High Catalytic Selectivity of Electron/Proton Dual-Conductive Sulfonated Polyaniline Micropore Encased IrO₂ Electrocatalyst by Screening Effect for Oxygen Evolution of Seawater Electrolysis.

ABSTRACT: Acidic seawater electrolysis offers significant advantages in high efficiency and sustainable hydrogen production. However, in situ electrolysis of acidic seawater remains a challenge. Herein, a stable and efficient catalyst (SPTTPAB/IrO₂) is developed by coating iridium oxide (IrO₂) with a microporous conjugated organic framework functionalized with sulfonate groups (-SO₃H) to tackle these challenges. The SPTTPAB/IrO₂ presents a -SO₃H concentration of 5.62 × 10^-4 mol g^-1 and micropore below 2 nm numbering 1.026 × 10¹⁶ g^-1. Molecular dynamics simulations demonstrate that the conjugated organic framework blocked 98.62% of Cl^- in seawater from reaching the catalyst. This structure co

SUBMITTER: Shen Y 

PROVIDER: S-EPMC11775546 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature