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<p>The quick decline of fossil fuels caused by high consumption levels has boosted the creation of sustainable energy conversion systems, resulting in a growing energy crisis. The ongoing energy requirement drives the exploration of innovative options for water splitting. It is critical to develop an exceptionally efficient electrocatalyst that can enhance the sluggish oxygen evolution reaction (OER). BiFeO<sub>3</sub> and Sm-doped BiFeO<sub>3</sub> were manufactured via sol–gel technique and investigated as a catalyst for OER in a 1.00&#xa0;M KOH. The morphology and crystalline phases were resolved by utilizing a different analytical technique. The Sm-doped BiFeO<sub>3</sub> displayed efficient OER performance having overpotential (η = 186&#xa0;mV) at 10&#xa0;mA /cm<sup>2</sup> and Tafel value (32&#xa0;mV/dec) and solution resistance (R<sub>s</sub>) of 0.83 Ω. In addition, the electrocatalytic efficiency of Sm-doped BiFeO<sub>3</sub> catalyst for OER exhibits exceptional sustainability for 40&#xa0;h and an increased electrochemically active surface area (ECSA) of 897.5 cm<sup>2</sup>. The better performance of the Sm-doped BiFeO<sub>3</sub> catalyst may be linked to several factors, including its distinctive interrelated morphology, strong synergistic interactions between Sm, Bi and Fe and effective OH<sup>−</sup> ions adsorption. The results indicate that Sm-doped BiFeO<sub>3</sub> has potential as an electrocatalyst in practical applications.</p> Graphical Abstract <p></p>

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Improvement in perovskite Performance by Using Doping Method Under Alkaline Medium

  • 期刊论文

  • 发表日期：

    2025年11月6日

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  • Soumaya Gouadria,
  • F. F. Alharbi,
  • Muhammad Abdullah,
  • Hafiz Muhammad Tahir Farid,
  • Salma Aman

摘要

The quick decline of fossil fuels caused by high consumption levels has boosted the creation of sustainable energy conversion systems, resulting in a growing energy crisis. The ongoing energy requirement drives the exploration of innovative options for water splitting. It is critical to develop an exceptionally efficient electrocatalyst that can enhance the sluggish oxygen evolution reaction (OER). BiFeO3 and Sm-doped BiFeO3 were manufactured via sol–gel technique and investigated as a catalyst for OER in a 1.00 M KOH. The morphology and crystalline phases were resolved by utilizing a different analytical technique. The Sm-doped BiFeO3 displayed efficient OER performance having overpotential (η = 186 mV) at 10 mA /cm2 and Tafel value (32 mV/dec) and solution resistance (Rs) of 0.83 Ω. In addition, the electrocatalytic efficiency of Sm-doped BiFeO3 catalyst for OER exhibits exceptional sustainability for 40 h and an increased electrochemically active surface area (ECSA) of 897.5 cm2. The better performance of the Sm-doped BiFeO3 catalyst may be linked to several factors, including its distinctive interrelated morphology, strong synergistic interactions between Sm, Bi and Fe and effective OH− ions adsorption. The results indicate that Sm-doped BiFeO3 has potential as an electrocatalyst in practical applications.

Graphical Abstract