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Ghamouss, F., Luais, E., Thobie-Gautier, C., Tessier, P. .-Y. & Boujtita, M. (2009) Argon plasma treatment to enhance the electrochemical reactivity of screen-printed carbon surfaces. Electrochim. Acta, 54 3026–3032.
Added by: Laurent Cournède (2016-03-10 21:41:24) |
| Type de référence: Article DOI: 10.1016/j.electacta.2008.12.011 Numéro d'identification (ISBN etc.): 0013-4686 Clé BibTeX: Ghamouss2009 Voir tous les détails bibliographiques  |
Catégories: PCM Mots-clés: biocomposite, biosensors, bulk, Electrochemical reactivity, hrp, mode, oxidase, paste electrodes, performance, Plasma treatment, poly(ethylene-terephthalate) fibers, Screen-printed carbon electrode Créateurs: Boujtita, Ghamouss, Luais, Tessier, Thobie-Gautier Collection: Electrochim. Acta |
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| Résumé |
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Radiofrequency argon plasma was used for screen-printed carbon electrodes (SPCE) surface treatment. The cyclic voltammetry of ferri/ferrocyanide as redox couple showed a remarkable improvement of the electrochemical reactivity of the SPCE after the plasma treatment. The effect of the plasma growth conditions on the efficiency of the treatment procedure was evaluated in term of electrochemical reactivity of the SPCE surface. The electrochemical study showed that the electrochemical reactivity of the treated electrodes was strongly dependant on radiofrequency power, treatment time and argon gas pressure. Xray photoelectron spectroscopy (XPS) analysis showed a considerable evolution on the surface chemistry of the treated electrodes. Our results clearly showed that the argon plasma treatment induces a significant increase in the C(SP2)/C(SP3) ratio. The scanning electron micrograph (SEM) also showed a drastic change on the surface morphology of the treated SPCEs. (C) 2008 Elsevier Ltd. All rights reserved.
Added by: Laurent Cournède |