Accelerating water dissociation to achieve ampere-level hydrogen peroxide electrosynthesis in brine and seawater.

ABSTRACT: Ampere-level hydrogen peroxide (H₂O₂) electrosynthesis in brine and seawater via two-electron oxygen reduction reaction (2e^- ORR) is promising, but limited by the slow water dissociation and insufficient protons in neutral media. Hence, we design a multifunctional Ni(OH)₂ nanoplates anchored on carbon nanotubes (CNTs) as 2e^- ORR catalyst towards H₂O₂ electrosynthesis, where Ni(OH)₂ nanoplates accelerate water dissociation and proton transfer, resolving the critical proton shortage for H₂O₂ formation. Combined with exceptional chloride tolerance and suppressed hydrogen evolution, the catalyst achieves a high H₂O₂ yield of 141 mol g^-1 h^-1 (

SUBMITTER: Nie J 

PROVIDER: S-EPMC12214788 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature