High H₂O₂ production in membrane-free electrolyzer via anodic bubble shielding towards robust rural disinfection.

ABSTRACT: Hydrogen peroxide (H₂O₂) can be sustainably synthesized through the electrochemical oxygen reduction reaction in a dual-chamber water electrolyzer separated by expensive ion exchange (IX) membranes. The development of an IX membrane-free electrolyzer has been limited by direct anodic degradation of the produced H₂O₂. Here, we devise a bubble shielding strategy by using a low-cost polytetrafluoroethylene hydrophobic porous layer (HPL) on the anode that enables numerous sites for anodically generated oxygen bubbles and significantly suppresses H₂O₂ degradation in the electrolyte. The H₂O₂ production increases by ~600% compared to that using non-bubble shielded anode. A high H₂O₂ conc

SUBMITTER: Yi K 

PROVIDER: S-EPMC11846911 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature