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  Stability of nanostructured iridium oxide electrocatalysts during oxygen evolution reaction in acidic environment

Cherevko, S., Reier, T., Žeradjanin, A. R., Pawolek, Z., Strasser, P., & Mayrhofer, K. J. J. (2014). Stability of nanostructured iridium oxide electrocatalysts during oxygen evolution reaction in acidic environment. Electrochemistry Communucations, 48, 81-85. doi:10.1016/j.elecom.2014.08.027.

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 Creators:
Cherevko, Serhiy1, Author           
Reier, Tobias2, Author           
Žeradjanin, Aleksandar R.1, Author           
Pawolek, Zarina2, Author           
Strasser, Peter2, Author           
Mayrhofer, Karl J. J.1, Author           
Affiliations:
1Electrocatalysis, Interface Chemistry and Surface Engineering, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_1863354              
2Department of Chemistry, Technical University Berlin, Straße des 17., Berlin, Germany, ou_persistent22              

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Free keywords: Catalyst-Substrate Interactions; Electrochemical Properties; Titanium Anodes; Noble-Metals; Service Life; Films; Corrosion; Surface; IrO2; Electrodes; Electrochemistry; Oxygen evolution; Energy conversion; Iridium oxide; IrO2; Dissolution; Corrosion;
 Abstract: The electrochemical stability of thermally prepared Ir oxide films is investigated using a scanning flow cell (SFC)-inductively coupled plasma mass-spectrometer (ICP-MS) setup under transient and stationary potential and/or current conditions. Time-resolved dissolution rates provide important insights into critical conditions for material breakdown and a fully quantitative in-situ assessment of the electrochemical stability during oxygen evolution reaction (OER) conditions. In particular, the results demonstrate that stability and OER activity of the IrOx catalysts strongly depend on the chemical and structural nature of Ir oxide species and their synthesis conditions. (C) 2014 The Authors. Published by Elsevier B.V.

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Language(s): eng - English
 Dates: 2014-11
 Publication Status: Issued
 Pages: 5
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Degree: -

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Title: Electrochemistry Communucations
Source Genre: Journal
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Publ. Info: New York, NY : Elsevier
Pages: - Volume / Issue: 48 Sequence Number: - Start / End Page: 81 - 85 Identifier: ISSN: 1388-2481
CoNE: https://pure.mpg.de/cone/journals/resource/954925622231