Issue 24, 2023

Axial optimization of biomimetic nanoenzyme catalysts applied to oxygen reduction reactions

Abstract

Inspired by the bio-oxygen oxidation/reduction processes of hemoglobin, iron-based transition metal-like enzyme catalysts have been explored as oxygen reduction reaction (ORR) electrocatalysts. We synthesized a chlorine-coordinated monatomic iron material (FeN4Cl-SAzyme) via a high temperature pyrolysis method as a catalyst for the ORR. The half-wave potential (E1/2) was 0.885 V, which exceeded those of Pt/C and the other FeN4X-SAzyme (X = F, Br, I) catalysts. Furthermore, through density functional theory (DFT) calculations, we systematically explored the better performance reason of FeN4Cl-SAzyme. This work offers a promising approach toward high-performance single atom electrocatalysts.

Graphical abstract: Axial optimization of biomimetic nanoenzyme catalysts applied to oxygen reduction reactions

Supplementary files

Article information

Article type
Communication
Submitted
16 Nov. 2022
Accepted
13 Febr. 2023
First published
21 Febr. 2023

Chem. Commun., 2023,59, 3550-3553

Axial optimization of biomimetic nanoenzyme catalysts applied to oxygen reduction reactions

J. Liu, J. Jia, H. Wen, S. Li, Y. Wu, Q. Wang, Z. Kan, Y. Li, X. Wu, J. Zhao, S. Liu and B. Li, Chem. Commun., 2023, 59, 3550 DOI: 10.1039/D2CC06197J

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