Mechanistic study of structural regulation and enhanced oxygen reduction performance in La 0.5 Sr 1.5 FeO 4+ δ cathodes via Mg doping

RSC Advances 2026 Open access

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Authors: Yanpeng Liu, Songbo Li, Shengli An, Hongli Qiao, Yuanyaun Ma, Xu Jia, Jing Zhang, Xi Zhang, Jianlin Zhao
DOI: 10.1039/d6ra03050e
Cited by: 1
References: 31

Abstract

, representing a 36% increase over the undoped sample, and also exhibited excellent long-term operational stability. Combined distribution of relaxation times (DRT) analysis and first-principles calculations further revealed that Mg doping improves the reversibility of oxygen migration pathways and lowers the oxygen dissociation energy barrier, thereby enhancing interfacial oxygen transport and surface exchange kinetics. These results provide an effective strategy and deeper theoretical insight for designing high-performance, highly stable SOFC cathodes through cation doping.

Fields of Study & Subjects

Advancements in Solid Oxide Fuel Cells Electrocatalysts for Energy Conversion Molten salt chemistry and electrochemical processes

Publication details

Journal / source
RSC Advances
Publisher
Royal Society of Chemistry (RSC)
Volume
16
Issue
30
Pages
27837–27846
Publication date
1 January 2026
Language
EN