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<p>In this article, we have investigated the impact of various aqueous electrolytes on the electrochemical performance of Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>-BiFeO<sub>3</sub> (MXene-BFO) nanocomposites for energy storage applications. Structural and morphological characterizations were performed utilizing X-ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM), and energy-dispersive spectroscopy (EDS). The study focused on four electrolytes: NaOH, Na<sub>2</sub>SO<sub>4</sub>, MgSO<sub>4</sub>, and LiCl, exploring their interactions with the MXene-BFO nanocomposites system. Electrochemical analyses, including cyclic voltammetry (CV), galvanostatic charge-discharge (GCD) tests, and electrochemical impedance spectroscopy (EIS), were conducted to evaluate specific capacitance, potential windows, and impedance characteristics. Notably, the nanocomposite demonstrated optimal pseudocapacitive performance in 1&#xa0;M NaOH, exhibiting a specific capacitance of 532&#xa0;F/g at a scan rate of 2 mV/sec, and achieved an energy density of 53.8 Wh/kg and a power density of 1.62&#xa0;kW/kg at a current density of 1&#xa0;A/g. This electrolyte also displayed low electrolyte resistance (2.9 Ω) and favorable charge transfer resistance (1.5 Ω), with significant coulombic efficiency over 10,000 charge-discharge cycles. These findings underscore the potential of 1&#xa0;M NaOH as a highly effective electrolyte for enhancing the performance of MXene-BFO nanocomposites-based supercapacitors, offering substantial insights into the optimization of electrode-electrolyte interactions in advanced energy storage systems.</p>

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Exploring electrolyte specific effects on multisheets 2-dimensional Ti3C2Tx-BiFeO3 nanocomposites electrodes for high-performance supercapacitors applications

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年7月2日

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  • Sana Zainab,
  • Saif Ullah Awan,
  • Danish Hussain,
  • Syed Rizwan,
  • Taosif Iqbal,
  • Sajal Fraz

摘要

In this article, we have investigated the impact of various aqueous electrolytes on the electrochemical performance of Ti3C2Tx-BiFeO3 (MXene-BFO) nanocomposites for energy storage applications. Structural and morphological characterizations were performed utilizing X-ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM), and energy-dispersive spectroscopy (EDS). The study focused on four electrolytes: NaOH, Na2SO4, MgSO4, and LiCl, exploring their interactions with the MXene-BFO nanocomposites system. Electrochemical analyses, including cyclic voltammetry (CV), galvanostatic charge-discharge (GCD) tests, and electrochemical impedance spectroscopy (EIS), were conducted to evaluate specific capacitance, potential windows, and impedance characteristics. Notably, the nanocomposite demonstrated optimal pseudocapacitive performance in 1 M NaOH, exhibiting a specific capacitance of 532 F/g at a scan rate of 2 mV/sec, and achieved an energy density of 53.8 Wh/kg and a power density of 1.62 kW/kg at a current density of 1 A/g. This electrolyte also displayed low electrolyte resistance (2.9 Ω) and favorable charge transfer resistance (1.5 Ω), with significant coulombic efficiency over 10,000 charge-discharge cycles. These findings underscore the potential of 1 M NaOH as a highly effective electrolyte for enhancing the performance of MXene-BFO nanocomposites-based supercapacitors, offering substantial insights into the optimization of electrode-electrolyte interactions in advanced energy storage systems.