Ir/Nb-doped TiO2 Interface

High activity and stability in acidic OER

Interfacial oxygen vacancies create a directional oxygen spillover pathway that greatly reduces OH* migration barriers for efficient acidic OER.

Zhu, Yu · Guo, Fei · Qiliang, Wei · Lai, Feiyan · Chen, Runzhe · Jianing, Guo · Gong, Manxi · Shunqiang, Zhang · Zichen, Wang · Zhong, Jun · He, Guanjie · Cheng, Niancai

Advanced Functional Materials 2025

Specifications

Overpotential
{'zh': '', 'en': '253'} mV

Advantages

1.69 V @ 1.0 A cm⁻², 80 °C

≈500 h @ 1.0 A cm⁻²

Activity and durability surpass commercial IrO2