In recent years, in the field of electrochemical sensors the use of conducting electroactive polymers1, on one hand and, on the other hand the application of carbon nanotubes2 seem to be very promising, since these new materials allow the enhancement of speed, sensitivity and versatility of the sensors. Moreover, the combination of these materials can considerably improve sensor performances, but in this context, the knowledge of the contribute of each species is a key point for the development of the new device. For this purpose, electrodes with conducting polymers and carbon nanotubes have been prepared and characterized by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) in order to establish the position importance and the individual role of each component. In particular, Brilliant Green (BG), which belongs to the triphenylmethane family, has been electrochemically polymerized by cyclic voltammetry on bare carbon film electrodes (CFE) and for the first time on carbon nanotubes (CNTs) and poly(3,4-ethylenedioxythiophene)3 (PEDOT) modified carbon film electrodes. The analytical performances of different electrode architectures towards hydrogen peroxide detection4 allowed the choice of the best electrode configuration for further application in sensor and biosensor construction5. References [1] Rajesh, T. Ahuja, D. Kumar, Sens. Actuators B, (2009), 136, 275. [2] J.J. Gooding, Electrochim. Acta, (2005), 50, 3049. [3] S. Kakhki, M.M. Barsan, E. Shams, C.M.A. Brett, Synth. Met., (2012), 161, 2718. [4] W. Chen, S. Cai, Q-Q. Ren, W. Wen, Y.-D. Zhao, Analyst, (2012), 137, 49. [5] V. Pifferi, M.M. Barsan, M.E. Ghica, L. Falciola, C.M.A. Brett, Electrochimica Acta (2013), 98, 199.

Characterization and electroanalytical applications of different electrode architectures based on PEDOT, poly(brilliant green) and carbon nanotubes / V. Pifferi, M.M. Barsan, M.E. Ghica, L. Falciola, C.M.A. Brett. ((Intervento presentato al convegno Giornata del Gruppo Interdivisionale Sensori della Società Chimica Italiana tenutosi a Sestri Levante nel 2013.

Characterization and electroanalytical applications of different electrode architectures based on PEDOT, poly(brilliant green) and carbon nanotubes

V. Pifferi;L. Falciola;
2013

Abstract

In recent years, in the field of electrochemical sensors the use of conducting electroactive polymers1, on one hand and, on the other hand the application of carbon nanotubes2 seem to be very promising, since these new materials allow the enhancement of speed, sensitivity and versatility of the sensors. Moreover, the combination of these materials can considerably improve sensor performances, but in this context, the knowledge of the contribute of each species is a key point for the development of the new device. For this purpose, electrodes with conducting polymers and carbon nanotubes have been prepared and characterized by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) in order to establish the position importance and the individual role of each component. In particular, Brilliant Green (BG), which belongs to the triphenylmethane family, has been electrochemically polymerized by cyclic voltammetry on bare carbon film electrodes (CFE) and for the first time on carbon nanotubes (CNTs) and poly(3,4-ethylenedioxythiophene)3 (PEDOT) modified carbon film electrodes. The analytical performances of different electrode architectures towards hydrogen peroxide detection4 allowed the choice of the best electrode configuration for further application in sensor and biosensor construction5. References [1] Rajesh, T. Ahuja, D. Kumar, Sens. Actuators B, (2009), 136, 275. [2] J.J. Gooding, Electrochim. Acta, (2005), 50, 3049. [3] S. Kakhki, M.M. Barsan, E. Shams, C.M.A. Brett, Synth. Met., (2012), 161, 2718. [4] W. Chen, S. Cai, Q-Q. Ren, W. Wen, Y.-D. Zhao, Analyst, (2012), 137, 49. [5] V. Pifferi, M.M. Barsan, M.E. Ghica, L. Falciola, C.M.A. Brett, Electrochimica Acta (2013), 98, 199.
Settore CHIM/01 - Chimica Analitica
Settore CHIM/02 - Chimica Fisica
Characterization and electroanalytical applications of different electrode architectures based on PEDOT, poly(brilliant green) and carbon nanotubes / V. Pifferi, M.M. Barsan, M.E. Ghica, L. Falciola, C.M.A. Brett. ((Intervento presentato al convegno Giornata del Gruppo Interdivisionale Sensori della Società Chimica Italiana tenutosi a Sestri Levante nel 2013.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/387187
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