【摘要】 通过两电子氧还原反应（2e-ORR）电化学合成过氧化氢（H₂O₂）的显著优势是高成本效益和环境友好性，且可以实现H₂O₂的按需现场生产，其关键技术之一是安全、经济和高效2e-ORR催化剂的开发。本文概述了利用2e-ORR制备H₂O₂贵金属基催化材料近10年的研究进展。从ORR反应机理出发，介绍了贵金属表面反应途径的调节旋钮，即*OOH结合能和O2吸附模式；重点总结并举例说明了贵金属材料的几何结构和电子结构调控的方法学，强调了平衡优化催化活性和选择性的重要性；此外，简要介绍了基础实验室中2e-ORR催化剂性能的评估方法；最后，讨论了贵金属电催化合成H₂O₂的挑战和前景，特别是催化剂的稳定性和成本的客观评价。旨在为新型2e-ORR催化剂的理性设计提供参考。更多还原

【Abstract】 Electrochemical synthesis of hydrogen peroxide（H₂O₂） via two-electron oxygen reduction reaction（2e-ORR） is featured with cost effectiveness and environmental friendliness, and enables on-site production of H₂O₂ on demand. One of the key technologies is the development of safe, economical and efficient 2e-ORR catalysts. Here, the research progress in precious-metal-based catalytic materials for the synthesis of H₂O₂ via 2e-ORR in recent ten years is reviewed. This review starts with the fundamental mechanism of ORR, pointing out the tuning knobs of reaction pathway on precious-metal surfaces, namely, *OOH binding energy and O2adsorption mode. The regulating methodologies of geometric structure and electronic structure of precious-metal materials are summarized and exemplified, emphasizing the importance of balanced optimization of catalytic activity and selectivity. We have also briefly introduced the lab-scale methods for performance evaluation of 2e-ORR catalysts. Finally, the challenges and prospects of H₂O₂ synthesis catalyzed by precious metals are discussed, especially the catalyst stability and the objective evaluation of cost. This review is expected to provide a reference for rational design of novel 2e-ORR catalysts.更多还原