Weyl semimetal PtBi₂ crystals

Outperforms Pt/C in acid

These topological semimetal crystals exhibit hydrogen evolution activity exceeding commercial Pt/C in acid, with further enhancement via doping.

Yinghui, Liu · Chen, Qiubo · An, Yukai · Qiu, Hailong · Ma, Shihui · Liu, Hongjun · Hu, Zhanggui · Wu, Yicheng

Inorganic Chemistry Frontiers 2025

Advantages

Hydrogen evolution activity significantly surpasses commercial Pt/C electrodes in acidic solutions

Doping with various elements further enhances HER performance

Centimeter-scale crystals