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New electrode surfaces for solid | liquid | liquid triple phase boundary electrochemistry

Frank Marken ,  Mohamed Ghanem 

University of Bath, Department of Chemistry, Claverton Down, Bath BA2-7AY, United Kingdom


Processes at electrode surfaces strongly depend on the nature of the solid | liquid (electrolyte) interaction. This is also the case for processes at solid | liquid | liquid line interfaces and demonstrated here for the case of electrochemical processes at electrode | organic liquid | aqueous electrolyte triple phase boundaries.Experimental data are obtained at metal, carbon, and ceramic electrodes and for porphyrinato metal complexes immobilised in water-immiscible organic liquids in contact with an aqueous electrolyte [1]. Voltammetric data are discussed and the porosity of surfaces identified as a key parameter for optimising electrochemically driven ion transfer processes. Both the transfer of inert ions and facilitated ion transfer are considered.

[1] F. Marken, K. J. McKenzie, G. Shul, M. Opallo, Faraday Discussions, 129 (2005) 219.


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Related papers

Presentation: Keynote lecture at SMCBS'2005 Workshop, by Frank Marken
See On-line Journal of SMCBS'2005 Workshop

Submitted: 2005-08-05 17:24
Revised:   2009-06-07 00:44