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  Stability and dissolution of electrocatalysts: Building the bridge between model and “real world” systems

Cherevko, S. (2018). Stability and dissolution of electrocatalysts: Building the bridge between model and “real world” systems. Current Opinion in Electrochemistry, 8, 118-125. doi:10.1016/j.coelec.2018.03.034.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0001-E7FC-F Version Permalink: http://hdl.handle.net/21.11116/0000-0001-E7FD-E
Genre: Journal Article

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Cherevko, Serhiy1, 2, Author              
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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 Abstract: This review gives a snapshot of the current state of the electrocatalyst stability research. The accent is put on the dissolution of the state-of-the-art oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) Pt- and Ir- or Ru-based catalysts, respectively. Two important aspects at the cutting edge of the ORR and OER catalyst stability research, viz. stability of the catalyst layers containing very small loadings of Pt and Ir/Ru and the question of the conformity of the model dissolution studies with degradation of the “real world” catalyst layers are highlighted. It is shown that in both systems catalyst degradation accelerates with decrease in catalyst loading. Situation is more complex though, when model and real systems are contrasted. Thus, while dissolution of Pt is comparable, no convincing comparison for Ir/Ru can be provided yet. The potential near future research directions are emphasized throughout the text. © 2018 Elsevier B.V.

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Language(s): eng - English
 Dates: 2018-03
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1016/j.coelec.2018.03.034
BibTex Citekey: Cherevko2018118
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Title: Current Opinion in Electrochemistry
Source Genre: Journal
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Publ. Info: Elsevier B.V.
Pages: - Volume / Issue: 8 Sequence Number: - Start / End Page: 118 - 125 Identifier: ISSN: 2451-9103
CoNE: https://pure.mpg.de/cone/journals/resource/2451-9103