Adjustable Ternary FeCoNi Nanohybrids for Enhanced Oxygen Evolution Reaction

Area of Science:

• Materials Science
• Electrochemistry
• Renewable Energy

Background:

• Water splitting is crucial for clean energy but limited by the slow oxygen evolution reaction (OER).
• Developing efficient and stable electrocatalysts for OER is essential for energy conversion technologies.

Purpose of the Study:

• To synthesize novel FeCoNi nanohybrids using a fluorine-assisted strategy.
• To investigate the effect of fluorine on the morphology and electrocatalytic performance of FeCoNi nanohybrids for OER.

Main Methods:

• Facial synthesis of FeCoNi nanohybrids with controlled morphology.
• Electrochemical characterization of the synthesized catalysts in 1 M KOH.
• Performance evaluation for the oxygen evolution reaction (OER).

Main Results:

• Fluorine incorporation tunable morphology and enhanced electrocatalytic activity.
• The optimized FeCoNi nanohybrid exhibited a lower overpotential than commercial RuO2 for OER.
• The catalysts demonstrated low Tafel slopes and excellent long-term stability.

Conclusions:

• Fluorine-modulated FeCoNi nanohybrids represent highly active and durable electrocatalysts for the oxygen evolution reaction.
• This approach offers a promising pathway for advancing water splitting technologies for renewable energy production.