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Spinel oxide CoFe₂O₄ grown on Ni foam as an efficient electrocatalyst for oxygen evolution reaction.

ABSTRACT: The effect of the oxygen evolution reaction (OER) is important in water splitting. In this work, we develop sphere-like morphology spinel oxide CoFe₂O₄/NF by hydrothermal reaction and calcination, and the diameter of the spheres is about 111.1 nm. The CoFe₂O₄/NF catalyst exhibits excellent electrocatalytic performance with an overpotential of 273 mV at a current density of 10 mA cm^-2 and a Tafel slope of 78 mV dec^-1. The cycling stability of CoFe₂O₄/NF is remarkable, and it only increased by 5 mV at a current density of 100 mA cm^-2 after 3000 cycles. Therefore, this simple method to prepare CoFe₂O₄/NF can enhance the OER properties of electrocatalysts, which makes CoFe₂O₄/NF a promising material to replace noble metal-based catalysts for the oxygen evolution reaction.

SUBMITTER: Zhu S

PROVIDER: S-EPMC9063757 | biostudies-literature | 2019 Apr

REPOSITORIES: biostudies-literature

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Spinel oxide CoFe2O4 grown on Ni foam as an efficient electrocatalyst for oxygen evolution reaction.

Zhu Shasha S Lei Jinglei J Qin Yonghan Y Zhang Lina L Lu Lijuan L

RSC advances 20190430 23

The effect of the oxygen evolution reaction (OER) is important in water splitting. In this work, we develop sphere-like morphology spinel oxide CoFe2O4/NF by hydrothermal reaction and calcination, and the diameter of the spheres is about 111.1 nm. The CoFe2O4/NF catalyst exhibits excellent electrocatalytic performance with an overpotential of 273 mV at a current density of 10 mA cm-2 and a Tafel slope of 78 mV dec-1. The cycling s ...[more]

PMID: 35520770

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