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Proton exchange membrane fuel cells are promising clean energy solutions. This study investigates the ORR activity of SiO₂ and N-doped Pt catalysts using DFT analysis. Results show that combined SiO₂ and N modification utilizes oxygen vacancies, reduces desorption energy, and enhances adsorption energy and conductivity, significantly improving ORR activity.

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Stimulus Effects of Oxygen Vacancies in SiO2 and N Co-Modified Pt/C Catalysts

  • 会议论文

  • 发表日期：

    2026年

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  • Jinhui Wang,
  • Jing Huang,
  • Yilin Li,
  • Zhengyuan Wu,
  • Yidan Zhang,
  • Jianfeng Liu,
  • Tao Zhang,
  • Zhengrong Shi

摘要

Proton exchange membrane fuel cells are promising clean energy solutions. This study investigates the ORR activity of SiO₂ and N-doped Pt catalysts using DFT analysis. Results show that combined SiO₂ and N modification utilizes oxygen vacancies, reduces desorption energy, and enhances adsorption energy and conductivity, significantly improving ORR activity.