A surface-modified antiperovskite as an electrocatalyst for water oxidation

Area of Science:

• Materials Science
• Electrochemistry
• Catalysis

Background:

• Efficient electrocatalysts are crucial for electrochemical energy generation and storage.
• Developing cost-effective and high-performance catalysts for the oxygen evolution reaction (OER) remains a significant challenge.

Purpose of the Study:

• To design and synthesize a novel antiperovskite-based hybrid material for efficient water oxidation.
• To investigate the catalytic performance of the hybrid material in alkaline environments.

Main Methods:

• Rational design and in situ formation of a core-shell hybrid catalyst.
• Characterization of the antiperovskite-based hybrid with porous conductive Cu1-xNNi3-y core and amorphous FeNiCu (oxy)hydroxide shell.
• Electrochemical evaluation of the catalyst for oxygen evolution reaction (OER) in alkaline media.

Main Results:

• The hybrid catalyst exhibited outstanding OER performance.
• The core-shell structure, synergistic effects of Fe, Ni, and Cu, and porous hierarchical structure contributed to high efficiency and robustness.
• The catalyst outperformed the benchmark IrO2 catalyst in several aspects.

Conclusions:

• The antiperovskite-based hybrid material is a promising electrocatalyst for water oxidation.
• The findings highlight the potential of antiperovskite materials in electrocatalysis.
• This work may inspire the development of novel materials for energy generation and storage applications.