Repositorio UFRO · Omeka S

Tailoring the electroactive area of carbon screen-printed electrodes by simple activation steps towards rutin determination

Primer Autor	Garcia, Camilo
Co-autores	Sanhueza, Luis Garrido, Karla Celis, Freddy Garcia, Macarena Caceres, Cesar Moczko, Ewa Diaz, Ramiro Aguirre, Maria J.
Título	Tailoring the electroactive area of carbon screen-printed electrodes by simple activation steps towards rutin determination
Editorial	SPRINGER
Revista	JOURNAL OF SOLID STATE ELECTROCHEMISTRY
Lenguaje	en
Resumen	Screen-printed electrodes (SPEs) have the advantage of being considered electrochemical cells that can be implemented in portable sensor applications. With the aim to improve the SPE performance, herein, we present different electrochemical surface modifications of carbon-based SPEs by cyclic voltammetry in hydrogen peroxide or sodium peroxide solution. SPEs were characterized using contact angle, Raman spectroscopy, laser-induced breakdown spectroscopy (LIBS), and electrochemical methods, including cyclic voltammetry (CV), electrochemical impedance spectroscopy, and square wave voltammetry (SVW). Main results agree with the observed changes by Raman spectroscopy and the sp(2)/sp(3) ratio (I-D/I-G) of carbon vibrational bands. The diminishing of C-2 Swan signal determined by LIBS suggests that the activation steps produced defects onto the working electrode in the SPE. Considering that the different intermolecular forces of the redox couples are useful to indirectly evaluate the different functional groups, the activated SPEs were studied in the presence of rutin and [Fe(CN)(6)](3-)/[Fe(CN)(6)](4-) redox couples. Main results show that the electrochemical response of the activated electrode surfaces can be properly used to improve the rutin electrochemical determination.
Fecha Publicación	2023
Tipo de Recurso	artículo original
doi	10.1007/s10008-023-05435-8
Formato Recurso	PDF
Palabras Claves	Screen-printed electrodes Carbon activation Raman spectroscopy Laser-induced breakdown spectroscopy Electrochemical impedance spectroscopy Rutin determination
Ubicación del archivo	http://dx.doi.org/10.1007/s10008-023-05435-8
Categoría OCDE	Electroquímica
Materias	Electrodos serigrafiados Activación de carbono espectroscopia Raman Espectroscopia de ruptura inducida por láser Espectroscopía de impedancia electroquímica determinación de rutina
Página de inicio (Recomendado-único)	1511.0
Página final (Recomendado-único)	1521
Identificador del recurso (Mandatado-único)	artículo original
Versión del recurso (Recomendado-único)	versión publicada
Derechos de acceso	restringido
Access Rights	restringido
Id de Web of Science	WOS:000946437800001
ISSN	1432-8488
Tipo de ruta	verde / hibrido
Categoría WOS	Electroquímica
Referencia del Financiador (Mandatado si es aplicable-repetible)	ANID-FONDECYT A11150434 ANID-FONDECYT1160324 ANID-FONDECYT 11181187 UCT FEQUIP 2018-RD-02 UCT REG-2020-CG-412 CONICYT-FONDEQUIP EQM 180173 Universidad Católica de Temuco UCT FEQUIP 2018-RD-02 Universidad Católica de Temuco UCT REG-2020-CG-412