Issue 62, 2021, Issue in Progress

(La0.65Sr0.3)0.95FeO3−δ perovskite with high oxygen vacancy as efficient bifunctional electrocatalysts for Zn–air batteries

Abstract

Developing low-cost, highly efficient electrocatalysts for the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) is desirable for rechargeable metal–air batteries. Herein, a series of perovskite structured (La0.65Sr0.3)0.95FeO3−δ catalysts with A-site deficiency were synthesized through a scalable solid state synthesis method at different calcination temperatures. The electrocatalytic activities of these catalysts were investigated by thin-film RDE technique. The catalyst calcined at 1000 °C exhibits an outstanding bi-functional activity towards the ORR and OER in alkaline electrolyte, and it also exhibits an outstanding performance in primary and rechargeable Zn–air batteries, which is comparable with the commercial noble metals Pt/C and RuO2.

Graphical abstract: (La0.65Sr0.3)0.95FeO3−δ perovskite with high oxygen vacancy as efficient bifunctional electrocatalysts for Zn–air batteries

Supplementary files

Article information

Article type
Paper
Submitted
27 Oct 2021
Accepted
01 Dec 2021
First published
06 Dec 2021
This article is Open Access
Creative Commons BY license

RSC Adv., 2021,11, 38977-38981

(La0.65Sr0.3)0.95FeO3−δ perovskite with high oxygen vacancy as efficient bifunctional electrocatalysts for Zn–air batteries

L. Luo, Z. Liu and Z. Wang, RSC Adv., 2021, 11, 38977 DOI: 10.1039/D1RA07920D

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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