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<p>Perovskite oxide catalysts have been verified to prominently enhance the efficiency of electrolytic water splitting reactions. The synthesis of a 0.03Pt-La<sub>0.6</sub>Sr<sub>0.4</sub>CoO<sub>3</sub> material, accomplished <i>via</i> the high-temperature shock (HTS) approach, constitutes a crucial advancement presented herein. The catalytic properties of Pt-doped perovskite materials for the oxygen evolution reaction (OER) were investigated under optimal experimental circumstances. The discoveries disclose that the platinum-doped sample manifests a remarkable reduction in OER catalytic overpotential by 78 mV in contrast to the non-doped counterpart. Advanced characterization techniques, encompassing scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), and <i>in situ</i> Raman spectroscopy, were utilized to explore the performance of the catalyst. The outcomes suggest that the enhanced performance is ascribable to the integration of platinum atoms into the perovskite lattice, which gives rise to an expansion of the lattice and a subsequent optimization of the electronic structure. This research offers a novel perspective for the development of electrocatalysts intended for the oxygen evolution reaction, potentially laying the foundation for more efficient and effective energy conversion technologies.</p>

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Ultrafast Synthesis of Oxygen Vacancy Rich Pt-Doped La0.6Sr0.4CoO3 with Enhanced Oxygen Evolution Activities

  • 期刊论文

  • 发表日期：

    2025年11月24日

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  • Hekang Wang,
  • Xiaoran Huang,
  • Cairong Gong,
  • Gang Xue

摘要

Perovskite oxide catalysts have been verified to prominently enhance the efficiency of electrolytic water splitting reactions. The synthesis of a 0.03Pt-La0.6Sr0.4CoO3 material, accomplished via the high-temperature shock (HTS) approach, constitutes a crucial advancement presented herein. The catalytic properties of Pt-doped perovskite materials for the oxygen evolution reaction (OER) were investigated under optimal experimental circumstances. The discoveries disclose that the platinum-doped sample manifests a remarkable reduction in OER catalytic overpotential by 78 mV in contrast to the non-doped counterpart. Advanced characterization techniques, encompassing scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), and in situ Raman spectroscopy, were utilized to explore the performance of the catalyst. The outcomes suggest that the enhanced performance is ascribable to the integration of platinum atoms into the perovskite lattice, which gives rise to an expansion of the lattice and a subsequent optimization of the electronic structure. This research offers a novel perspective for the development of electrocatalysts intended for the oxygen evolution reaction, potentially laying the foundation for more efficient and effective energy conversion technologies.