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<p>The escalating global demand for sustainable energy solutions has intensified the pursuit of advanced hybrid energy storage systems. This work presents a novel composite electrode engineered from hydrothermally synthesized molybdenum titanium carbide (Mo<sub>2</sub>Ti<sub>2</sub>C<sub>3</sub>Tₓ) MXene and copper-tetrakis (4-carboxyphenyl) porphyrin (Cu-TCPP) metal–organic framework (MOF). When configured in a three-electrode system, the optimized Mo<sub>2</sub>Ti<sub>2</sub>C<sub>3</sub>T<sub>x</sub>/Cu-TCPP composite exhibits a remarkable specific capacity of 1159&#xa0;C&#xa0;g<sup>−1</sup>. Furthermore, an asymmetric supercapacitor device fabricated with this composite as the anode and activated carbon as the cathode achieves a high capacity of 232.4&#xa0;C&#xa0;g<sup>−1</sup>. This device delivers outstanding energy and power densities, reaching 63.2&#xa0;Wh&#xa0;kg<sup>−1</sup> at a power density of 1791&#xa0;W&#xa0;kg<sup>−1</sup>, thereby outperforming many previously reported analogous systems. The device also demonstrates exceptional long-term durability, retaining 95% of its initial capacity with a coulombic efficiency of 84% over 10,000 consecutive charge–discharge cycles. These compelling results underscore the significant potential of the Mo<sub>2</sub>Ti<sub>2</sub>C<sub>3</sub>T<sub>x</sub>/Cu-TCPP composite for application in next-generation, high-performance energy storage devices.</p>

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Interfacial engineering for a dual-function Mo2Ti2C3Tx/Cu-TCPP MXene-MOF hybrid in supercapacitors and photochemistry

  • 期刊论文

  • 发表日期：

    2026年2月20日

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  • N. M. A. Hadia,
  • Md Rezaul Karim,
  • Meshal Alzaid,
  • M. F. Hasaneen,
  • Mohammed Ezzeldien,
  • W. S. Mohamed,
  • Layla Shafei,
  • Safia Bibi,
  • Haseebul Hassan,
  • M. W. Iqbal,
  • Syed Kashif Ali

摘要

The escalating global demand for sustainable energy solutions has intensified the pursuit of advanced hybrid energy storage systems. This work presents a novel composite electrode engineered from hydrothermally synthesized molybdenum titanium carbide (Mo2Ti2C3Tₓ) MXene and copper-tetrakis (4-carboxyphenyl) porphyrin (Cu-TCPP) metal–organic framework (MOF). When configured in a three-electrode system, the optimized Mo2Ti2C3Tx/Cu-TCPP composite exhibits a remarkable specific capacity of 1159 C g−1. Furthermore, an asymmetric supercapacitor device fabricated with this composite as the anode and activated carbon as the cathode achieves a high capacity of 232.4 C g−1. This device delivers outstanding energy and power densities, reaching 63.2 Wh kg−1 at a power density of 1791 W kg−1, thereby outperforming many previously reported analogous systems. The device also demonstrates exceptional long-term durability, retaining 95% of its initial capacity with a coulombic efficiency of 84% over 10,000 consecutive charge–discharge cycles. These compelling results underscore the significant potential of the Mo2Ti2C3Tx/Cu-TCPP composite for application in next-generation, high-performance energy storage devices.