Bu Yunfei, Ma Rong, Wang Yaobin, Zhao Yunxia, Li Feng, Han Gao-Feng, Baek Jong-Beom
UNIST-NUIST Environment and Energy Jointed Lab, (UNNU), Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC), Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Technology, Nanjing University of Information Science and Technology (NUIST), Nanjing, 210044, P. R. China.
Laboratory of Advanced Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, 220 Handan, Shanghai, 200433, P. R. China.
Adv Mater. 2024 Dec;36(49):e2412670. doi: 10.1002/adma.202412670. Epub 2024 Oct 24.
Hydrogen peroxide (HO) is a high-value chemical widely used in electronics, textiles, paper bleaching, medical disinfection, and wastewater treatment. Traditional production methods, such as the anthraquinone oxidation process and direct synthesis, require high energy consumption, and involve risks from toxic substances and explosions. Researchers are now exploring photochemical, electrochemical, and photoelectrochemical synthesis methods to reduce energy use and pollution. This review focuses on the 2-electron oxygen reduction reaction (2e ORR) for the electrochemical synthesis of HO and discusses how catalyst active sites influence O adsorption. Strategies to enhance HO selectivity by regulating these sites are presented. Catalysts require strong O adsorption to initiate reactions and weak *OOH adsorption to promote HO formation. The review also covers advances in single-atom catalysts (SACs), multi-metal-based catalysts, and highlights non-noble metal oxides, especially perovskite oxides, for their versatile structures and potential in 2e ORR. The potential of localized surface plasmon resonance (LSPR) effects to enhance catalyst performance is also discussed. In conclusion, emphasis is placed on optimizing catalyst structures through theoretical and experimental methods to achieve efficient and selective HO production, aiming for sustainable and commercial applications.
过氧化氢（HO）是一种高价值化学品，广泛应用于电子、纺织、纸张漂白、医疗消毒和废水处理等领域。传统的生产方法，如蒽醌氧化法和直接合成法，能耗高，且存在有毒物质和爆炸风险。研究人员目前正在探索光化学、电化学和光电化学合成方法，以减少能源消耗和污染。本综述重点关注用于电化学合成HO的2电子氧还原反应（2e ORR），并讨论催化剂活性位点如何影响O吸附。提出了通过调节这些位点来提高HO选择性的策略。催化剂需要强O吸附来引发反应，弱*OOH吸附来促进HO形成。综述还涵盖了单原子催化剂（SACs）、多金属基催化剂的进展，并重点介绍了非贵金属氧化物，特别是钙钛矿氧化物，因其结构多样且在2e ORR中具有潜力。还讨论了局部表面等离子体共振（LSPR）效应增强催化剂性能的潜力。总之，重点是通过理论和实验方法优化催化剂结构，以实现高效、选择性地生产HO，目标是实现可持续和商业应用。
