EIS-assisted performance analysis of non-noble metal electrocatalyst (Fe–N/C)-based PEM fuel cells in the temperature range of 23–80 °C

DOI	Trouver le DOI : https://doi.org/10.1016/j.electacta.2008.10.006
Auteur	Rechercher : Zhang, Jianlu¹; Rechercher : Zhang, Lei¹Identifiant ORCID : https://orcid.org/0000-0002-1823-2948; Rechercher : Bezerra, Cicero W. B.¹; Rechercher : Li, Hui¹; Rechercher : Xia, Zetao¹; Rechercher : Zhang, Jiujun¹; Rechercher : Marques, Aldaléa L. B.; Rechercher : Marques, Edmar P.
Affiliation	Conseil national de recherches Canada. Institut d'innovation en piles à combustible du CNRC
Format	Texte, Article
Sujet	PEM fuel cells; non-noble metal (carbon-supported iron–nitrogen) catalyst; AC impedance/electrochemical impedance spectroscopy (EIS); oxygen reduction reaction (ORR); exchange current density
Résumé	A carbon-supported non-noble metal catalyst, Fe–N/C, was used as the cathode catalyst to construct membrane electrolyte assemblies (MEAs) for a proton exchange membrane (PEM) fuel cell. The performance of such a fuel cell was then tested and diagnosed using electrochemical impedance spectroscopy (EIS) in the temperature range of 23–80 °C. Based on the EIS measurements, individual resistances, such as charger transfer resistance and membrane resistance, were obtained and used to simulate polarization curves (current–voltage (I–V) curves). A close agreement between the simulated I–V curves and the measured curves demonstrates consistency between the polarization and EIS data. The temperature-dependent parameters obtained via EIS, such as apparent exchange current densities and electrolyte membrane conductivities, were also used to acquire activation energies for both the oxygen reduction reaction (ORR) catalyzed by an Fe–N/C catalyst and the proton transport process across the electrolyte membrane. In addition, the maximum power densities for such a fuel cell were also analyzed.
Date de publication	2008-10-18
Maison d’édition	Elsevier
Dans	Electrochimica Acta 54, nº 6 (15 février 2009) : 1737–1743.
Langue	anglais
Publications évaluées par des pairs	Oui
Numéro NPARC	9722772
Exporter la notice	Exporter en format RIS
Signaler une correction	Signaler une correction (s'ouvre dans un nouvel onglet)
Identificateur de l’enregistrement	11e70046-fb2e-432b-8786-9aa1f7d7c5a8
Enregistrement créé	2009-07-17
Enregistrement modifié	2024-02-13

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Date de modification :: 2026-04-18