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dc.contributor.authorBriskeby, Stein Trygve
dc.contributor.authorTsypkin, Mikhail
dc.contributor.authorTunold, Reidar
dc.contributor.authorSunde, Svein
dc.date.accessioned2017-11-06T15:16:55Z
dc.date.available2017-11-06T15:16:55Z
dc.date.created2014-04-02T11:37:13Z
dc.date.issued2014
dc.identifier.citationJournal of Power Sources. 2014, 251 1-7.nb_NO
dc.identifier.issn0378-7753
dc.identifier.urihttp://hdl.handle.net/11250/2464355
dc.description.abstractThe effect of chloride on the stability of platinum electrocatalysts was studied by rotating disk measurements in sulfuric acid electrolyte with a continuously increasing concentration of chloride anions. The activity towards oxygen reduction was found to be reduced by a factor of seven when 140 ppm chloride was present. Platinum corrosion was severe at high potentials, presumably accelerated by potential cycling, and greatly enhanced by mass transport. A five-fold increase in corrosion rate was found when the electrode was rotated at 1600 rpm with respect to stagnant conditions. At potentials where oxygen reduction occurs, dissolved Pt can be redeposited on the electrode. The Pt dissolution rate increased with increasing Cl− concentration up to 20 ppm. Above this threshold the corrosion rate was unaffected by increases in Cl− content.nb_NO
dc.language.isoengnb_NO
dc.publisherElseviernb_NO
dc.titleStability of carbon nanofibre-supported platinum catalysts in the presence of chloride under controlled mass-transfer conditionsnb_NO
dc.typeJournal articlenb_NO
dc.description.versionsubmittedVersionnb_NO
dc.source.pagenumber1-7nb_NO
dc.source.volume251nb_NO
dc.source.journalJournal of Power Sourcesnb_NO
dc.identifier.doi10.1016/j.jpowsour.2013.10.148
dc.identifier.cristin1126611
dc.description.localcodeThis is a submitted manuscript of an article published by Elsevier Ltd in Journal of Power Sources, 21 November 2013.nb_NO
cristin.unitcode194,66,35,0
cristin.unitnameInstitutt for materialteknologi
cristin.ispublishedtrue
cristin.fulltextpostprint
cristin.qualitycode1


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