Oxygen-Vacancy-Rich IrOx@TiOₓ Catalyst

Low-Ir, High-Activity, Ultra-Stable

Oxygen-vacancy-mediated dynamic bidirectional oxygen migration enhances both activity and long-term stability of the acidic oxygen evolution reaction at ultra-low iridium loading.

Xiong, Haonan · Chen, Hongwu · Zetong, Zhuang · Jiaojiao, Feng · Zhou, Yiqing · Yu, Xiaowen · Li, Chun

ACS Nano 2026

Specifications

gIr

{'zh': '1.60', 'en': '1.60'} V

gIr

{'zh': '1.55', 'en': '1.55'} V

铱载量

{'zh': '32.5', 'en': ''} wt%

with negligible decay

{'zh': '0.33', 'en': '0.33'} mgIr cm⁻²