Chemically modified multiwall carbon nanotube composite electrodes: An assessment of fabrication strategies
File(s)
Accepted version
Author(s)
Fagan-Murphy, A
Allen, MC
Patel, BA
Type
Journal Article
Abstract
Chemically modified electrodes have been widely used to enhance electrochemical monitoring of analytes that are not easily detected using traditional base conductive materials. We have investigated different fabrication approaches to chemically modify multi-wall carbon nanotube (MWCNT) composite electrodes with Prussian blue (PB). Composite electrodes were made where Prussian blue was mixed with MWNCTs, where Prussian blue was coated on MWCNT composite electrodes and where MWCNTs were modified by generating PB on the surface of MWCNTs. Our findings indicate that MWCNT modified PB electrodes provided good sensitivity for the detection of glutathione and exceptional stability; whilst MWCNT coated PB electrodes provided excellent sensitivity but poor stability. Such findings provide important implications on the fabrication, suitability and use of chemically modified electrodes for electroanalysis.
Date Issued
2015-01-10
Date Acceptance
2014-11-21
Citation
Electrochimica Acta, 2015, 152, pp.249-254
ISSN
1873-3859
Publisher
Elsevier
Start Page
249
End Page
254
Journal / Book Title
Electrochimica Acta
Volume
152
Copyright Statement
© 2015, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Subjects
Science & Technology
Physical Sciences
Electrochemistry
multiwall carbon nanotubes
Electrodes
chemical sensors
Prussian blue
glutathione
PRUSSIAN BLUE
ELECTROCATALYTIC ACTIVITY
IN-VIVO
GLUTATHIONE
ELECTROANALYSIS
SEROTONIN
BEHAVIOR
Publication Status
Published