Redox-mediated decoupled seawater direct splitting for H₂ production.

ABSTRACT: Seawater direct electrolysis (SDE) using renewable energy provides a sustainable pathway to harness abundant oceanic hydrogen resources. However, the side-reaction of the chlorine electro-oxidation reaction (ClOR) severely decreased direct electrolysis efficiency of seawater and gradually corrodes the anode. In this study, a redox-mediated strategy is introduced to suppress the ClOR, and a decoupled seawater direct electrolysis (DSDE) system incorporating a separate O₂ evolution reactor is established. Ferricyanide/ferrocyanide ([Fe(CN)₆]^3-/4-) serves as an electron-mediator between the cell and the reactor, thereby enabling a more dynamically favorable half-reaction to supplant the traditional oxygen evolution reaction (OER). This alteration involves a str

SUBMITTER: Liu T 

PROVIDER: S-EPMC11473778 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature