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Formation of a robust and stable film comprising ionic liquid and polyoxometalate on glassy carbon electrode modified with multiwalled carbon nanotubes: Toward sensitive and fast detection of hydrogen peroxide and iodate

Haghighi, Behzad; Hamidi, Hassan and Gorton, Lo LU (2010) In Electrochimica Acta 55(16). p.4750-4757
Abstract
A robust and stable film comprising n-octylpyridinum hexafluorophosphate ([C8Py][PF6]) and 1:12 phosphomolybdic acid (PMo12) was prepared on glassy carbon electrodes modified with multiwall carbon nanotubes (GCE/MWCNTs) by dip-coating. The cyclic voltammograms of the GCE/MWCNTs/[C8Py][PF6]-PMo12 showed three well-defined pairs of redox peaks due to the PMo12 system. The surface coverage for the immobilized PMo12 and the average values of the electron transfer rate constant for three pairs of redox peaks were evaluated. The GCE/MWCNTs/[C8Py][PF6]-PMo12 showed great electrocatalytic activity towards the reduction of H2O2 and iodate. The kinetic parameters of the catalytic reduction of hydrogen peroxide and iodate at the electrode surface and... (More)
A robust and stable film comprising n-octylpyridinum hexafluorophosphate ([C8Py][PF6]) and 1:12 phosphomolybdic acid (PMo12) was prepared on glassy carbon electrodes modified with multiwall carbon nanotubes (GCE/MWCNTs) by dip-coating. The cyclic voltammograms of the GCE/MWCNTs/[C8Py][PF6]-PMo12 showed three well-defined pairs of redox peaks due to the PMo12 system. The surface coverage for the immobilized PMo12 and the average values of the electron transfer rate constant for three pairs of redox peaks were evaluated. The GCE/MWCNTs/[C8Py][PF6]-PMo12 showed great electrocatalytic activity towards the reduction of H2O2 and iodate. The kinetic parameters of the catalytic reduction of hydrogen peroxide and iodate at the electrode surface and analytical features of the sensor for amperometric determination of hydrogen peroxide and iodate were evaluated. (C) 2010 Elsevier Ltd. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Modified electrode, Phosphomolybdic acid, Ionic liquid, Iodate, H2O2
in
Electrochimica Acta
volume
55
issue
16
pages
4750 - 4757
publisher
Pergamon
external identifiers
  • wos:000278612100012
  • scopus:77953325914
ISSN
0013-4686
DOI
10.1016/j.electacta.2010.03.041
language
English
LU publication?
yes
id
3d689a66-69ef-4b5b-be18-a47557f1ba67 (old id 1631411)
date added to LUP
2010-07-21 12:16:25
date last changed
2018-05-29 10:19:33
@article{3d689a66-69ef-4b5b-be18-a47557f1ba67,
  abstract     = {A robust and stable film comprising n-octylpyridinum hexafluorophosphate ([C8Py][PF6]) and 1:12 phosphomolybdic acid (PMo12) was prepared on glassy carbon electrodes modified with multiwall carbon nanotubes (GCE/MWCNTs) by dip-coating. The cyclic voltammograms of the GCE/MWCNTs/[C8Py][PF6]-PMo12 showed three well-defined pairs of redox peaks due to the PMo12 system. The surface coverage for the immobilized PMo12 and the average values of the electron transfer rate constant for three pairs of redox peaks were evaluated. The GCE/MWCNTs/[C8Py][PF6]-PMo12 showed great electrocatalytic activity towards the reduction of H2O2 and iodate. The kinetic parameters of the catalytic reduction of hydrogen peroxide and iodate at the electrode surface and analytical features of the sensor for amperometric determination of hydrogen peroxide and iodate were evaluated. (C) 2010 Elsevier Ltd. All rights reserved.},
  author       = {Haghighi, Behzad and Hamidi, Hassan and Gorton, Lo},
  issn         = {0013-4686},
  keyword      = {Modified electrode,Phosphomolybdic acid,Ionic liquid,Iodate,H2O2},
  language     = {eng},
  number       = {16},
  pages        = {4750--4757},
  publisher    = {Pergamon},
  series       = {Electrochimica Acta},
  title        = {Formation of a robust and stable film comprising ionic liquid and polyoxometalate on glassy carbon electrode modified with multiwalled carbon nanotubes: Toward sensitive and fast detection of hydrogen peroxide and iodate},
  url          = {http://dx.doi.org/10.1016/j.electacta.2010.03.041},
  volume       = {55},
  year         = {2010},
}