD) technique with systematic variation in the molar concentration of ferrous sulfate precursors. The influence of precursor concentration on the structural, morphological, and electrochemical properties was comprehensively investigated. X-ray diffraction (XRD) confirmed the polycrystalline nature of the films, while Fourier-transform infrared (FTIR) spectroscopy verified the formation of Fe–O bonding. Field-emission scanning electron microscopy (FE-SEM) revealed concentration-dependent modifications in the granular morphology, whereas wettability measurements demonstrated the hydrophobic character of the films. Electrochemical evaluation in 1 M NaOH using cyclic voltammetry (CV), chronopotentiometry, and electrochemical impedance spectroscopy highlighted a strong dependence of capacitance behavior on precursor concentration. The optimized electrode achieved a maximum specific capacitance of 244 F g⁻1 at 5 mV s⁻1, alongside superior energy and power densities of 90.35 Wh kg⁻1 and 8.30 kW kg⁻1, respectively, with an efficiency of 98.2% from galvanostatic charge–discharge analysis. These findings establish CBD-grown iron oxide thin films as promising, low-cost, and high-performance electrode materials for next-generation supercapacitors.