Published January 1, 2010
| Version v1
Journal article
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Oxygen reduction by decamethylferrocene at liquid/liquid interfaces catalyzed by dodecylaniline
Creators
- 1. Ecole Polytech Fed Lausanne, Lab Electrochim Phys & Analyt, Stn 6, CH-1015 Lausanne, Switzerland
- 2. Acad Sci Czech Republ, J Heyrovsky Inst Phys Chem, Vvi, CR-18223 Prague 8, Czech Republic
- 3. Selcuk Univ, Dept Chem, TR-42031 Konya, Turkey
Description
Molecular oxygen (O-2) reduction by decamethylferrocene (DMFc) was investigated at a polarized water/1,2-dichloroethane (DCE) interface. Electrochemical results point to a mechanism similar to the EC type reaction at the conventional electrode/solution interface, in which an assisted proton transfer (APT) by DMFc across the water/DCE interface via the formation of DMFcH(+) corresponds to the electrochemical step and O-2 reduction to hydrogen peroxide (H2O2) represents the chemical step. The proton transfer step can also be driven using lipophilic bases such as 4-dodecylaniline. Finally, voltammetric data shows that lipophilic DMFc can also be extracted to the aqueous acidic phase to react homogeneously with oxygen. (C) 2009 Elsevier B.V. All rights reserved.
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