Electrophoretic deposited MWCNT composite graphite pencils and its uses to determine hyperin
A simple, fast, and effective method of fabricating electrochemical sensors using composite pencil graphite (CPG) lead modified with carboxylic multiwalled carbon nanotube (c-MWCNT) via electrophoretic deposition (EPD) has been developed. The EPD of c-MWCNT film on the CPG electrode (CPGE) was carri...
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Published in | Journal of solid state electrochemistry Vol. 16; no. 10; pp. 3179 - 3187 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
Berlin/Heidelberg
Springer-Verlag
01.10.2012
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Subjects | |
Online Access | Get full text |
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Summary: | A simple, fast, and effective method of fabricating electrochemical sensors using composite pencil graphite (CPG) lead modified with carboxylic multiwalled carbon nanotube (c-MWCNT) via electrophoretic deposition (EPD) has been developed. The EPD of c-MWCNT film on the CPG electrode (CPGE) was carried out at a constant applied potential of 25 V and deposition time of 1 min. The electrochemical performances of the modified CPGE, i.e., c-MWCNT/CPGE, in Fe(CN)
6
4−/3−
has been studied by cyclic voltammetry and electrochemical impedance spectroscopy (EIS). The c-MWCNT/CPGE has better current density, onset potentials, and charge transfer resistances than the CPGE. The c-MWCNT/CPGE has been successfully used to analyze hyperin in dry fruits of
Acanthopanax sessiliflorus
. |
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ISSN: | 1432-8488 1433-0768 |
DOI: | 10.1007/s10008-012-1749-9 |