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Electroanalytical applications based on carbon nanotube/prussian blue screen-printable composite

Title
Electroanalytical applications based on carbon nanotube/prussian blue screen-printable composite
Authors
Shim J.H.Lee J.S.Cha G.S.Nam H.
Ewha Authors
심준호
Issue Date
2010
Journal Title
Bulletin of the Korean Chemical Society
ISSN
0253-2964JCR Link
Citation
vol. 31, no. 6, pp. 1583 - 1588
Indexed
SCI; SCIE; SCOPUS; KCI WOS scopus
Abstract
A single step fabrication process of carbon nanotube/Prussian Blue (CNT/PB) paste electrodes based on screen printing technology has been studied as an amperometric sensor for the determination of hydrogen peroxide and free chlorine. Compared to the classical carbon paste (CP) electrode, the CNT paste electrode greatly enhanced the response in the presence of hydrogen peroxide due to the electrocatalytic activity of the CNT. Based on the CNT/binder paste, PB was also incorporated into a network of CNT paste and characterized. The best electroanalytical properties of PB-mixed sensors to hydrogen peroxide were obtained with PB ratio of 10 wt % composition, which showed fast response tμMe (t 90 ≤ 5 s; 0.2 - 0.3 mM), low detection lμMit of 1.0

μM, good linear response in the range from 5.0 × 10 -5 - 1.0 × 10 -3 mol L -1 (r 2 = 0.9998), and high sensitivity of -8.21 μA mM -1. In order to confirm the enhanced electrochemical properties of CNT/PB electrode, the sensor was further applied for the determination of chlorine in water which exhibited a linear response behavior in the range of 50 - 2000 ppb for chlorine with a slope of 1.10 μA ppm -1 (r 2 = 9971).
DOI
10.5012/bkcs.2010.31.6.1583
Appears in Collections:
연구기관 > 신재생에너지연구센터 > Journal papers
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