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A fast and simple ozone-mediated method towards highly activated screen printed carbon electrodes as versatile electroanalytical tools

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dc.contributor.author González Sánchez, María Isabel
dc.contributor.author Romero-Llapa, María Isabel
dc.contributor.author Gómez Monedero, Beatriz
dc.contributor.author Jiménez-Pérez, Rebeca
dc.contributor.author Iniesta, Jesús
dc.contributor.author Valero, Edelmira
dc.date.accessioned 2020-01-10T16:08:22Z
dc.date.available 2020-01-10T16:08:22Z
dc.date.issued 2019
dc.identifier.citation Electroanalysis. 2019 es_ES
dc.identifier.uri http://hdl.handle.net/10578/23066
dc.description.abstract A facile and effective electrochemical activation method of screen printed carbon electrodes (SPCEs) has been performed using ozone gas. Activated SPCEs showed relevant improvements in the electrochemical properties such as an impedance reduction and better electroanalytical outcomes. Such improved properties were attributed to the increase of the electroactive surface area and the functionalization of the electrode surface with carbon-oxygen groups onto the carbonaceous ink surface. The optimized activation method consisted in the performance of a voltammetric cycle between -2 and 2 V at 10 mVs-1 in 0.1 M NaOH solution with constant ozone gas bubbling. This activation procedure takes 12 min, which allows its use routinely prior to the electrode modifications and electroanalytical measurements. The resulting activated SPCEs exhibited superior sensitivities towards hydrogen peroxide, acetaminophen, hydroquinone and dopamine. This methodology might be considered as a strategy to attain SPCEs with improved electroanalytical properties for multiple applications. es_ES
dc.format application/pdf es_ES
dc.language.iso en es_ES
dc.publisher Wiley es_ES
dc.rights info:eu-repo/semantics/openAccess es_ES
dc.subject Activation es_ES
dc.subject Hydrogen peroxide es_ES
dc.subject Ozone es_ES
dc.subject Phenolic compounds es_ES
dc.subject Screen-printed carbon electrodes es_ES
dc.title A fast and simple ozone-mediated method towards highly activated screen printed carbon electrodes as versatile electroanalytical tools es_ES
dc.type info:eu-repo/semantics/article es_ES
dc.identifier.DOI 10.1002/elan.201900335


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