Issue 42, 2019

Low-temperature synthesis of small-sized high-entropy oxides for water oxidation

Abstract

High entropy materials (HEMs) are attracting significant attention due to their unique structure and unprecedented application potential in many fields. Herein, a novel low temperature strategy for preparing high entropy (Co, Cu, Fe, Mn, Ni)3O4 oxides with a single-phase, the Fd[3 with combining macron]m spinel structure, is developed via solvothermal synthesis followed by annealing. This is the first time that high entropy oxides were fabricated successfully at low temperature. The as-prepared high entropy oxides possess five highly dispersed metal species, and the average particle size is approximately 5 nm, which is the smallest nanometer size of the high entropy oxides that has been reported so far. By considering their unique physical and chemical properties, the resultant high entropy oxides exhibit an excellent performance for water oxidation. Hence, this work provides a new synthetic strategy for high entropy oxides to solve the bottlenecks encountered by traditional methods and broaden their application areas.

Graphical abstract: Low-temperature synthesis of small-sized high-entropy oxides for water oxidation

Supplementary files

Article information

Article type
Communication
Submitted
10 Aug 2019
Accepted
07 Oct 2019
First published
08 Oct 2019

J. Mater. Chem. A, 2019,7, 24211-24216

Low-temperature synthesis of small-sized high-entropy oxides for water oxidation

D. Wang, Z. Liu, S. Du, Y. Zhang, H. Li, Z. Xiao, W. Chen, R. Chen, Y. Wang, Y. Zou and S. Wang, J. Mater. Chem. A, 2019, 7, 24211 DOI: 10.1039/C9TA08740K

To request permission to reproduce material from this article, 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 publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements