PEDOT/Palladium composite material: synthesis, characterization and application to simultaneous determination of dopamine and uric acid
IR@CECRI: CSIR-Central Electrochemical Research Institute, Karaikudi
View Archive Info| Field | Value | |
| Title |
PEDOT/Palladium composite material: synthesis,
characterization and application to simultaneous
determination of dopamine and uric acid
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| Creator |
Harish, S.
Mathiyarasu, J. Phani, K.L.N. Yegnaraman, V. |
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| Subject |
Electrodics and Electrocatalysis
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| Description |
Palladium (Pd) incorporated poly (3,4-ethylenedioxythiophene)
(PEDOT) films were synthesized
through an electrochemical route and characterized using
scanning electron microscopy (SEM) and atomic force
microscopy (AFM). The electrochemical study showed
catalytic oxidation of dopamine (DA) with optimum
loading of Pd. DA and uric acid (UA) were detected using
differential pulse voltammetry (DPV). In the presence of
ascorbic acid (AA), DA-AA showed peak potential separation
of 0.19 V while 0.32 V between UA-AA on Pdincorporated
PEDOT. These peak separations are large
enough for sensing DA and UA in the presence of AA. DA
and UA exhibited linear calibration plots and the minimum
detection limits are 0.5 and 7 lM respectively. On Pd-
PEDOT, the reversibility of DA oxidation was found to
increase compared to bare glassy carbon electrode (GCE)
and PEDOT modified GCE. Fouling effects were also
found to be minimal making Pd-PEDOT composite suitable
for electroanalysis.
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| Publisher |
Springer Science+Business Media B.V.
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| Date |
2008
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://cecri.csircentral.net/224/1/074-2008.pdf
Harish, S. and Mathiyarasu, J. and Phani, K.L.N. and Yegnaraman, V. (2008) PEDOT/Palladium composite material: synthesis, characterization and application to simultaneous determination of dopamine and uric acid. J Appl Electrochem., 38 (11). pp. 1583-1588. |
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| Relation |
http://cecri.csircentral.net/224/
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