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<p>Fossil fuels are depleting continuously due to their excessive usage which led to energy crisis. Researchers are searching some innovative method to find out new renewable energy sources for energy production. Water splitting is acknowledged as significant source of renewable energy generation. Yet to develop electrocatalyst for water splitting having over potential is difficult task. The modern study described CoCr<sub>2</sub>O<sub>4</sub>/PANI synthesis by hydrothermal route for water splitting. The various techniques have been used like BET, XRD and SEM to find out surface area, crystal planes as well as morphology of prepared electrocatalyst. The electrochemical effectiveness of prepared electrode is analyzed with the help of three electrode system under alkaline solution. Moreover, rate of reaction and endurance of material is investigated through EIS, LSV and chronoamperometry. At 10&#xa0;mA cm<sup>−2</sup> fabricated electrode has 229 mV over-potential having Tafel value of 42 mV dec<sup>−1</sup> represented electrochemical findings. Whereas, stability test revealed that composite with 50&#xa0;h stability had improved potential with minimum changes in current. The remarkable electrochemical characteristics of CoCr<sub>2</sub>O<sub>4</sub>/PANI complex mark it viable catalyst for OER and other application of energy conversion.</p>

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Synergistic effect of CoCr2O4 and polyaniline nanohybrid catalyst for boosting the OER activity

  • 期刊论文

  • 发表日期：

    2025年9月2日

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  • Nighat Kareem,
  • Iffat Karim,
  • Hala M. Abo-Dief,
  • Ahmed Hussain Jawhari,
  • Muhammad Faizan

摘要

Fossil fuels are depleting continuously due to their excessive usage which led to energy crisis. Researchers are searching some innovative method to find out new renewable energy sources for energy production. Water splitting is acknowledged as significant source of renewable energy generation. Yet to develop electrocatalyst for water splitting having over potential is difficult task. The modern study described CoCr2O4/PANI synthesis by hydrothermal route for water splitting. The various techniques have been used like BET, XRD and SEM to find out surface area, crystal planes as well as morphology of prepared electrocatalyst. The electrochemical effectiveness of prepared electrode is analyzed with the help of three electrode system under alkaline solution. Moreover, rate of reaction and endurance of material is investigated through EIS, LSV and chronoamperometry. At 10 mA cm−2 fabricated electrode has 229 mV over-potential having Tafel value of 42 mV dec−1 represented electrochemical findings. Whereas, stability test revealed that composite with 50 h stability had improved potential with minimum changes in current. The remarkable electrochemical characteristics of CoCr2O4/PANI complex mark it viable catalyst for OER and other application of energy conversion.