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<p>The Quartz Crystal Microbalance (QCM) is a powerful instrument for investigating experimental phenomena at the interface of solid fluid in a reaction. It is considered to be exceptionally reliable, flexible, and has a high sensing capability towards the mass deviations at the crystal surface to fluid. The current study investigates the QCM application towards the Electrochemical Reduction of CO<sub>2</sub> (ElRC) process on a synthesized Zinc (Zn) catalysts with Mn<sub>3</sub>O<sub>4</sub> anode. The frequency and mass change responses of three distinct Zn catalysts were evaluated in a CO<sub>2</sub> soluble NaHCO<sub>3</sub> electrolyte solution. The main purpose of this study is to investigate the experimental viability of QCM in the ElRC reaction with CO<sub>2</sub> reduction or adsorption on Zn coated quartz crystal resonator. The effect of the Zn structure on the frequency and mass change with respect to time was discussed in detail for the first time in ElRC reaction. According to the experimental findings, QCM is very beneficial tool for monitoring the impact of CO<sub>2</sub> reduction/adsorption response at the applied voltage. The Zn catalyst activity is confirmed by the change in current density in the presence and absence of CO<sub>2</sub>, the associated frequency and mass changes by QCM confirmed the capacity of catalysts to reduce the CO<sub>2</sub> in the electrolyte solution.</p>

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Investigation of electrochemical reduction of CO2 (ElRC) process using quartz crystal microbalance study on synthesized Zn and Mn3O4 (anode) electrocatalysts

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年5月20日

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  • V. S. K. Yadav,
  • Mohammed A. H. S. Saad,
  • Mohammed J. Al-Marri,
  • Anand Kumar

摘要

The Quartz Crystal Microbalance (QCM) is a powerful instrument for investigating experimental phenomena at the interface of solid fluid in a reaction. It is considered to be exceptionally reliable, flexible, and has a high sensing capability towards the mass deviations at the crystal surface to fluid. The current study investigates the QCM application towards the Electrochemical Reduction of CO2 (ElRC) process on a synthesized Zinc (Zn) catalysts with Mn3O4 anode. The frequency and mass change responses of three distinct Zn catalysts were evaluated in a CO2 soluble NaHCO3 electrolyte solution. The main purpose of this study is to investigate the experimental viability of QCM in the ElRC reaction with CO2 reduction or adsorption on Zn coated quartz crystal resonator. The effect of the Zn structure on the frequency and mass change with respect to time was discussed in detail for the first time in ElRC reaction. According to the experimental findings, QCM is very beneficial tool for monitoring the impact of CO2 reduction/adsorption response at the applied voltage. The Zn catalyst activity is confirmed by the change in current density in the presence and absence of CO2, the associated frequency and mass changes by QCM confirmed the capacity of catalysts to reduce the CO2 in the electrolyte solution.