Oxygen reduction by decamethylferrocene at liquid/liquid interfaces catalyzed by dodecylaniline

被引：36

作者：

Su, Bin ^{[1
]}

Hatay, Imren ^{[1
,2
]}

Li, Fei ^{[1
]}

Partovi-Nia, Raheleh ^{[1
]}

Mendez, Manuel A. ^{[1
]}

Samec, Zdenek ^{[3
]}

Ersoz, Mustafa ^{[2
]}

Girault, Hubert H. ^{[1
]}

机构：

[1] Ecole Polytech Fed Lausanne, Lab Electrochim Phys & Analyt, Stn 6, CH-1015 Lausanne, Switzerland

[2] Selcuk Univ, Dept Chem, TR-42031 Konya, Turkey

[3] Acad Sci Czech Republ, J Heyrovsky Inst Phys Chem, Vvi, CR-18223 Prague 8, Czech Republic

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2010年 / 639卷 / 1-2期

关键词：

Oxygen reduction; Proton reduction; Decamethylferrocene; Liquid/liquid interface; Voltammetry; IMMISCIBLE ELECTROLYTE-SOLUTIONS; FERROCENE DERIVATIVES; POLARIZED INTERFACE; MOLECULAR-OXYGEN; PROTON-TRANSFER; LIQUID; MECHANISM; DIOXYGEN; WATER; ELECTROCATALYSIS;

D O I：

10.1016/j.jelechem.2009.11.029

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

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.

引用

页码：102 / 108

页数：7

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