Issue 10, 2020

Control of transition metal–oxygen bond strength boosts the redox ex-solution in a perovskite oxide surface

Abstract

We demonstrate theoretically and experimentally that engineering of cation–oxygen bond strength in a perovskite structure can control redox ex-solution of B-site metals and thus the formation of metal nanoparticles at the oxide surface upon high-temperature reduction. In particular, we show that large isovalent doping significantly promotes the B-site ex-solution via tuning of the cation–oxygen bond strength, leading to high catalytic activity of CO oxidation. This method to promote ex-solution can be readily applied to various heterogeneous catalysts.

Graphical abstract: Control of transition metal–oxygen bond strength boosts the redox ex-solution in a perovskite oxide surface

Supplementary files

Article information

Article type
Communication
Submitted
19 févr. 2020
Accepted
02 juin 2020
First published
02 juin 2020

Energy Environ. Sci., 2020,13, 3404-3411

Control of transition metal–oxygen bond strength boosts the redox ex-solution in a perovskite oxide surface

K. Kim, B. Koo, Y. Jo, S. Lee, J. K. Kim, B. Kim, W. Jung and J. W. Han, Energy Environ. Sci., 2020, 13, 3404 DOI: 10.1039/D0EE01308K

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