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| 单原子催化剂在气体扩散电极中电合成过氧化氢研究进展 |
| Advances in the electrosynthesis of hydrogen peroxide by single-atom catalysts in gas diffusion electrodes |
| 投稿时间：2025-03-13 修订日期：2025-04-01 |
| DOI： |
| 中文关键词: 单原子催化 气体扩散电极? 过氧化氢 电化学合成 |
| 英文关键词:Single-atom catalysis, Gas diffusion electrode, Hydrogen peroxide, Electrochemical synthesis |
| 基金项目: |
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| 中文摘要: |
| 过氧化氢（H2O2）作为一种清洁能源，在医疗、生活和工业等多个领域都有广泛应用。通过二电子氧还原反应（2e- ORR）电催化合成H2O2可以有效替代高能耗蒽醌法，然而，由于氧还原反应动力学迟滞以及与四电子路径的竞争效应，当前研究聚焦于设计兼具高效催化活性及精准调控两电子路径选择性的先进催化剂。近年来，单原子催化剂（SACs）以其大的原子利用率、可调谐的电子结构和优异的催化性能而受到广泛的关注。基于此，本文概述了2e- ORR的机理，重点从缺陷调控，杂原子掺杂，配位工程，协同效应等调控策略总结了SACs在气体扩散电极（GDEs）中电合成H2O2的应用研究进展，并对基于SACs和GDEs的2e- ORR反应优化策略进行了展望。 |
| 英文摘要: |
| Hydrogen peroxide (H2O2) is a widely used clean energy source in various fields, including medical, domestic, and industrial applications. The electrocatalytic synthesis of H2O2 through the two-electron oxygen reduction reaction (2e- ORR) has the potential to replace the energy-intensive anthraquinone method. However, due to the kinetic hysteresis of the oxygen reduction reaction and the competitive effect with the four-electron pathway, current research is focused on designing advanced catalysts with efficient catalytic activity and precise two-electron pathway selectivity. In recent years, single-atom catalysts (SACs) have gained significant attention for their high atom utilization, tunable electronic structure, and excellent catalytic performance. This paper outlines the mechanism of 2e- ORR and discusses the progress of research on the application of SACs for the electrosynthesis of H2O2 in gas diffusion electrodes (GDEs). This includes defect modulation, heteroatom doping, ligand engineering, synergistic effects, and other modulation strategies. Additionally, the paper provides an outlook on the optimization strategy for the 2e- ORR reaction using SACs and GDEs. |
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