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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Bibliographic Details
Published inJournal of solid state electrochemistry Vol. 16; no. 10; pp. 3179 - 3187
Main Authors Zhu, Qing-Gong, Sujari, Amat Ngilmi Ahmad, Ab Ghani, Sulaiman
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer-Verlag 01.10.2012
Subjects
Analytical Chemistry
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Condensed Matter Physics
Electrochemistry
Energy Storage
Original Paper
Physical Chemistry
Hardness
Carboxylic multiwalled carbon nanotubes
Composite pencil graphite
Electrophoretic deposition
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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 .
ISSN:1432-8488
1433-0768
DOI:10.1007/s10008-012-1749-9