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Ion transport across liquid vertical bar liquid interfacial boundaries monitored at generator-collector electrodes

Anion transfer processes at a liquid|liquid interface were studied with an interdigitated gold band array electrode. The organic phase, 4-(3-phenylpropyl)-pyridine containing Co(II)phthalocyanine, was immobilised as random droplets at the electrode surface and then immersed into aqueous electrolyte....

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Main Authors: Ibrahim, Norahim, A., Vuorema, H., Meadows, J., Del Campo, M., Cortina-Puig, M. Y., Vagin, A. A., Karyakin, M., Sillanpaa, F., Marken
Format: Article
Published: John Wiley & Sons, Inc 2010
Subjects:
Q Science (General)
Online Access:http://eprints.utm.my/id/eprint/26236/
http://dx.doi.org/10.1002/elan.201000368
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spelling my.utm.262362018-10-31T12:20:30Z http://eprints.utm.my/id/eprint/26236/ Ion transport across liquid vertical bar liquid interfacial boundaries monitored at generator-collector electrodes Ibrahim, Norahim A., Vuorema H., Meadows J., Del Campo M., Cortina-Puig M. Y., Vagin A. A., Karyakin M., Sillanpaa F., Marken Q Science (General) Anion transfer processes at a liquid|liquid interface were studied with an interdigitated gold band array electrode. The organic phase, 4-(3-phenylpropyl)-pyridine containing Co(II)phthalocyanine, was immobilised as random droplets at the electrode surface and then immersed into aqueous electrolyte. Oxidation of Co(II)phthalocyanine at the generator electrode was shown to be associated with anion transfer from the aqueous into the organic phase. The corresponding back reduction at the collector electrode with anion expulsion was delayed by the anion/cation diffusion time across the interelectrode gap. A working curve based on a finite difference numerical simulation model was employed to estimate the apparent diffusion coefficients for anions in the organic phase (PF6−<ClO4−<NO3−). Potential applications in ion analysis are discussed. John Wiley & Sons, Inc 2010 Article PeerReviewed Ibrahim, Norahim and A., Vuorema and H., Meadows and J., Del Campo and M., Cortina-Puig and M. Y., Vagin and A. A., Karyakin and M., Sillanpaa and F., Marken (2010) Ion transport across liquid vertical bar liquid interfacial boundaries monitored at generator-collector electrodes. Electroanalysis, 22 (24). 2889 - 2896. ISSN 1040-0397 http://dx.doi.org/10.1002/elan.201000368 DOI:10.1002/elan.201000368
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic Q Science (General)
spellingShingle Q Science (General)
Ibrahim, Norahim
A., Vuorema
H., Meadows
J., Del Campo
M., Cortina-Puig
M. Y., Vagin
A. A., Karyakin
M., Sillanpaa
F., Marken
Ion transport across liquid vertical bar liquid interfacial boundaries monitored at generator-collector electrodes
description Anion transfer processes at a liquid|liquid interface were studied with an interdigitated gold band array electrode. The organic phase, 4-(3-phenylpropyl)-pyridine containing Co(II)phthalocyanine, was immobilised as random droplets at the electrode surface and then immersed into aqueous electrolyte. Oxidation of Co(II)phthalocyanine at the generator electrode was shown to be associated with anion transfer from the aqueous into the organic phase. The corresponding back reduction at the collector electrode with anion expulsion was delayed by the anion/cation diffusion time across the interelectrode gap. A working curve based on a finite difference numerical simulation model was employed to estimate the apparent diffusion coefficients for anions in the organic phase (PF6−<ClO4−<NO3−). Potential applications in ion analysis are discussed.
format Article
author Ibrahim, Norahim
A., Vuorema
H., Meadows
J., Del Campo
M., Cortina-Puig
M. Y., Vagin
A. A., Karyakin
M., Sillanpaa
F., Marken
author_facet Ibrahim, Norahim
A., Vuorema
H., Meadows
J., Del Campo
M., Cortina-Puig
M. Y., Vagin
A. A., Karyakin
M., Sillanpaa
F., Marken
author_sort Ibrahim, Norahim
title Ion transport across liquid vertical bar liquid interfacial boundaries monitored at generator-collector electrodes
title_short Ion transport across liquid vertical bar liquid interfacial boundaries monitored at generator-collector electrodes
title_full Ion transport across liquid vertical bar liquid interfacial boundaries monitored at generator-collector electrodes
title_fullStr Ion transport across liquid vertical bar liquid interfacial boundaries monitored at generator-collector electrodes
title_full_unstemmed Ion transport across liquid vertical bar liquid interfacial boundaries monitored at generator-collector electrodes
title_sort ion transport across liquid vertical bar liquid interfacial boundaries monitored at generator-collector electrodes
publisher John Wiley & Sons, Inc
publishDate 2010
url http://eprints.utm.my/id/eprint/26236/
http://dx.doi.org/10.1002/elan.201000368
_version_ 1643647717339037696
score 13.211869

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