Impacts of operating conditions on the effects of chloride contamination on PEM fuel cell performance and durability

Download
  1. Get@NRC: Impacts of operating conditions on the effects of chloride contamination on PEM fuel cell performance and durability (Opens in a new window)
DOIResolve DOI: http://doi.org/10.1016/j.jpowsour.2012.07.003
AuthorSearch for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for:
TypeArticle
Journal titleJournal of Power Sources
ISSN0378-7753
Volume218
Pages375382
SubjectCharge transfer; Chloride contamination; Electrochemical surface area; Mass transfer; PEM fuel cells
AbstractChloride contaminated fuel and/or air streams in an operating proton exchange membrane fuel cell can cause significant adverse effects on fuel cell performance and durability. This paper reports investigations of chloride contamination effects on PEM fuel cell performance and durability under a wide range of operating conditions, using various in-situ diagnostic measurements. Increases in current density and Cl− concentration as well as decreases in fuel cell RH were found to enlarge the severity of the chloride contamination effect. Temperature was also found to have a significant influence on the contamination effect. Electrochemical impedance spectroscopy was used as a diagnostic tool during the contamination tests to explore changes in cell component resistances. The results indicated that chloride contamination causes predominantly an increase in charge transfer resistance as well as an increase in mass transfer resistance. The membrane resistance was not found to be impacted by chloride contamination. As measured by cyclic voltammetry, the presence of chloride in the air stream significantly reduced the cathode electrochemical surface area, and this reduction is believed to be due to the adsorption of chloride on the Pt surface causing active site blockage and accelerated Pt dissolution and agglomeration via the formation of Pt–Cl complexes.
Publication date
LanguageEnglish
AffiliationEnergy, Mining and Environment; National Research Council Canada
Peer reviewedYes
IdentifierS0378775312011172
NPARC number21268802
Export citationExport as RIS
Report a correctionReport a correction
Record identifieref813b85-e04d-49b1-ba7b-c0c1481ed72e
Record created2013-11-13
Record modified2016-05-09
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)