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  Evanescent wave broadband cavity enhanced absorption spectroscopy using supercontinuum radiation: A new probe of electrochemical processes

Schnippering, M., Unwin, P. R., Hult, J., Laurila, T., Kaminski, C. F., Langridge, J. M., et al. (2008). Evanescent wave broadband cavity enhanced absorption spectroscopy using supercontinuum radiation: A new probe of electrochemical processes. ELECTROCHEMISTRY COMMUNICATIONS, 10(12), 1827-1830. doi:10.1016/j.elecom.2008.09.014.

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Datensatz-Permalink: https://hdl.handle.net/11858/00-001M-0000-002D-6C49-3 Versions-Permalink: https://hdl.handle.net/11858/00-001M-0000-002D-6C4A-1
Genre: Zeitschriftenartikel

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 Urheber:
Schnippering, Mathias1, Autor
Unwin, Patrick R.1, Autor
Hult, Johan1, Autor
Laurila, Toni1, Autor
Kaminski, Clemens F.2, Autor           
Langridge, Justin M.1, Autor
Jones, Roderic L.1, Autor
Mazurenka, Mikhail1, Autor
Mackenzie, Stuart R.1, Autor
Affiliations:
1external, ou_persistent22              
2Max Planck Research Group, Max Planck Institute for the Science of Light, Max Planck Society, ou_2364712              

Inhalt

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Schlagwörter: RING-DOWN SPECTROSCOPY; OPTICALLY TRANSPARENT ELECTRODES; THIN-LAYER; DIFFUSION CONDITIONS; SPECTROELECTROCHEMISTRY; CELL; ADSORPTION; SURFACE; NANOPARTICLES; PATHElectrochemistry; Spectroelectrochemistry; Interfacial absorbance; Broadband cavity enhanced absorption; Supercontinuum radiation;
 Zusammenfassung: An evanescent wave variant of broadband cavity enhanced absorption spectroscopy using a supercontinuum light source has been used to detect electrogenerated species at the silica-water interface. In proof-of-concept experiments [IrCl(6)](2-) was produced by electro-oxidation of [IrCl(6)](3-) in a thin layer electrochemical cell. Diffusion of the Ir(IV) across the cell to a silica interface was monitored yielding real-time concentrations within an evanescent field region at the interface. The optical response was compared with the electrochemical response during chronoamperometric step and cyclic voltammetric experiments and both were simulated by finite element modeling. The experiment is highly sensitive to interfacial processes and its wide spectral width and fast time resolution make it a potentially powerful tool for in situ spectroscopic monitoring of processes and intermediates in dynamical electrochemistry. (C) 2008 Elsevier B.V. All rights reserved.

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Sprache(n): eng - English
 Datum: 2008
 Publikationsstatus: Erschienen
 Seiten: 4
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: ISI: 000261985300003
DOI: 10.1016/j.elecom.2008.09.014
 Art des Abschluß: -

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Titel: ELECTROCHEMISTRY COMMUNICATIONS
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA : ELSEVIER SCIENCE INC
Seiten: - Band / Heft: 10 (12) Artikelnummer: - Start- / Endseite: 1827 - 1830 Identifikator: ISSN: 1388-2481