標題: | Electrooxidation of catecholamines at carbon nanotube-modified indium tin oxide electrodes |
作者: | Lin, Kuan-Wen Lin, Chang-Hao Hsieh, You-Zung 應用化學系 Department of Applied Chemistry |
關鍵字: | carbon nanotubes;electroanalysis;Nafion;tin indium oxide |
公開日期: | 30-六月-2008 |
摘要: | 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. (C) 2008 Elsevier B.V. All rights reserved. |
URI: | http://dx.doi.org/10.1016/j.aca.2008.03.014 http://hdl.handle.net/11536/29364 |
ISSN: | 0003-2670 |
DOI: | 10.1016/j.aca.2008.03.014 |
期刊: | ANALYTICA CHIMICA ACTA |
Volume: | 619 |
Issue: | 1 |
起始頁: | 49 |
結束頁: | 53 |
顯示於類別: | 會議論文 |