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Título : Electrochemical surface oxidation enhanced Raman scattering
Autor : Perales Rondon, Juan Víctor
Hernández Muñoz, Sheila
Martin Yerga, Daniel .
Fanjul Bolado, Pablo .
Heras, Aránzazu
Colina, Álvaro
Publicado en: Electrochimica Acta. 2018, V. 282, p. 377-383
Editorial : Elsevier
Fecha de publicación : ago-2018
Fecha de disponibilidad: 20-ago-2020
ISSN : 0013-4686
DOI: 10.1016/j.electacta.2018.06.079
Resumen : In this work, an unexpected enhancement of the Raman signal for uric acid during the electrochemical oxidation of a silver electrode is presented. This behavior cannot be easily explained using classical models of Surface Enhanced Raman Scattering (SERS). Time resolved Raman spectroelectrochemistry is used to study this interesting process strongly dependent on the experimental conditions. The new phenomenon was observed in different molecules and was found to be reproducible and robust, allowing us to use this methodology for the determination of citric acid. The enhancement of the Raman signal only takes place when a potential is applied to the electrode and therefore, this new phenomenon can be denoted as Electrochemical Surface Oxidation Enhanced Raman Scattering (EC-SOERS). In this work, EC-SOERS is presented not only as an alternative to SERS for detection of molecules but also as a reproducible process that can be used for quantitative analysis
Palabras clave: SERS
Silver roughening
Raman spectroelectrochemistry
PARAFAC
Materia: Química analítica
Chemistry, Analytic
Licencia: http://creativecommons.org/licenses/by-nc-nd/4.0/
URI : http://hdl.handle.net/10259/4942
Versión del editor: https://doi.org/10.1016/j.electacta.2018.06.079
Aparece en las colecciones: Artículos GAIN

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