电化学（中英文）2026，Vol.32Issue(1)：42-64,23.DOI:10.61558/2993-074X.3578
原位/工况穆斯堡尔谱视角下的铁基氧还原反应电催化剂
Iron-Involved ORR Electrocatalysts under the Lens of In-Situ/Operando Mössbauer Spectroscopy
摘要
Abstract
Exploring cost-effective and efficient catalysts for oxygen reduction reaction(ORR)poses a significant challenge,espe-cially in the pursuit of alternatives to precious metals like platinum.Significant advancements have driven electrochem-ists to develop efficient ORR catalysts using abundant materials,particularly iron(Fe)-based,known for their exceptional performance in ORR.While the crucial function of Fe in boosting ORR catalytic activity is recognized,the connection between material attributes and catalytic performance remains enigmatic.Understanding the dynamic processes involved in oxygen electrocatalysis is paramount for designing precious-metals-free ORR electrocatalysts.Mössbauer spectroscopy stands out as a powerful technique for deciphering the structural characteristics of Fe species in catalysis,facilitating the identification of active sites and the clarification of catalytic mechanisms.By showcasing noteworthy case studies within this review,we demonstrate the application of in-situ/operando 57Fe Mössbauer spectroscopy across diverse Fe-involved materials in ORR catalysis.This sheds light on various aspects of ORR catalysis,such as identifying active sites,assessing stability,and understanding the reaction mechanism.Our inquiry drives towards the opportunities and hurdles associ-ated with Mössbauer spectroscopy,unveiling potential breakthroughs and avenues for enhancement within this pivotal research realm.关键词
铁基电催化剂/原位/工况表征/穆斯堡尔谱/氧还原反应/构效关系Key words
Iron-based electrocatalyst/In-situ/operando analysis/Mössbauer spectroscopy/Oxygen reduction reaction/Structure-activity relationship引用本文复制引用
Sumbal Farid,王军虎..原位/工况穆斯堡尔谱视角下的铁基氧还原反应电催化剂[J].电化学（中英文）,2026,32(1):42-64,23.基金项目
This work was financially supported by the Nation-al Natural Science Foundation of China(22350410386,W2412116,22375200,U22A202175,21961142006). （22350410386,W2412116,22375200,U22A202175,21961142006）
