Liquid-liquid ion transport junctions based on paired gold electrodes in generator-collector mode

French, Robert W., Chan, Yohan, Bulman Page, Philip and Marken, Frank (2009) Liquid-liquid ion transport junctions based on paired gold electrodes in generator-collector mode. ELECTROPHORESIS, 30 (19). pp. 3361-3365. ISSN 1522-2683

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Abstract

Simultaneous electrochemically driven double anion transfer across liquid–liquid interfaces is demonstrated at a gold–gold junction electrode. In the presence of two closely spaced electrodes (generator and collector), anion uptake into the organic phase (oxidation) and anion expulsion into the aqueous phase (reduction) can be combined to result in a generator–collector anion transport system across the liquid–liquid interface. In this report we are employing a paired gold junction grown by electro-deposition to ca. 5?µm gap size with the N,N-diethyl-N',N'-didodecyl-phenylene-diamine water immiscible redox liquid immobilized into the gap to demonstrate simultaneous perchlorate anion uptake and expulsion. The effects of redox liquid volume and scan rate on the magnitude of currents and two mechanistic pathways for ion transport are discussed in the context of micro-electrophoretic processes.

Item Type: Article
Faculty \ School: Faculty of Science > School of Chemistry
University of East Anglia > Faculty of Science > Research Groups > Synthetic Chemistry
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Depositing User: Rachel Smith
Date Deposited: 22 Mar 2011 12:09
Last Modified: 25 Jul 2018 04:38
URI: https://ueaeprints.uea.ac.uk/id/eprint/26845
DOI: 10.1002/elps.200900083

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