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Protein Film Infrared Electrochemistry Demonstrated for Study of H2 Oxidation by a [NiFe] Hydrogenase
Published on: December 4, 2017
In situ electrochemically activated stainless steel-derived NiFe hydroxides for a highly efficient and stable oxygen
Ziran Tang1, Shangye Tang1, Xingyan Zhang2,3
1Pegasus California School, Qingdao 266071, PR China.
Chemical Communications (Cambridge, England)
|May 22, 2026
Summary
This study introduces a dual electrochemical activation method to enhance nickel-iron (NiFe) hydroxide catalysts. The strategy significantly boosts catalyst activity and durability for electrochemical applications.
Area of Science:
- Electrochemistry
- Materials Science
- Catalysis
Background:
- Nickel-iron (NiFe) hydroxides are promising electrocatalysts.
- Improving their activity and stability is crucial for electrochemical applications.
Purpose of the Study:
- To develop a dual in situ electrochemical activation strategy for NiFe hydroxides.
- To synergistically enhance the activity and durability of NiFe hydroxides.
Main Methods:
- Stainless-steel mesh activation for sustained Fe ion supply.
- Electrochemical modulation of Ni and Fe valences using Cr.
- Creation of Lewis acid sites on the catalyst surface.
Main Results:
- Durability improved by 6x in alkaline and 4x in neutral media.
- Significant enhancement in intrinsic activity due to valence modulation and Lewis acid sites.
- Synergistic boosting of NiFe hydroxide performance.
Conclusions:
- The dual in situ electrochemical activation strategy effectively enhances NiFe hydroxide catalysts.
- This approach offers a pathway to more active and stable electrocatalysts for various applications.
