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Comparative study of cyclic voltammetry and cycle stability of electropolymerized poly (3,4-ethylenedioxythiophene) poly(sodium 4-styrenesulfonate) on screen-printed carbon and platinum electrodes in aqueous media

Benoudjit, Abdel Mohsen and Shohibuddin, Ihda Uswatun Shalihah and Tumian, Afidalina and Wan Salim, Wan Wardatul Amani (2020) Comparative study of cyclic voltammetry and cycle stability of electropolymerized poly (3,4-ethylenedioxythiophene) poly(sodium 4-styrenesulfonate) on screen-printed carbon and platinum electrodes in aqueous media. Test Engineering and Management, 83 (May-June). pp. 1033-1040. ISSN 0193-4120

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Abstract

Poly (3,4-ethylenedioxythiophene) poly(sodium 4-styrenesulfonate) (PEDOT:PSS) electropolymerized and deposited onto screen-printed carbon electrodes (SPCEs) and screen-printed platinum electrodes (SPPEs) was studied for anodic/cathodic peak current and cycle stability. Cyclic voltammetry (CV) shows that the redox ability of SPCEs electropolymerized with PEDOT:PSS (PEDOT:PSS/SPCEs) was significantly improved in comparison to SPPEs electropolymerized with PEDOT:PSS (PEDOT:PSS/SPPEs; the peak current difference of oxidation and reduction (ΔI) for PEDOT:PSS/SPCEs was ~3 times higher than that of PEDOT:PSS/SPPEs (ΔISPCE = 350 µA, ΔISPPE = 125 µA). Oxidation and reduction peak current of the CVs showed that both electrodes could maintain electrode integrity for over 30 days. The results suggest that the electropolymerized PEDOT:PSS had good adhesion to SPCE and SPPE surfaces. There was an insignificant change in the cycle stability curve after 3000 cycles compare to the initial cycle (p-value = 0.5) and an insignificant change in the cycle stability curve after 30 days in comparison to the first day (p-value = 0.9). The results suggest that electrode integrity of both PEDOT:PSS/SPCEs and PEDOT:PSS/SPPEs were maintained after repetitive CV cycles in aqueous media.

Item Type: Article (Journal)
Additional Information: 7116/80506
Uncontrolled Keywords: screen-printed carbon electrodes, screen-printed platinum electrodes, cycle stability, aqueous media, PEDOT:PSS
Subjects: T Technology > TP Chemical technology
T Technology > TP Chemical technology > TP248.13 Biotechnology
T Technology > TP Chemical technology > TP250 Industrial electrochemistry
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Engineering
Kulliyyah of Engineering > Department of Biotechnology Engineering
Kulliyyah of Engineering > Department of Electrical and Computer Engineering
Depositing User: Dr Wan Wardatul Amani Wan Salim
Date Deposited: 28 May 2020 10:39
Last Modified: 28 May 2020 10:40
URI: http://irep.iium.edu.my/id/eprint/80506

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