Versatile Photoelectrocatalysis Strategy Raising Up the Green Production of Hydrogen Peroxide

Abstract H 2 O 2 plays an irreplaceable role in many aspects of human society, such as paper bleaching, medical disinfection, wastewater treatment, organic synthesis, hydrometallurgy and the electronic industry. However, the unsustainability of the current industrial production process of traditional anthraquinone has a serious conflict with the green sustainable development. The photo/electrocatalytic H 2 O 2 production from renewable energy has the advantages of being more economical, low‐carbon and green, and in line with the requirements of energy economy. These catalytic methods of green H 2 O 2 production have played a demonstrative role in the development of many small molecules, contributing to a fundamental understanding of general catalysis and providing a scientific perspective for future new energy cycles. In this review, the authors aim to integrate the reaction process and mechanism of photocatalytic and electrocatalytic H 2 O 2 production, summarize the development and application of photocatalytic and electrocatalytic H 2 O 2 production in recent years, and assess the modern technologies promoted in the process of H 2 O 2 production research, including the development of flux production equipment and reaction coproduction, etc. This review intends to provide a clear logic profile and new directions for the development of H 2 O 2 production, and calls for more researchers to provide more insights into the development of this field.