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

Qingyang Wu; Achim Alkemper; Stefan Lauterbach; Jan P. Hofmann; Marcus Einert

doi:10.1039/D4YA00026A

You do not have JavaScript enabled. Please enable JavaScript to access the full features of the site or access our non-JavaScript page.

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

Qingyang Wu,^a Achim Alkemper,

^a Stefan Lauterbach,^b Jan P. Hofmann

^a and Marcus Einert

*^a

Author affiliations

* Corresponding authors

^a Surface Science Laboratory, Department of Materials and Earth Sciences, Technical University of Darmstadt, Otto-Berndt-Strasse 3, 64287 Darmstadt, Germany
E-mail: meinert@surface.tu-darmstadt.de

^b Institute for Applied Geosciences, Geomaterial Science, Technical University of Darmstadt, Schnittspahnstrasse 9, 64287 Darmstadt, Germany

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 CoNiFeCrMnO_x thin films with 1–2 nm pores, showing low OER overpotentials of 258 mV VS. RHE at 10 mA cm⁻².

This article is part of the themed collections: Research advancing UN SDG 13: Climate Action, Research advancing UN SDG 12: Responsible consumption and production and Research advancing UN SDG 7: Affordable and clean energy

Download options Please wait...

Supplementary files

Supplementary information PDF (2402K)

Article information

DOI: https://doi.org/10.1039/D4YA00026A
Article type: Communication
Submitted: 13 Qun 2024
Accepted: 17 Cig 2024
First published: 25 Cig 2024
This article is Open Access

Download Citation

Energy Adv., 2024,3, 765-773

Permissions

Request permissions

Fabrication of nanocrystalline high-entropy oxide CoNiFeCrMnO_x 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

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. You can use material from this article in other publications, without requesting further permission from the RSC, provided that the correct acknowledgement is given and it is not used for commercial purposes.

To request permission to reproduce material from this article in a commercial publication, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party commercial publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Social activity

Fetching data from CrossRef.
This may take some time to load.

Energy Advances