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Improved Performance of NiCoFe-LDH Electrocatalyst by Synthesizing on NiCo2O4 with Ni Foam for Effective Oxygen Evolution Reaction

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Abstract:

In water splitting, high-performance electrocatalysts play an essential role in the oxygen evolution reaction (OER). This study focuses on preparing nanoflower-structured electrocatalysts by coating different amounts of Ni in NiCoFe double hydroxide (LDH) onto the NiCo2O4 surface on Ni foam (NF) using a hydrothermal method. The NiCoFe-LDH@NiCo2O4/NF electrocatalyst demonstrates excellent activity for OER, exhibiting low overpotential and good stability. The exceptional performance is attributed to the high electrochemically active surface area of ​​NiCoFe-LDH when combined with NiCo2O4. The optimal Ni0.75CoFe-LDH@NiCo2O4/NF electrocatalyst demonstrates exceptional oxygen evolution reaction (OER) performance, with a low overpotential of 254mV at a current density of 50mA·cm−2. It also shows excellent durability, with minimal overshot during overall water splitting stability tests. This study suggests developing highly efficient OER catalysts using ternary transition metals in the future.

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Periodical:

Solid State Phenomena (Volume 379)

Pages:

31-37

DOI:

https://doi.org/10.4028/p-X78uUg

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Online since:

November 2025

Authors:

Tan Dao Duy*, Trang Nakamoto, Kozo Taguchi

Keywords:

Layered Double Hydroxide Materials, NiCoFe-LDH@NiCo2O4/ Nf Electrocatalysts, OER Electrocatalysts

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© 2025 Trans Tech Publications Ltd. All Rights Reserved

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* - Corresponding Author

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