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-Jun-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
Appears in Collections:Conferences Paper


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