Glucose‐Tuned Electrode–Electrolyte Interface Microenvironment for Electrosynthesis of Hydrogen Peroxide

Designing high‐performance and stable electrode‐electrolyte interfaces for electrochemical synthesis of H2O2 remains of great challenge. Herein, glucose tuned electrode‐electrolyte microenvironment is created successfully due to the adsorption of graphite felt. The faraday efficiency (FE) of hydrogen peroxide (H2O2) can be improved 30% by adding glucose to the electrolyte. Nuclear Magnetic Resonance (NMR), in‐situ attenuated total reflectance Fourier transform infrared (ATR‐FTIR) and molecule dynamic (MD) simulation confirm the existence of hydrogen bonding between glucose and water molecules in the local microenvironment, where the suitable *H supply environment favorable for 2e− oxygen reduction reaction (ORR). This work provides a new method to improve 2e− ORR activity, proving the effectiveness of adding organic molecules to regulate the interfacial hydrogen bond environment.