Issue 15, 2024

Synergistic coupling of defective SOx-containing carbon and iron phthalocyanine for efficient oxygen reduction

Abstract

Iron phthalocyanine (FePc) has emerged as a viable non-precious metal catalyst for the oxygen reduction reaction (ORR), offering a potential substitute for costly precious metals. However, fine-tuning its electronic structure to optimize intermediate adsorption remains a challenge. In this study, we report a significant enhancement of the ORR catalytic activity of FePc through a synergistic interaction with a defective SOx-enriched carbon substrate. Our experimental and theoretical investigations reveal that the introduction of SOx groups via ultrasonication effectively modifies the electronic configuration of the Fe–N4 center, facilitating the desorption of OH* intermediates. The resulting U-FePc@DSNC catalyst exhibits exceptional catalytic activity and stability in alkaline media, achieving a remarkable half-wave potential (E1/2) of 0.93 V. This approach offers a promising strategy for precise modulation of the adsorption properties of Fe-based active centers, paving the way for the development of highly efficient and cost-effective ORR catalysts.

Graphical abstract: Synergistic coupling of defective SOx-containing carbon and iron phthalocyanine for efficient oxygen reduction

Supplementary files

Article information

Article type
Research Article
Submitted
13 May 2024
Accepted
16 Jun 2024
First published
17 Jun 2024

Inorg. Chem. Front., 2024,11, 4638-4646

Synergistic coupling of defective SOx-containing carbon and iron phthalocyanine for efficient oxygen reduction

Y. Cao, Y. Zhao, Y. Zhang, K. Zhu, X. Wang, G. Li, Q. Zhang and Z. Bai, Inorg. Chem. Front., 2024, 11, 4638 DOI: 10.1039/D4QI01190B

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