Journal
ELECTROCHEMISTRY COMMUNICATIONS
Volume 44, Issue -, Pages 8-11Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2014.03.026
Keywords
Deep eutectic solvents; PEDOT; Electrocatalysis; Sensors; Ascorbate
Categories
Funding
- Fundacao para a Ciencia e a Tecnologia (FCT), Portugal [PTDC/QUI-QUI/116091/2009]
- POCH
- POFC-QREN
- FSE
- European Community FEDER [PEst-C/EME/U10285/2013]
- CENTRO [07-0224]
- FEDER [002001 (MT4MOBI)]
- FCT [SFRH/BPD/78939/2011]
- Fundação para a Ciência e a Tecnologia [SFRH/BPD/78939/2011] Funding Source: FCT
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Deep eutectic solvents are evaluated as media for the electropolymerisation of 3,4-ethylenedioxythiophene (EDOT) for the first time. PEDOT modified glassy carbon electrodes (GCEs) were characterised by cyclic voltammetry, electrochemical impedance spectroscopy and scanning electron microscopy. PEDOT modified GCEs prepared from choline chloride-urea (reline) and choline chloride-ethylene glycol (ethaline) exhibited interesting electrocatalytic and morphological characteristics. Fixed potential sensing of ascorbate at 0.0 V showed a greater electrocatalytic effect, significantly higher sensitivity and lower detection limit than at hitherto reported PEDOT modified electrodes. (C) 2014 Elsevier B.V. All rights reserved.
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