High-Entropy Alloy HER Catalyst

2200 h stable in acid

Self-healing via dynamic dissolution-deposition equilibrium enables long-term stable hydrogen evolution in acidic PEM electrolysis.

Li, Zhibin · Haonan, Zhong · Liu, Xiongjun · Li, Rui · Chen, Houwen · Wang, Xianzhen · Wan, Chubin · Wu, Yuan · Wang, Hui · Jiang, Suihe · Zhang, Xiaobin · Lü, Zhaoping

Advanced Materials 2025

Specifications

at A cm

{'zh': '137', 'en': '2.5'} times lower

Pt loading wt

{'zh': '8.87', 'en': '60'} %

Advantages

Stable over 2200 h at 1 A cm⁻²

No degradation after 1,000,000 cycles