Abstract
In this study, we prepared carbon nanotube (CNT)/Nafion-modified ITO electrodes and investigated their electrochemical behavior. The CNTs were dissolved in a solution of the ionic polymer Nafion and then CNT/Nafion composite films were deposited onto ITO electrodes through spin-coating of this homogeneous solution. We studied the effects of chemical pretreatment of the CNTs and the pH of the buffer on the electroanalytical behavior of the CNT/Nafion-modified ITO electrodes toward catecholamines. The modified electrodes enhanced the peak current and lowered the overpotentials. We observed high electrooxidative performance for the modified ITO electrodes: the oxidative currents of the catecholamines were up to 125-fold higher than those obtained using bare ITO electrodes.
Original language | English |
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Pages (from-to) | 49-53 |
Number of pages | 5 |
Journal | Analytica Chimica Acta |
Volume | 619 |
Issue number | 1 |
DOIs | |
State | Published - 30 Jun 2008 |
Keywords
- Carbon nanotubes
- Electroanalysis
- Nafion
- Tin indium oxide