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<p>The design of bifunctional materials that can store and convert energy efficiently and affordably is critical for the growth of eco-friendly energy sources. This work developed and explored a hybrid of DyCoO<sub>3</sub> and polyaniline (DCO/PANI) as a potential electrode material for oxygen evolution reactions (OER) and supercapacitors (SC<sub>s</sub>). The perovskite oxide DyCoO<sub>3</sub> provides several redox-active sites and enhanced structural stability, while the addition of conductive PANI enhances electron transport and increases surface hydrophilicity. This combination enhances both electrochemical performance and lifespan in an alkaline environment. With a current density (C<sub>d</sub>) of 10&#xa0;mA/cm<sup>2</sup>, the DCO-PANI hybrid exhibited the minimizing the Tafel slope (30&#xa0;mV/dec) and maintaining a lower overpotential (η) of 253&#xa0;mV. A specific capacitance (C<sub>sp</sub>) of 1208.51 F/g and longevity for up to 50&#xa0;h were all shown by the supercapacitor electrode at a C<sub>d</sub> (1 A/g). Strong interactions between DCO and PANI at the interface enable rapid redox process of cobalt (Co) species, thereby improving productivity. The DCO-PANI hybrid exhibits exceptional bifunctional properties, integrating efficient OER catalysis with enhanced energy storage capabilities. This research provides important information for the development of hybrid perovskite-polymer materials and highlights their potential as integrated energy conversion/storage devices for environmentally friendly applications.</p>

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Development of DyCoO3-PANI hybrid as a synergistic bifunctional material for oxygen evolution and supercapacitor applications

  • 期刊论文

  • 发表日期：

    2026年7月4日

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  • Mishkat Majeed,
  • Shaimaa A. M. Abdelmohsen,
  • Ali El-Rayyes,
  • Meznah M. Alanazi,
  • Hussain Sawwan,
  • Eman Alzahrani,
  • Waqas Ul Arifeen,
  • Reda A. Haggam

摘要

The design of bifunctional materials that can store and convert energy efficiently and affordably is critical for the growth of eco-friendly energy sources. This work developed and explored a hybrid of DyCoO3 and polyaniline (DCO/PANI) as a potential electrode material for oxygen evolution reactions (OER) and supercapacitors (SCs). The perovskite oxide DyCoO3 provides several redox-active sites and enhanced structural stability, while the addition of conductive PANI enhances electron transport and increases surface hydrophilicity. This combination enhances both electrochemical performance and lifespan in an alkaline environment. With a current density (Cd) of 10 mA/cm2, the DCO-PANI hybrid exhibited the minimizing the Tafel slope (30 mV/dec) and maintaining a lower overpotential (η) of 253 mV. A specific capacitance (Csp) of 1208.51 F/g and longevity for up to 50 h were all shown by the supercapacitor electrode at a Cd (1 A/g). Strong interactions between DCO and PANI at the interface enable rapid redox process of cobalt (Co) species, thereby improving productivity. The DCO-PANI hybrid exhibits exceptional bifunctional properties, integrating efficient OER catalysis with enhanced energy storage capabilities. This research provides important information for the development of hybrid perovskite-polymer materials and highlights their potential as integrated energy conversion/storage devices for environmentally friendly applications.