聚苯胺
抗坏血酸
聚丙烯酸
Nafion公司
碳纳米管
材料科学
复合数
电极
化学工程
电化学
循环伏安法
苯胺
无机化学
化学
复合材料
聚合物
有机化学
聚合
物理化学
工程类
食品科学
作者
Ida Tiwari,Karan Pratap Singh,Manorama Singh,Craig E. Banks
出处
期刊:Analytical Methods
[The Royal Society of Chemistry]
日期:2011-12-02
卷期号:4 (1): 118-124
被引量:49
摘要
A multi-walled carbon nanotube composite electrode incorporating Polyaniline (PANI) and Polyacrylic acid (PAA) is presented by diffusing aniline and PAA into Nafion- MWCNTs membranes supported upon a platinum macrodisc electrode. Nafion is found to be an ideal medium for dispersion of MWCNTs and for the formation of a homogeneous composite. The composite has been characterized utilizing SEM, TEM, FT-IR and electrochemical techniques. Electrochemical characterization reveals that the redox activity of the composite is improved with the cumulative effect of MWCNTs and PAA as additives. The electroanalytical behavior of the composite is evaluated towards the sensing of ascorbic acid in the presence of dopamine and uric acid exhibiting a detection limit of 2.5 × 10−7 M.
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