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  Introducing Ionic-Current Detection for X-ray Absorption Spectroscopy in Liquid Cells

Schön, D., Xiao, J., Golnak, R., Tesch, M. F., Winter, B., Velasco Vélez, J., et al. (2017). Introducing Ionic-Current Detection for X-ray Absorption Spectroscopy in Liquid Cells. The Journal of Physical Chemistry Letters, 8(9), 2087-2092. doi:10.1021/acs.jpclett.7b00646.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-2BFE-2 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-32DD-A
Genre: Journal Article

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 Creators:
Schön, Daniela1, 2, Author
Xiao, Jie1, Author
Golnak, Ronny1, Author
Tesch, Marc F.1, Author
Winter, Bernd1, 3, Author              
Velasco Vélez, Juan4, Author              
Aziz, Emad F.1, 2, 5, Author
Affiliations:
1Institute of Methods for Material Development, Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, 12489 Berlin, Germany, ou_persistent22              
2Department of Physics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany, ou_persistent22              
3Molecular Physics, Fritz Haber Institute, Max Planck Society, ou_634545              
4Inorganic Chemistry, Fritz Haber Institute, Max Planck Society, ou_24023              
5School of Chemistry, Monash University, Victoria 3800, Australia, ou_persistent22              

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 Abstract: Photons and electrons are two common relaxation products upon X-ray absorption, enabling fluorescence yield and electron yield detections for X-ray absorption spectroscopy (XAS). The ions that are created during the electron yield process are relaxation products too, which are exploited in this study to produce ion yield for XA detection. The ionic currents measured in a liquid cell filled with water or iron(III) nitrate aqueous solutions exhibit characteristic O K-edge and Fe L-edge absorption profiles as a function of excitation energy. Application of two electrodes installed in the cell is crucial for obtaining the XA spectra of the liquids behind membranes. Using a single electrode can only probe the species adsorbed on the membrane surface. The ionic-current detection, termed as total ion yield (TIY) in this study, also produces an undistorted Fe L-edge XA spectrum, indicating its promising role as a novel detection method for XAS studies in liquid cells.

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Language(s): eng - English
 Dates: 2017-03-162017-04-242017-04-242017-05-04
 Publication Status: Published in print
 Pages: 6
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1021/acs.jpclett.7b00646
 Degree: -

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Title: The Journal of Physical Chemistry Letters
  Abbreviation : J. Phys. Chem. Lett.
Source Genre: Journal
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Publ. Info: Washington, DC : American Chemical Society
Pages: - Volume / Issue: 8 (9) Sequence Number: - Start / End Page: 2087 - 2092 Identifier: CoNE: /journals/resource/1948-7185