Catalytic Hydrogen Peroxide Production Via 2e– ORR at Low Temperature and Room Pressure

Abstract Hydrogen peroxide (H2O2) synthesis generally involves high temperature and pressure, huge energy consumption, and toxic byproduct emission. Exploring green, safe, sustainable, and energy-saving protocols for stable H2O2 evolution is meaningful and urgent. This Perspective systematically outlines the mainstream methods (electrocatalytic two-electron oxygen reduction, photocatalytic reaction, novel zero-energy consumption synthesis, etc.) for catalytic H2O2 synthesis at room temperature and pressure. It also summarizes the key factors in catalyst design, reaction mechanisms, and interface regulation, analyzes the current technique bottlenecks, such as selectivity, yield, stability, and concentration accumulation, and proposes future development directions for industrial H2O2 production. This paper is expected to spur certain innovative ideas for optimizing the current H2O2 synthesis systems.