Issue 4, 2024

Fabrication of nanocrystalline high-entropy oxide CoNiFeCrMnOx thin film electrodes by dip-coating for oxygen evolution electrocatalysis

Abstract

The variation of calcination conditions allows for adjusting the oxidation states and coordination sites of near-surface elements in sol–gel-derived high-entropy oxides. Optimized synthesis conditions resulted in fabrication of nanocrystalline CoNiFeCrMnOx thin films with 1–2 nm pores, showing low OER overpotentials of 258 mV VS. RHE at 10 mA cm−2.

Graphical abstract: Fabrication of nanocrystalline high-entropy oxide CoNiFeCrMnOx thin film electrodes by dip-coating for oxygen evolution electrocatalysis

Supplementary files

Article information

Article type
Communication
Submitted
13 1 2024
Accepted
17 3 2024
First published
25 3 2024
This article is Open Access
Creative Commons BY-NC license

Energy Adv., 2024,3, 765-773

Fabrication of nanocrystalline high-entropy oxide CoNiFeCrMnOx thin film electrodes by dip-coating for oxygen evolution electrocatalysis

Q. Wu, A. Alkemper, S. Lauterbach, J. P. Hofmann and M. Einert, Energy Adv., 2024, 3, 765 DOI: 10.1039/D4YA00026A

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