{"title":"Performance of a PEM fuel cell cathode catalyst layer under oscillating potential and oxygen supply","authors":"Andrei Kulikovsky","doi":"10.1016/j.elecom.2023.107655","DOIUrl":null,"url":null,"abstract":"<div><p>A model for impedance of a PEM fuel cell cathode catalyst layer under simultaneous application of potential and oxygen concentration harmonic perturbations is solved. The solution demonstrates strong lowering of the layer impedance under increase in the amplitude of oxygen concentration perturbation. Small in–phase oscillations of the overpotential and oxygen concentration lead to formation of a sub–layer with negligible oxygen transport loss. Working as an ideal non–polarizable electrode, this sub–layer dramatically reduces the system impedance.</p></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":null,"pages":null},"PeriodicalIF":4.7000,"publicationDate":"2023-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1388248123002308/pdfft?md5=238f7db55bf70cf2b8f34ff3e8833db4&pid=1-s2.0-S1388248123002308-main.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Electrochemistry Communications","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1388248123002308","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ELECTROCHEMISTRY","Score":null,"Total":0}
引用次数: 0
Abstract
A model for impedance of a PEM fuel cell cathode catalyst layer under simultaneous application of potential and oxygen concentration harmonic perturbations is solved. The solution demonstrates strong lowering of the layer impedance under increase in the amplitude of oxygen concentration perturbation. Small in–phase oscillations of the overpotential and oxygen concentration lead to formation of a sub–layer with negligible oxygen transport loss. Working as an ideal non–polarizable electrode, this sub–layer dramatically reduces the system impedance.
期刊介绍：
Electrochemistry Communications is an open access journal providing fast dissemination of short communications, full communications and mini reviews covering the whole field of electrochemistry which merit urgent publication. Short communications are limited to a maximum of 20,000 characters (including spaces) while full communications and mini reviews are limited to 25,000 characters (including spaces). Supplementary information is permitted for full communications and mini reviews but not for short communications. We aim to be the fastest journal in electrochemistry for these types of papers.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
