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Polarised liquid/liquid micro-interfaces move during charge transfer
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Dale, Sara E. C. and Unwin, Patrick R. (2008) Polarised liquid/liquid micro-interfaces move during charge transfer. Electrochemistry Communications, Vol.10 (No.5). pp. 723-726. doi:10.1016/j.elecom.2008.02.023
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Official URL: http://dx.doi.org/10.1016/j.elecom.2008.02.023
Abstract
The externally polarised micro-interface between two immiscible electrolyte solutions (ITIES) has been visualised during ion transfer using confocal laser scanning microscopy (CLSM). A water vertical bar 1,2-dichloroethane (DCE) micro-interface was formed at the tip of a glass micropipette. The DCE phase contained Nile Red, a fluorophore, which was used to visualise movements in the interface with CLSM. During voltammetric transfer of tetraethylammonium cation from the aqueous phase to DCE (in the micropipette), the interface - with and without adsorbed lipid - was found to undergo significant expansion. The movement of the interface was found to be completely reversible and rapid, as evident from potential step measurements. The studies reported herein have implications for studies of charge transfer at micro-ITIES which generally assume a static interface. (C) 2008 Elsevier B.V. All rights reserved.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QD Chemistry | ||||
| Divisions: | Faculty of Science > Chemistry | ||||
| Library of Congress Subject Headings (LCSH): | Liquid-liquid interfaces, Ionic mobility, Charge transfer, Micropipettes, Confocal microscopy | ||||
| Journal or Publication Title: | Electrochemistry Communications | ||||
| Publisher: | Elsevier Inc. | ||||
| ISSN: | 1388-2481 | ||||
| Official Date: | May 2008 | ||||
| Dates: |
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| Volume: | Vol.10 | ||||
| Number: | No.5 | ||||
| Number of Pages: | 4 | ||||
| Page Range: | pp. 723-726 | ||||
| DOI: | 10.1016/j.elecom.2008.02.023 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access | ||||
| Funder: | Engineering and Physical Sciences Research Council (EPSRC), Syngenta UK |
Data sourced from Thomson Reuters' Web of Knowledge
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