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<p>The conversion of low-grade waste heat into valuable chemicals is a promising route toward energy conservation and carbon neutrality. Herein, we demonstrate that La-substituted SrTiO<sub>3</sub> serves as an efficient thermoelectrocatalytic material for the simultaneous H<sub>2</sub>O<sub>2</sub> production via H<sub>2</sub>O oxidation and O<sub>2</sub> reduction. Under a mild temperature gradient of 130 °C, the system achieves a notable H<sub>2</sub>O<sub>2</sub> production rate of 412 µmol·L<sup>−1</sup>·g<sup>−1</sup>·h<sup>−1</sup>. This work offers a potential strategy for sustainable chemical synthesis by utilizing ubiquitous low-grade thermal energy.</p>

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Thermoelectrocatalytic H2O2 production via dual redox of O2 and H2O on La-substituted SrTiO3

  • 期刊论文

  • 发表日期：

    2026年5月20日

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  • Yuheng Gu,
  • Qian Yang,
  • Hansong Yuan,
  • Shun Li,
  • Jianming Zhang,
  • Li Li,
  • Suci Meng,
  • Jingbo Wu,
  • Long Zhang,
  • Yuqiao Zhang

摘要

The conversion of low-grade waste heat into valuable chemicals is a promising route toward energy conservation and carbon neutrality. Herein, we demonstrate that La-substituted SrTiO3 serves as an efficient thermoelectrocatalytic material for the simultaneous H2O2 production via H2O oxidation and O2 reduction. Under a mild temperature gradient of 130 °C, the system achieves a notable H2O2 production rate of 412 µmol·L−1·g−1·h−1. This work offers a potential strategy for sustainable chemical synthesis by utilizing ubiquitous low-grade thermal energy.