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  Coupling of a scanning flow cell with online electrochemical mass spectrometry for screening of reaction selectivity

Grote, J.-P., Žeradjanin, A. R., Cherevko, S., & Mayrhofer, K. J. J. (2014). Coupling of a scanning flow cell with online electrochemical mass spectrometry for screening of reaction selectivity. Review of Scientific Instruments, 85(10): 104101. doi:10.1063/1.4896755.

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 Urheber:
Grote, Jan-Philipp1, Autor           
Žeradjanin, Aleksandar R.1, Autor           
Cherevko, Serhiy1, Autor           
Mayrhofer, Karl J. J.1, Autor           
Affiliations:
1Electrocatalysis, Interface Chemistry and Surface Engineering, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_1863354              

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Schlagwörter: Energy-Conversion; Dems; Oxidation; Electrode; Reduction; System Instruments & Instrumentation; Physics;
 Zusammenfassung: In this work the online coupling of a miniaturized electrochemical scanning flow cell (SFC) to a mass spectrometer is introduced. The system is designed for the determination of reaction products in dependence of the applied potential and/or current regime as well as fast and automated change of the sample. The reaction products evaporate through a hydrophobic PTFE membrane into a small vacuum probe, which is positioned only 50-100 mu m away from the electrode surface. The probe is implemented into the SFC and directly connected to the mass spectrometer. This unique configuration enables fast parameter screening for complex electrochemical reactions, including investigation of operation conditions, composition of electrolyte, and material composition. The technical developments of the system are validated by initial measurements of hydrogen evolution during water electrolysis and electrochemical reduction of CO2 to various products, showcasing the high potential for systematic combinatorial screening by this approach. (C) 2014 AIP Publishing LLC.

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Sprache(n): eng - English
 Datum: 2014-10-01
 Publikationsstatus: Erschienen
 Seiten: 5
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: ISI: 000344594200054
DOI: 10.1063/1.4896755
 Art des Abschluß: -

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Titel: Review of Scientific Instruments
Genre der Quelle: Zeitschrift
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Affiliations:
Ort, Verlag, Ausgabe: Melville, NY : AIP Publishing
Seiten: - Band / Heft: 85 (10) Artikelnummer: 104101 Start- / Endseite: - Identifikator: ISSN: 0034-6748
CoNE: https://pure.mpg.de/cone/journals/resource/991042742033452