Journal
CHEMSUSCHEM
Volume 10, Issue 2, Pages 394-400Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.201601151
Keywords
electrocatalysis; iron; nickel; oxygen evolution; water oxidation
Funding
- Fundamental Research Funds for the Central Universities [GK201603037]
- Starting Research Funds of Shaanxi Normal University
- National Natural Science Foundation of China [21503126, 21573139]
- Thousand Talents Program of China
Ask authors/readers for more resources
The slow kinetics of water oxidation greatly jeopardizes the efficiency of water electrolysis for H-2 production. Developing highly active water oxidation electrodes with affordable fabrication costs is thus of great importance. Herein, a (NiFeIII)-Fe-II surface species on Ni metal substrate was generated by electro-chemical modification of Ni in a ferrous solution by a fast, simple, and cost-effective procedure. In the prepared NiIIFeIII catalyst film, Fe-III was incorporated uniformly through controlled oxidation of FeII cations on the electrode surface. The catalytically active Ni-II originated from the Ni foam substrate, which ensured the close contact between the catalyst and the support toward improved charge-transfer efficiency. The asprepared electrode exhibited high activity and long-term stability for electrocatalytic water oxidation. The overpotentials required to reach water oxidation current densities of 50, 100, and 500 mAcm(-2) are 276, 290, and 329 mV, respectively.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available