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<p>Power sector suffers substantial issues because of swift extinction of natural resources. It is concerning that our environment is being degraded by excessive use of fossil fuels for power generation. It necessitates development of sustainable energy conversion technologies, with water splitting emerging as a promising approach to attain clean hydrogen production. Here, CeAlO<sub>3</sub>/PANI composite was formulated via a hydrothermal method and evaluated as an electrocatalyst towards oxygen evolution reaction (OER). Structural and morphological analysis confirm successful formation of a polymer wrapped nanosheet-like composite, while BET analysis revealed a surface area of 54.2&#xa0;m<sup>2</sup>&#xa0;g<sup>−1</sup>. Electrochemical studies in alkaline medium demonstrated excellent OER performance, with a low overpotential of 219.1&#xa0;mV and a Tafel slope of 48.4&#xa0;mV/dec. Enhanced activity is attributed to improved charge transfer and increased active surface sites arising from synergistic interaction between CeAlO<sub>3</sub> and PANI.</p> Graphical abstract <p></p>

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Integrated structural, morphological and electrochemical studies of conductive polymer-CeAlO3 perovskite heterostructure for efficient oxygen evolution performance

  • 期刊论文

  • 发表日期：

    2026年7月20日

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  • Abdul Baseer,
  • B. M. Alotaibi,
  • Ali El-Rayyes,
  • Haifa A. Alyousef,
  • Albandari .W. Alrowaily,
  • Eman Alzahrani,
  • Hala M. Abo-Dief,
  • Reda A. Haggam

摘要

Power sector suffers substantial issues because of swift extinction of natural resources. It is concerning that our environment is being degraded by excessive use of fossil fuels for power generation. It necessitates development of sustainable energy conversion technologies, with water splitting emerging as a promising approach to attain clean hydrogen production. Here, CeAlO3/PANI composite was formulated via a hydrothermal method and evaluated as an electrocatalyst towards oxygen evolution reaction (OER). Structural and morphological analysis confirm successful formation of a polymer wrapped nanosheet-like composite, while BET analysis revealed a surface area of 54.2 m2 g−1. Electrochemical studies in alkaline medium demonstrated excellent OER performance, with a low overpotential of 219.1 mV and a Tafel slope of 48.4 mV/dec. Enhanced activity is attributed to improved charge transfer and increased active surface sites arising from synergistic interaction between CeAlO3 and PANI.

Graphical abstract