Barrier films to control loss of 9,10-anthraquinone-2-sulphonate dopant from PEDOT films during electrochemical transitions
IR@CECRI: CSIR-Central Electrochemical Research Institute, Karaikudi
View Archive Info| Field | Value | |
| Title |
Barrier films to control loss of 9,10-anthraquinone-2-sulphonate dopant from PEDOT films during electrochemical transitions
|
|
| Creator |
Harish, S.
Sridharan, D. Senthil Kumar, S. James, J. Phani, K.L.N. |
|
| Subject |
Electrodics and Electrocatalysis
|
|
| Description |
We describe a simple approach for the synthesis of stable electroactive poly[3,4-ethylene dioxythiophene]
(PEDOT) in an acid medium, by incorporating a redox active dopant like 9,10-anthraquinone-2-sodium
sulphonate (AQS) on a glassy carbon (GC) electrode. The modified electrode is responsive up to a pH of 7.
The stability of the modified electrode during continuous electrochemical cycling is poor, due to leaching
of the dopant from the PEDOT film. Efforts are made to improve the stability of the modified electrode
by forming an anionic barrier film on the PEDOT-AQS interface either physically or electrochemically.
The modified electrodes were monitored by cyclic voltammetry and Fourier transform-infrared (FT-IR)
spectroscopy for the presence of AQS in the film.
|
|
| Publisher |
Elsevier
|
|
| Date |
2009
|
|
| Type |
Article
PeerReviewed |
|
| Format |
application/pdf
|
|
| Identifier |
http://cecri.csircentral.net/330/1/043-2009.pdf
Harish, S. and Sridharan, D. and Senthil Kumar, S. and James, J. and Phani, K.L.N. (2009) Barrier films to control loss of 9,10-anthraquinone-2-sulphonate dopant from PEDOT films during electrochemical transitions. Electrochimica Acta, 54 (13). pp. 3618-3622. ISSN 0013-4686 |
|
| Relation |
http://cecri.csircentral.net/330/
|
|