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Potassium fluoride-induced FeOOH formation in NiFe oxalate for improved oxygen evolution performance
- Issue Date
- Jun-2024
- Publisher
- Royal Society of Chemistry
- Citation
- Chemical Communications, v.60, no.53, pp 6781 - 6784
- Pages
- 4
- Indexed
- SCIE
SCOPUS
- Journal Title
- Chemical Communications
- Volume
- 60
- Number
- 53
- Start Page
- 6781
- End Page
- 6784
- ISSN
- 1359-7345
1364-548X
- Abstract
- Our study introduces a facile synthetic route for the in situ formation of nickel (Ni)-iron (Fe) oxyhydroxide from NiFe oxalate. By adding potassium fluoride (KF) to the synthetic solution, we achieved a predominant surface distribution of Fe (>80 at%) while limiting its bulk incorporation compared to solutions without KF. Operando Raman spectroscopy analysis confirms that the enriched Fe predominantly exists as FeOOH. Our optimized catalyst demonstrates significant efficiency, achieving a current density of 10 mA cm−2 at a notably low overpotential of 226 mV. © 2024 The Royal Society of Chemistry.
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