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<p>The production of highly effective and stable electrocatalysts for OER (oxygen evolution reaction) has become challenging for sustainable energy production. The present study uses the simple hydrothermal approach to prepare a noble-metal free electrocatalyst, i.e., SnCdO<sub>3</sub>/rGO. The successful production of bimetallic oxide with rGO composite was proved by physiochemical data, illustrating the crystal&#xa0;structure of prepared SnCdO<sub>3</sub> material. Moreover, adding rGO to the SnCdO<sub>3</sub> leads to the dispersion of nanoparticles onto the nanosheets, improving the material’s overall surface area, as proven by BET analysis. The electrochemical testing verifies the transmission of four electron mechanisms by displaying the reduced Tafel value (36 mV dec<sup>−1</sup>), and a reduced overpotential of 227 mV. These findings suggest that the material is highly active as a catalytic material during OER operation and remains stable for 50 h under the alkaline condition, as evidenced by the chronoamperometry testing. Hence, this novel electrocatalyst can potentially replace noble catalysts and open a new pathway for non-noble metal-based electrocatalysts in future energy conversion applications.</p>

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Synthesis of SnCdO3/rGO with high electrocatalytic performance for oxygen evolution reaction

  • 期刊论文

  • 发表日期：

    2025年7月1日

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  • Sumia Rubab,
  • Abhinav Kumar,
  • Sarah A. Alsalhi,
  • Jayanti Makasana,
  • Rekha M. M,
  • G. Senthil Kumar,
  • Mohammed A. Al-Anber,
  • Sankar Narayan Das,
  • Rahul Raj Chaudhary,
  • Ankit D. Oza

摘要

The production of highly effective and stable electrocatalysts for OER (oxygen evolution reaction) has become challenging for sustainable energy production. The present study uses the simple hydrothermal approach to prepare a noble-metal free electrocatalyst, i.e., SnCdO3/rGO. The successful production of bimetallic oxide with rGO composite was proved by physiochemical data, illustrating the crystal structure of prepared SnCdO3 material. Moreover, adding rGO to the SnCdO3 leads to the dispersion of nanoparticles onto the nanosheets, improving the material’s overall surface area, as proven by BET analysis. The electrochemical testing verifies the transmission of four electron mechanisms by displaying the reduced Tafel value (36 mV dec−1), and a reduced overpotential of 227 mV. These findings suggest that the material is highly active as a catalytic material during OER operation and remains stable for 50 h under the alkaline condition, as evidenced by the chronoamperometry testing. Hence, this novel electrocatalyst can potentially replace noble catalysts and open a new pathway for non-noble metal-based electrocatalysts in future energy conversion applications.