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<p>This work accentuates the Chemical synthesis and electrochemical study of SnO<sub>2</sub>: activated charcoal nano-spheroids based electrodes in salt and alkali electrolytes. The formation of tetragonal SnO<sub>2</sub> and presence of activated charcoal is confirmed by the X-ray diffraction pattern which is further corroborated by the Fourier transform infra-red spectroscopic and electron dispersive X-ray analysis. The emission scanning electron micrograph depicts interconnected nano-spheroids of average size 100&#xa0;nm which makes the electrode more hydrophilic as the measured contact angle was <InlineEquation ID="IEq1"> <EquationSource Format="TEX">\(\:22^\circ\:\)</EquationSource> </InlineEquation>. The electrochemical analyses were carried using cyclic voltammetry (CV), galvanostatic charge discharge (GCD) and electrochemical impedance spectroscopy (EIS). The types of phenomena responsible for charge storage were investigated and justified. Electrodes exhibit highest charge storage in KOH. The observed maximum specific capacitance (SC) was 189.01 Fg<sup>-1</sup> with 88.1% retention even after 4600 cycles. The study focuses on synergistic integration of SnO<sub>2</sub> with activated charcoal nano-spheroids via the systematic electrolyte-dependent performance evaluation. The synthesis of activated charcoal nano-spheroids and their controlled incorporation with SnO<sub>2</sub>. A systematic electrolyte-dependent electrochemical investigation (NaCl, KCl, NaOH, KOH) under identical experimental conditions. Neverthless, it ccorrelate the charge storage behavior, ion transport resistance, and electrochemical performance with electrolyte chemistry.</p> Graphical Abstract <p></p>

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Electrochemical performance of SnO2 incorporated activated charcoal nano-spheroids based electrodes in salt and alkali electrolytes

  • 期刊论文

  • 发表日期：

    2026年2月27日

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  • S.B. Kale,
  • S. L. Jadhav,
  • A. L. Jadhav,
  • V. S. Koshti,
  • S. R. Surase,
  • V. A. Shinde,
  • A.V. Thakur

摘要

This work accentuates the Chemical synthesis and electrochemical study of SnO2: activated charcoal nano-spheroids based electrodes in salt and alkali electrolytes. The formation of tetragonal SnO2 and presence of activated charcoal is confirmed by the X-ray diffraction pattern which is further corroborated by the Fourier transform infra-red spectroscopic and electron dispersive X-ray analysis. The emission scanning electron micrograph depicts interconnected nano-spheroids of average size 100 nm which makes the electrode more hydrophilic as the measured contact angle was \(\:22^\circ\:\) . The electrochemical analyses were carried using cyclic voltammetry (CV), galvanostatic charge discharge (GCD) and electrochemical impedance spectroscopy (EIS). The types of phenomena responsible for charge storage were investigated and justified. Electrodes exhibit highest charge storage in KOH. The observed maximum specific capacitance (SC) was 189.01 Fg-1 with 88.1% retention even after 4600 cycles. The study focuses on synergistic integration of SnO2 with activated charcoal nano-spheroids via the systematic electrolyte-dependent performance evaluation. The synthesis of activated charcoal nano-spheroids and their controlled incorporation with SnO2. A systematic electrolyte-dependent electrochemical investigation (NaCl, KCl, NaOH, KOH) under identical experimental conditions. Neverthless, it ccorrelate the charge storage behavior, ion transport resistance, and electrochemical performance with electrolyte chemistry.

Graphical Abstract