000192751 001__ 192751
000192751 005__ 20250730144929.0
000192751 0247_ $$2doi$$a10.1039/c4cp00192c
000192751 0247_ $$2ISSN$$a1463-9076
000192751 0247_ $$2ISSN$$a1463-9084
000192751 0247_ $$2WOS$$aWOS:000338116700012
000192751 0247_ $$2pmid$$apmid:24664398
000192751 0247_ $$2altmetric$$aaltmetric:2236451
000192751 0247_ $$2openalex$$aopenalex:W2044191369
000192751 037__ $$aPUBDB-2014-04280
000192751 082__ $$a540
000192751 1001_ $$0P:(DE-HGF)0$$aRamaker, D. E.$$b0$$eCorresponding Author
000192751 245__ $$aFollowing ORR intermediates adsorbed on a Pt cathode catalyst during break-in of a PEM fuel cell by in operando X-ray absorption spectroscopy
000192751 260__ $$aCambridge$$bRSC Publ.$$c2014
000192751 3367_ $$00$$2EndNote$$aJournal Article
000192751 3367_ $$2DRIVER$$aarticle
000192751 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1417522176_12038
000192751 3367_ $$2BibTeX$$aARTICLE
000192751 500__ $$a(c) the Owner Societies. Code P.
000192751 520__ $$aIn operando X-ray absorption spectroscopy data using the Δμ X-ray Absorption Near Edge Spectroscopy (XANES) analysis procedure is used to follow the ORR intermediate adsorbate coverage on a working catalyst in a PEMFC during initial activation and break-in. The adsorbate coverage and log i (Tafel) curves reveal a strong correlation, i.e., an increase in adsorbate intermediate coverage poisons Pt sites thereby decreasing the current. A decrease in Pt–O bond strength commensurate with decrease in potential causes a sequence of different dominant adsorbate volcano curves to exist, namely first O, then OH, and then OOH exactly as predicted by the different ORR kinetics mechanisms. During break-in, the incipient O coverage coming from exposure to air during storage and MEA preparation is rather quickly removed, compared to the slower and more subtle nanoparticle morphological changes, such as the rounding of the Pt nanoparticle edges/corners and smoothing of the planar surfaces, driven by the nanoparticle's tendency to lower its surface energy. These morphological changes increase the Pt–Pt average coordination number, decrease the average Pt–O bond strength, and thereby decrease the coverage of ORR intermediates, allowing increase in the current.
000192751 536__ $$0G:(DE-H253)POF2-X1-20130405$$aDORIS Beamline X1 (POF2-54G13)$$cPOF2-54G13$$fPOF II$$x0
000192751 588__ $$aDataset connected to CrossRef, bib-pubdb1.desy.de
000192751 693__ $$0EXP:(DE-H253)D-X1-20150101$$1EXP:(DE-H253)DORISIII-20150101$$6EXP:(DE-H253)D-X1-20150101$$aDORIS III$$fDORIS Beamline X1$$x0
000192751 7001_ $$0P:(DE-H253)PIP1008885$$aKorovina, A.$$b1
000192751 7001_ $$0P:(DE-H253)PIP1009485$$aCroze, V.$$b2
000192751 7001_ $$0P:(DE-H253)PIP1008369$$aMelke, J.$$b3
000192751 7001_ $$0P:(DE-H253)PIP1008104$$aRoth, C.$$b4
000192751 773__ $$0PERI:(DE-600)1476244-4$$a10.1039/c4cp00192c$$gVol. 16, no. 27, p. 13645 -$$n27$$p13645 - 13653$$tPhysical chemistry, chemical physics$$v16$$x1463-9084$$y2014
000192751 8564_ $$yRestricted
000192751 8564_ $$uhttps://bib-pubdb1.desy.de/record/192751/files/PCCP%20Koper%20revised%203%20chg%20accepted.pdf$$yPublished on 2014-03-14. Available in OpenAccess from 2015-03-14.
000192751 8564_ $$uhttps://bib-pubdb1.desy.de/record/192751/files/PUBDB-2014-04280.pdf$$yRestricted
000192751 8564_ $$uhttps://bib-pubdb1.desy.de/record/192751/files/PCCP%20Koper%20revised%203%20chg%20accepted.gif?subformat=icon$$xicon
000192751 8564_ $$uhttps://bib-pubdb1.desy.de/record/192751/files/PCCP%20Koper%20revised%203%20chg%20accepted.jpg?subformat=icon-180$$xicon-180
000192751 8564_ $$uhttps://bib-pubdb1.desy.de/record/192751/files/PCCP%20Koper%20revised%203%20chg%20accepted.jpg?subformat=icon-700$$xicon-700
000192751 8564_ $$uhttps://bib-pubdb1.desy.de/record/192751/files/PCCP%20Koper%20revised%203%20chg%20accepted.pdf?subformat=pdfa$$xpdfa
000192751 8564_ $$uhttps://bib-pubdb1.desy.de/record/192751/files/PCCP%20Koper%20revised%203%20chg%20accepted.jpg?subformat=icon-1440$$xicon-1440
000192751 8564_ $$uhttps://bib-pubdb1.desy.de/record/192751/files/PCCP%20Koper%20revised%203%20chg%20accepted.jpg?subformat=icon-640$$xicon-640
000192751 8564_ $$uhttps://bib-pubdb1.desy.de/record/192751/files/PUBDB-2014-04280.jpg?subformat=icon-1440$$xicon-1440
000192751 8564_ $$uhttps://bib-pubdb1.desy.de/record/192751/files/PUBDB-2014-04280.jpg?subformat=icon-180$$xicon-180
000192751 8564_ $$uhttps://bib-pubdb1.desy.de/record/192751/files/PUBDB-2014-04280.jpg?subformat=icon-640$$xicon-640
000192751 909CO $$ooai:bib-pubdb1.desy.de:192751$$pVDB
000192751 915__ $$0StatID:(DE-HGF)0100$$2StatID$$aJCR
000192751 915__ $$0StatID:(DE-HGF)0110$$2StatID$$aWoS$$bScience Citation Index
000192751 915__ $$0StatID:(DE-HGF)0111$$2StatID$$aWoS$$bScience Citation Index Expanded
000192751 915__ $$0StatID:(DE-HGF)0150$$2StatID$$aDBCoverage$$bWeb of Science Core Collection
000192751 915__ $$0StatID:(DE-HGF)0199$$2StatID$$aDBCoverage$$bThomson Reuters Master Journal List
000192751 915__ $$0StatID:(DE-HGF)0200$$2StatID$$aDBCoverage$$bSCOPUS
000192751 915__ $$0StatID:(DE-HGF)0300$$2StatID$$aDBCoverage$$bMedline
000192751 915__ $$0StatID:(DE-HGF)0310$$2StatID$$aDBCoverage$$bNCBI Molecular Biology Database
000192751 915__ $$0StatID:(DE-HGF)0400$$2StatID$$aAllianz-Lizenz / DFG
000192751 915__ $$0StatID:(DE-HGF)0420$$2StatID$$aNationallizenz
000192751 915__ $$0StatID:(DE-HGF)1150$$2StatID$$aDBCoverage$$bCurrent Contents - Physical, Chemical and Earth Sciences
000192751 915__ $$0StatID:(DE-HGF)9900$$2StatID$$aIF <  5
000192751 9141_ $$y2014
000192751 9101_ $$0I:(DE-HGF)0$$6P:(DE-H253)PIP1008885$$aExternes Institut$$b1$$kExtern
000192751 9101_ $$0I:(DE-HGF)0$$6P:(DE-H253)PIP1009485$$aExternes Institut$$b2$$kExtern
000192751 9101_ $$0I:(DE-HGF)0$$6P:(DE-H253)PIP1008369$$aExternes Institut$$b3$$kExtern
000192751 9101_ $$0I:(DE-HGF)0$$6P:(DE-H253)PIP1008104$$aExternes Institut$$b4$$kExtern
000192751 9132_ $$0G:(DE-HGF)POF3-899$$1G:(DE-HGF)POF3-890$$2G:(DE-HGF)POF3-800$$aDE-HGF$$bProgrammungebundene Forschung$$lohne Programm$$vohne Topic$$x0
000192751 9131_ $$0G:(DE-HGF)POF2-54G13$$1G:(DE-HGF)POF2-540$$2G:(DE-HGF)POF2-500$$3G:(DE-HGF)POF2$$4G:(DE-HGF)POF$$9G:(DE-H253)POF2-X1-20130405$$aDE-H253$$bStruktur der Materie$$lForschung mit Photonen, Neutronen, Ionen$$vDORIS III$$x0
000192751 9201_ $$0I:(DE-H253)HAS-User-20120731$$kDOOR$$lDOOR-User$$x0
000192751 980__ $$ajournal
000192751 980__ $$aVDB
000192751 980__ $$aI:(DE-H253)HAS-User-20120731
000192751 980__ $$aUNRESTRICTED