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Shining Light on Indium Oxide Gas Sensors at Work: A Combined Operando Raman/UV-Vis/FT-IR Spectroscopic Study

Berka, Sebastian ; Fleischer, Viktoriya ; Hess, Christian (2019)
Shining Light on Indium Oxide Gas Sensors at Work: A Combined Operando Raman/UV-Vis/FT-IR Spectroscopic Study.
In: Proceedings, 14 (1)
doi: 10.3390/proceedings2019014011
Artikel, Bibliographie

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Kurzbeschreibung (Abstract)

Understanding the mode of operation of metal-oxide gas sensors (e.g., SnO₂, In₂O₃) is of great scientific and economic interest. Such a knowledge based approach requires the development and application of spectroscopic tools to monitor the relevant surface and bulk processes under working conditions (operando approach) [1,2] In previous studies on In₂O₃ sensors, we applied combined operando Raman/gas-phase FT-IR spectroscopy to ethanol gas sensing [2,3] In this contribution, we will present recent results on ethanol and CO detection using undoped and Ag doped In₂O₃ gas sensors, demonstrating the advantages of (i) operando Surface Enhanced Raman Spectroscopy (SERS) to monitor the metal oxidation state, and (ii) extending the operando Raman/FT-IR setup by UV-Vis spectroscopy to reveal the degree of In₂O₃ reduction.

Typ des Eintrags: Artikel
Erschienen: 2019
Autor(en): Berka, Sebastian ; Fleischer, Viktoriya ; Hess, Christian
Art des Eintrags: Bibliographie
Titel: Shining Light on Indium Oxide Gas Sensors at Work: A Combined Operando Raman/UV-Vis/FT-IR Spectroscopic Study
Sprache: Englisch
Publikationsjahr: 2019
Ort: Basel
Verlag: MDPI
Titel der Zeitschrift, Zeitung oder Schriftenreihe: Proceedings
Jahrgang/Volume einer Zeitschrift: 14
(Heft-)Nummer: 1
Kollation: 2 Seiten
Veranstaltungstitel: 8th edition of the Gospel Workshop
Veranstaltungsort: Ferrara, Italy
Veranstaltungsdatum: 20.06.2019-21.06.2019
DOI: 10.3390/proceedings2019014011
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Kurzbeschreibung (Abstract):

Understanding the mode of operation of metal-oxide gas sensors (e.g., SnO₂, In₂O₃) is of great scientific and economic interest. Such a knowledge based approach requires the development and application of spectroscopic tools to monitor the relevant surface and bulk processes under working conditions (operando approach) [1,2] In previous studies on In₂O₃ sensors, we applied combined operando Raman/gas-phase FT-IR spectroscopy to ethanol gas sensing [2,3] In this contribution, we will present recent results on ethanol and CO detection using undoped and Ag doped In₂O₃ gas sensors, demonstrating the advantages of (i) operando Surface Enhanced Raman Spectroscopy (SERS) to monitor the metal oxidation state, and (ii) extending the operando Raman/FT-IR setup by UV-Vis spectroscopy to reveal the degree of In₂O₃ reduction.

ID-Nummer: Artikel-ID: 11
Fachbereich(e)/-gebiet(e): 07 Fachbereich Chemie
07 Fachbereich Chemie > Eduard Zintl-Institut
07 Fachbereich Chemie > Eduard Zintl-Institut > Fachgebiet Physikalische Chemie
Hinterlegungsdatum: 27 Aug 2019 05:28
Letzte Änderung: 15 Feb 2024 11:13
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