Poly-(3-methylthiophene)/carbon nanotubes hybrid composite-modified electrodes
Poly-(3-methylthiophene)/carbon nanotubes hybrid composite-modified electrodes
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DOI：
10.1016/j.electacta.2007.06.051
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发表时间：
2007-11-01
影响因子：
6.6
通讯作者：
Pingarron, J. M.
中科院分区：
文献类型：
--
作者：
Aguei, L.;Pena-Farfal, C.;Pingarron, J. M.
报道了聚- 3 -甲基噻吩-多壁碳纳米管杂化复合电极的制备。杂化电极表现出电催化性能的协同效应，以及导电聚合物和碳纳米管的高活性表面积，这使得NADH的氧化比聚合物修饰电极和碳纳米管修饰电极有显著的改善。SEM结果表明，碳纳米管作为P3MT电聚合的纳米骨架。在+300 mV下的NADH电流检测提供了快速响应，线性范围在5.0 × 10（-7）和2.0 × 10(-5) mol 1（-1）之间，检测限为1.7 × 10(-7) mol 1(-1)，与其他基于NADH碳纳米管的电流传感器相比具有优势。此外，还检查了细胞色素c和FAD在混合电极上的直接电化学，(c) 2007 Elsevier Ltd.。版权所有。
The preparation of poly- (3 -methylthiophene)-multi-walled carbon nanotubes hybrid composite electrodes is reported. The hybrid electrode shows a synergic effect of the electrocatalytic properties, and high active surface area of both the conducting polymer and carbon nanotubes, which gives rise to a remarkable improvement of oxidation of NADH with respect to polymer-modified electrodes, and CNTs-modified electrodes. SEM showed that carbon nanotubes served as nanosized backbone for P3MT electropolymerization. The amperometric NADH detection at +300 mV provided fast responses, a range of linearity between 5.0 x 10(-7) and 2.0 x 10(-5) mol 1(-1), and a detection limit of 1.7 x 10(-7) mol 1(-1), which compares advantageously with those reported for other NADH CNT-based amperometric sensors. Furthermore, the direct electrochemistry of cytochrome c and FAD at the hybrid electrode is also checked, (C) 2007 Elsevier Ltd. All rights reserved.