dc.creatorFester, Jakob
dc.creatorMakoveev, Anton
dc.creatorGrumelli, Doris Elda
dc.creatorGutzler, Rico
dc.creatorSun, Zhaozong
dc.creatorRodríguez Fernández, Jonathan
dc.creatorKern, Klaus
dc.creatorLauritsen, Jeppe V.
dc.date.accessioned2020-03-18T16:35:26Z
dc.date.accessioned2022-10-15T05:39:10Z
dc.date.available2020-03-18T16:35:26Z
dc.date.available2022-10-15T05:39:10Z
dc.date.created2020-03-18T16:35:26Z
dc.date.issued2018-09
dc.identifierFester, Jakob; Makoveev, Anton; Grumelli, Doris Elda; Gutzler, Rico; Sun, Zhaozong; et al.; The Structure of the Cobalt Oxide/Au Catalyst Interface in Electrochemical Water Splitting; Wiley VCH Verlag; Angewandte Chemie; 57; 37; 9-2018; 11893-11897
dc.identifier1433-7851
dc.identifierhttp://hdl.handle.net/11336/100053
dc.identifierCONICET Digital
dc.identifierCONICET
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/4350768
dc.description.abstractThe catalytic synergy between cobalt oxide and gold leads to strong promotion of the oxygen evolution reaction (OER)—one half-reaction of electrochemical water splitting. However, the mechanism behind the enhancement effect is still not understood, in part due to a missing structural model of the active interface. Using a novel interplay of cyclic voltammetry (CV) for electrochemistry integrated with scanning tunneling microscopy (STM) and X-ray photoelectron spectroscopy (XPS) on an atomically defined cobalt oxide/Au(111) system, we reveal here that the supporting gold substrate uniquely favors a flexible cobalt-oxyhydroxide/Au interface in the electrochemically active potential window and thus suppresses the formation of less active bulk cobalt oxide morphologies. The findings substantiate why optimum catalytic synergy is obtained for oxide coverages on gold close to or below one monolayer, and provide the first morphological description of the active phase during electrocatalysis.
dc.languageeng
dc.publisherWiley VCH Verlag
dc.relationinfo:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1002/ange.201804417
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1002/anie.201804417
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subjectELECTROCATALYSIS
dc.subjectMETAL OXIDES
dc.subjectOXYGEN EVOLUTION REACTIONS
dc.subjectSCANNING TUNNELING MICROSCOPY
dc.titleThe Structure of the Cobalt Oxide/Au Catalyst Interface in Electrochemical Water Splitting
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:ar-repo/semantics/artículo
dc.typeinfo:eu-repo/semantics/publishedVersion


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