| DOI | Trouver le DOI : https://doi.org/10.1016/j.jpowsour.2011.04.018 |
|---|
| Auteur | Rechercher : Li, H.1; Rechercher : Wang, H.1; Rechercher : Qian, W.1; Rechercher : Zhang, S.1; Rechercher : Wessel, S.; Rechercher : Cheng, T.T.H.; Rechercher : Shen, J.1; Rechercher : Wu, S.1 |
|---|
| Affiliation | - Conseil national de recherches du Canada. Institut d'innovation en piles à combustible du CNRC
|
|---|
| Format | Texte, Article |
|---|
| Sujet | Active site; Air streams; Cell performance; Cell voltages; Charge transfer resistance; Chlor-alkali industry; Chloride contamination; Chlorine contamination; Electrochemical catalyst; Electrode kinetics; Ex situ; Fuel cell application; Fuel cell performance; Fuel stream; In-situ; PEM fuel cell; Proton exchange membranes; Catalyst activity; Charge transfer; Chlorine; Chlorine compounds; Contamination; Dissolution; Drops; Durability; Impurities; Ion exchange; Platinum; Proton exchange membrane fuel cells (PEMFC); Protons; River pollution |
|---|
| Résumé | Chlorine is a major fuel contaminant when by-product hydrogen from the chlor-alkali industry is used as the fuel for proton exchange membrane (PEM) fuel cells. Understanding the effects of chlorine contamination on fuel cell performance and durability is essential to address fuel cell applications for the automotive and stationary markets. This paper reports our findings of chloride contamination effects on PEM fuel cell performance and durability, as our first step in understanding the effects of chlorine contamination. Fuel cell contamination tests were conducted by injecting ppm levels of contaminant into the fuel cell from either the fuel stream or the air stream. In situ and ex situ diagnosis were performed to investigate the contamination mechanisms. The results show that cell voltage during chloride contamination is characterized by an initial sudden drop followed by a plateau, regardless of which side the contaminant is introduced into the fuel cell. The drop in cell performance is predominantly due to increased cathode charge transfer resistance as a result of electrochemical catalyst surface area (ECSA) loss attributable to the blocking of active sites by Cl- and enhanced Pt dissolution. © 2011 Elsevier B.V. All rights reserved. |
|---|
| Date de publication | 2011 |
|---|
| Dans | |
|---|
| Langue | anglais |
|---|
| Publications évaluées par des pairs | Oui |
|---|
| Numéro NPARC | 21271401 |
|---|
| Exporter la notice | Exporter en format RIS |
|---|
| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
|---|
| Identificateur de l’enregistrement | 18a0d3dd-39f5-4dc4-b64d-0f7b44543cf1 |
|---|
| Enregistrement créé | 2014-03-24 |
|---|
| Enregistrement modifié | 2020-04-21 |
|---|
