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<p>The supercapattery devices have emerged as a prominent energy storage device comprising of high power and energy density values. Metal organic frameworks-based supercapacitors have attracted significant amounts of attention because of their highly porous nature, greater surface area, greater charge conducting, and tunable pore size properties. In this study, Co-H<sub>2</sub>PDC MOF was synthesized with varying concentrations of PANI using a probe sonication technique, leveraging ultrasound energy to achieve a uniform distribution of the constituents. The formation of the required composition was verified from various surface and elemental analysis. The electrochemical response of each composition was initially evaluated in half cell setups. Later on, the most effective electrode i.e., Co-MOF/10&#xa0;mg PANI, was paired alongside AC electrode which resulted in achieving a specific capacity of 472.53&#xa0;C/g at 1.9&#xa0;A/g. Furthermore, the fabricated device exhibited a significant energy density of 111.56 Wh/kg and an impressive power density of 12,750&#xa0;W/kg. The hybrid device preserved 92% of its original specific capacity after completing 1,000 continuous GCD cycles. This work suggests that Co-MOF/10&#xa0;mg PANI paired with activated carbon (AC) could be a viable option for high-energy storage applications.</p>

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Ultrasound-assisted synthesis of Co-MOF/PANI composites with enhanced electrochemical performance for advanced supercapattery applications

  • 期刊论文

  • 发表日期：

    2025年10月22日

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  • Muhammad Ramzan Abdul Karim,
  • Muhammad Huzaifa,
  • Anique Ahmed,
  • Mohsin Ali Marwat,
  • Gul Zeb,
  • Ehsan Ul Haq

摘要

The supercapattery devices have emerged as a prominent energy storage device comprising of high power and energy density values. Metal organic frameworks-based supercapacitors have attracted significant amounts of attention because of their highly porous nature, greater surface area, greater charge conducting, and tunable pore size properties. In this study, Co-H2PDC MOF was synthesized with varying concentrations of PANI using a probe sonication technique, leveraging ultrasound energy to achieve a uniform distribution of the constituents. The formation of the required composition was verified from various surface and elemental analysis. The electrochemical response of each composition was initially evaluated in half cell setups. Later on, the most effective electrode i.e., Co-MOF/10 mg PANI, was paired alongside AC electrode which resulted in achieving a specific capacity of 472.53 C/g at 1.9 A/g. Furthermore, the fabricated device exhibited a significant energy density of 111.56 Wh/kg and an impressive power density of 12,750 W/kg. The hybrid device preserved 92% of its original specific capacity after completing 1,000 continuous GCD cycles. This work suggests that Co-MOF/10 mg PANI paired with activated carbon (AC) could be a viable option for high-energy storage applications.