High-entropy spinel (FeCoNiMnCr)3O4 nanoparticles supported on carbon nanotubes for enhanced electrochemical seawater oxidation

Abstract

High-performance, low-cost electrocatalysts are essential for freshwater-independent seawater electrolysis. We design a SWCNT-supported (FeCoNiMnCr)3O4 high-entropy spinel oxide by a hydrothermal method and air-firing, where the conductive network enhances charge transfer and active site exposure. The catalyst achieves 282 mV@10 mA cm−2 with 100 h stability in alkaline seawater. This work provides a new strategy for electrolysis of high entropy spinel oxides in seawater.

Graphical abstract: High-entropy spinel (FeCoNiMnCr)3O4 nanoparticles supported on carbon nanotubes for enhanced electrochemical seawater oxidation

Supplementary files

Article information

Article type
Communication
Submitted
08 Jul 2025
Accepted
02 Sep 2025
First published
10 Sep 2025

Chem. Commun., 2025, Advance Article

High-entropy spinel (FeCoNiMnCr)3O4 nanoparticles supported on carbon nanotubes for enhanced electrochemical seawater oxidation

B. Du, J. Zeng, R. Tang, Y. Li, Q. Hao, F. Wang, L. Liang and H. Liu, Chem. Commun., 2025, Advance Article , DOI: 10.1039/D5CC03852A

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