Dokument-ID Dokumenttyp Autoren/innen Persönliche Herausgeber/innen Haupttitel Abstract Auflage Verlagsort Verlag Herausgeber (Institution) Erscheinungsjahr Titel des übergeordneten Werkes Jahrgang/Band ISBN Veranstaltung Veranstaltungsort Beginndatum der Veranstaltung Enddatum der Veranstaltung Ausgabe/Heft Erste Seite Letzte Seite URN DOI Lizenz Datum der Freischaltung OPUS4-50573 Zeitschriftenartikel Wurzler, Nina; Schütter, J. D.; Wagner, R.; Dimper, M.; Lützenkirchen-Hecht, D.; Özcan Sandikcioglu, Özlem Trained to corrode: Cultivation in the presence of Fe(III) increases the electrochemical activity of iron reducing bacteria - An in situ electrochemical XANES study This paper reports results from in situ electrochemical X-ray absorption near-edge spectroscopy (XANES) studies of the corrosion processes on model thin iron films in the presence of iron reducing bacteria Shewanella putrefaciens. Here we investigate the electrochemical activity of two cultures grown in the presence and absence of Fe(III) citrate in the culture medium. The XANES spectra and the OCP data of the Fe sample incubated with the culture grown in absence of Fe(III) did not show any significant changes during twenty hours of monitoring. In the case of the culture grown in Fe(III) containing medium, an accelerated dissolution of the iron film was observed together with the formation of a mixed Fe(II)-Fe(III) hydroxide surface layer. The open circuit potential (OCP) steadily approached the free corrosion potential of iron in neutral chloride containing electrolytes, indicating a continuous dissolution process without passivation. Elsevier B.V. 2020 Electrochemistry Communications 112 106673 urn:nbn:de:kobv:b43-505732 10.1016/j.elecom.2020.106673 https://creativecommons.org/licenses/by/4.0/deed.de 2020-03-19