Hf-Doped NiFe Layered Double Hydroxide
Low OER overpotential
Hafnium incorporation modulates the electronic structure of Ni and Fe, enhancing electronic synergy among the three metals and significantly boosting OER activity in alkaline media.
Yang, Yang · Yang, Yi Bin · Wang, Zhi · Tian, Hao · Cui, Xun
Chemical Communications 2025
Specifications
- OER overpotential
- {'zh': '177', 'en': '177'} mV
Advantages
Low overpotential
Achieves an overpotential of only 177 mV at 10 mA cm⁻² in alkaline media, reducing energy consumption in water electrolysis.
Enhanced electronic synergy
Hf doping alters the chemical environment of Ni and Fe, enhancing electronic synergy among the three metals and boosting catalytic efficiency.
Applications
- Water electrolysis OER：Low overpotential reduces energy consumption for hydrogen production via water electrolysis.
- Alkaline electrolyzer anode：Efficiently catalyzes the oxygen evolution reaction in alkaline electrolyzers.
- Fuel cell oxygen electrode：Can replace noble metal oxygen electrode materials, reducing fuel cell costs.
- Non-noble metal catalyst：Achieves high OER activity using non-noble metals.