• • Achieves 82.1% Faradaic efficiency (FE) for propylene oxide (PO) at an industrial current density of 100 mA cm⁻², directly enabling high-yield electrosynthesis with reduced separation costs and energy input per ton of PO.
• • Maintains operational stability for 500 h of continuous electrolysis with no significant degradation in FE or catalyst structure, surpassing typical lifetimes of noble-metal-based electrocatalysts (<100 h) and meeting industrial durability thresholds.
• • Demonstrates scalability in a 4 × 4 cm² electrolyzer, validating the potential for direct scale-up to commercial modules without performance loss, a critical requirement for industrial adoption.
• • Suppresses transition metal dissolution at high anodic potentials via strong electronic interactions between high-valence Pt single atoms and the high-entropy amorphous CoFeNiCrMnBOx borate substrate, mitigating catalyst deactivation and ensuring long-term stability.