Chlorine electrosynthesis from seawater is limited by poor selectivity and stability under industrial-scale conditions. Here atomic-step-enriched ultrafine high-entropy alloy nanowires enable highly efficient chlorine evolution at 10 kA m−2 for over 5,500 h through dynamic Pt–O active sites, reducing electricity consumption and feedstock costs for next-generation chlor-alkali processes.
- Yongchao Yang
- Yuwei Yang
- Shenlong Zhao
