Mierwaldt, Daniel

[["dc.bibliographiccitation.firstpage","129"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Catalysts"],["dc.bibliographiccitation.lastpage","145"],["dc.bibliographiccitation.volume","4"],["dc.contributor.author","Mierwaldt, Daniel"],["dc.contributor.author","Mildner, Stephanie"],["dc.contributor.author","Arrigo, Rosa"],["dc.contributor.author","Knop-Gericke, Axel"],["dc.contributor.author","Franke, Emanuel"],["dc.contributor.author","Blumenstein, Andreas"],["dc.contributor.author","Hoffmann, Joerg"],["dc.contributor.author","Jooß, Christian"],["dc.date.accessioned","2018-11-07T09:39:09Z"],["dc.date.available","2018-11-07T09:39:09Z"],["dc.date.issued","2014"],["dc.description.abstract","Studying catalysts in situ is of high interest for understanding their surface structure and electronic states in operation. Herein, we present a study of epitaxial manganite perovskite thin films (Pr1-xCaxMnO3) active for the oxygen evolution reaction (OER) from electro-catalytic water splitting. X-ray absorption near-edge spectroscopy (XANES) at the Mn L- and O K-edges, as well as X-ray photoemission spectroscopy (XPS) of the O 1s and Ca 2p states have been performed in ultra-high vacuum and in water vapor under positive applied bias at room temperature. It is shown that under the oxidizing conditions of the OER a reduced Mn2+ species is generated at the catalyst surface. The Mn valence shift is accompanied by the formation of surface oxygen vacancies. Annealing of the catalysts in O-2 atmosphere at 120 degrees C restores the virgin surfaces."],["dc.description.sponsorship","DFG CRC 1073 project C02"],["dc.description.sponsorship","Deutsche Forschungsgemeinschaft through the CRC 1073 [C02]"],["dc.identifier.doi","10.3390/catal4020129"],["dc.identifier.isi","000339590600004"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/10510"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/33215"],["dc.notes","Financial support by the Deutsche Forschungsgemeinschaft through the CRC 1073 project C02"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.relation","SFB 1073: Kontrolle von Energiewandlung auf atomaren Skalen"],["dc.relation","SFB 1073 | Topical Area C | C02 In situ hochauflösende Untersuchung des aktiven Zustands bei der photo- und elektrochemischen Wasserspaltung"],["dc.relation.issn","2073-4344"],["dc.relation.orgunit","Fakultät für Physik"],["dc.relation.orgunit","Institut für Materialphysik"],["dc.title","In Situ XANES/XPS Investigation of Doped Manganese Perovskite Catalysts"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.subtype","original_ja"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]