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  In situ X-ray photoelectron spectroscopy of electrochemically active solid-gas and solid-liquid interfaces

Knop-Gericke, A., Pfeifer, V., Velasco Vélez, J., Jones, T., Arrigo, R., Hävecker, M., et al. (2017). In situ X-ray photoelectron spectroscopy of electrochemically active solid-gas and solid-liquid interfaces. Journal of Electron Spectroscopy and Related Phenomena, 221, 10-17. doi:10.1016/j.elspec.2017.03.010.

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2017
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Knop-Gericke, Axel1, Author           
Pfeifer, Verena1, 2, Author           
Velasco Vélez, Juan3, Author           
Jones, Travis1, Author           
Arrigo, Rosa4, Author
Hävecker, Michael1, 5, Author           
Schlögl, Robert1, 5, Author           
Affiliations:
1Inorganic Chemistry, Fritz Haber Institute, Max Planck Society, ou_24023              
2Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Catalysis for Energy, Group EM-GKAT, Elektronenspeicherring BESSYII, Albert-Einstein-Str.15, 12489 Berlin, Germany, ou_persistent22              
3MPI for Chemical Energy Conversion, ou_persistent22              
4Diamond Light Source Ltd., Harwell Science & Innovation Campus, Didcot, Oxdordshire OX 11 0DE, UK, ou_persistent22              
5Max-Planck-Institut für Chemische Energiekonversion, Deptartment of Heterogeneous Reactions, Stiftstr. 34-36, 45470 Mülheim, Germany, ou_persistent22              

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 Abstract: In this account the application of synchrotron radiation based X-ray photoelectron spectroscopy (XPS) forthe investigation of electrochemically active gas-solid and liquid-solid interfaces will be discussed. Thepotential of Near Ambient Pressure XPS (NAP-XPS) for the estimation of the surface electronic structureof electrochemically active interfaces will be described by two examples. Thereto the oxygen evolutionreaction (OER) over Pt and IrOxanodes will be introduced. In particular the analysis of XP core levelspectra of IrOxrequires the development of an appropriate fit model. Furthermore the design of reactioncells based on proton exchange membranes (PEM) and on electron transparent graphene membranes,which enables the investigation of liquid-gas and liquid-solid interfaces under electrochemical relevantconditions will be discussed. In the last part of this article a perspective to the EMIL project at the syn-chrotron radiation facility BESSY will be given. The purpose of this project is the implementation of twonew beamlines enabling X-ray photoelectron spectroscopy in the X-ray regime from 80 eV–8 keV underreaction conditions. The extension to the so called tender X-ray regime will allow the release of higherkinetic energy photoelectrons which have a higher inelastic mean free path compared to photoelectronsexcited by soft X-ray radiation and therefore will enable the investigation of solid-liquid interfaces underelectrochemical reaction conditions.

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Language(s): eng - English
 Dates: 2017-01-132017-03-172017-03-182017-11
 Publication Status: Issued
 Pages: 8
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1016/j.elspec.2017.03.010
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Title: Journal of Electron Spectroscopy and Related Phenomena
  Abbreviation : J. Electron Spectrosc. Relat. Phenom.
Source Genre: Journal
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Publ. Info: Amsterdam : Elsevier B.V.
Pages: 8 Volume / Issue: 221 Sequence Number: - Start / End Page: 10 - 17 Identifier: ISSN: 0368-2048
CoNE: https://pure.mpg.de/cone/journals/resource/954925524767