Effect of operating backpressure on PEM fuel cell performance

DOI	Trouver le DOI : https://doi.org/10.1149/1.3271363
Auteur	Rechercher : Zhang, Jianlu¹; Rechercher : Li, Hui¹; Rechercher : Zhang, Jiujun¹
Affiliation	Conseil national de recherches Canada. Institut d'innovation en piles à combustible du CNRC
Format	Texte, Article
Conférence	215th ECS Meeting, May 24-29, 2009, San Francisco, CA, USA
Résumé	In this paper, the effects of operating backpressure on PEM fuel cell performance were studied at 70 ºC, 100% RH, and backpressures ranging from 1.00 to 3.04 atm. AC impedance spectroscopy and cyclic voltammetry were employed to diagnose the backpressure effects. It was observed that increasing operating backpressure could improve fuel cell performance by enhancing the fuel cell thermodynamics, increasing the exchange current densities of the reactions, accelerating the electrode kinetics, and improving the mass transfer process. However, some negative effects, such as increased H2 crossover rate and membrane resistance, were also observed.
Date de publication	2009
Maison d’édition	Electrochemical Society
Dans	ECS Transactions 19, nº 31 : 65–76.
Langue	anglais
Publications évaluées par des pairs	Oui
Numéro NPARC	23004764
Exporter la notice	Exporter en format RIS
Signaler une correction	Signaler une correction (s'ouvre dans un nouvel onglet)
Identificateur de l’enregistrement	55f2ffcc-567d-45ec-ba58-80888d968481
Enregistrement créé	2018-12-18
Enregistrement modifié	2020-04-16

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