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  Electrochemical dissolution of gold in presence of chloride and bromide traces studied by on-line electrochemical inductively coupled plasma mass spectrometry

Kasian, O., Kulyk, N., Mingers, A. M., Zeradjanin, A. R., Mayrhofer, K. J. J., & Cherevko, S. (2016). Electrochemical dissolution of gold in presence of chloride and bromide traces studied by on-line electrochemical inductively coupled plasma mass spectrometry. Electrochimica Acta, 222, 1056-1063. doi:10.1016/j.electacta.2016.11.074.

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Datensatz-Permalink: https://hdl.handle.net/11858/00-001M-0000-002D-3FCC-4 Versions-Permalink: https://hdl.handle.net/11858/00-001M-0000-002D-3FCD-2
Genre: Zeitschriftenartikel

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 Urheber:
Kasian, Olga1, Autor           
Kulyk, Nadiia1, Autor           
Mingers, Andrea Maria1, Autor           
Zeradjanin, Aleksandar R.1, 2, Autor           
Mayrhofer, Karl J. J.1, 2, Autor           
Cherevko, Serhiy1, 2, Autor           
Affiliations:
1Electrocatalysis, Interface Chemistry and Surface Engineering, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_1863354              
2Helmholtz-Institute Erlangen-Nuremberg for Renewable Energy (IEK-11), Forschungszentrum Jülich, Egerlandstrasse 3, 91058 Erlangen, Germany, ou_persistent22              

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Schlagwörter: gold; corrosion; passivation; oxidation; halide ions
 Zusammenfassung: Electrochemical dissolution of gold in the presence of halide ions is traditionally considered as a model case in metal corrosion and passivation studies. Due to a relatively low sensitivity of the conventional techniques, such studies were predominantly limited to electrolytes with high concentrations of halides. The current work employs a special electrochemical scanning flow cell with online inductively coupled plasma mass spectrometry (SFC-ICP-MS) that allows overcoming those limitations, enabling the quantification of gold dissolution in the presence of chloride and bromide traces (1 mu M <= [Cl- / Br-] <= 100 mu M). Moreover, time-and potential-resolved gold dissolution profiles under different potential programs are provided. Based on the experimental results, a tentative mechanism of gold dissolution based on the catalyzing role of hydroxyl and halide anions is discussed. (C) 2016 Elsevier Ltd. All rights reserved.

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Sprache(n): eng - English
 Datum: 2016-12-20
 Publikationsstatus: Erschienen
 Seiten: 8
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: ISI: 000395443700011
DOI: 10.1016/j.electacta.2016.11.074
 Art des Abschluß: -

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Titel: Electrochimica Acta
  Kurztitel : Electrochim. Acta
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: Oxford, UK : Pergamon-Elsevier Science Ltd
Seiten: - Band / Heft: 222 Artikelnummer: - Start- / Endseite: 1056 - 1063 Identifikator: ISSN: 0013-4686
CoNE: https://pure.mpg.de/cone/journals/resource/954925396434