Mesoporous platinum hosts for electrode|liquid|liquid -: Triple phase boundary redox systems

被引：33

作者：

Ghanem, MA ^{[1
]}

Marken, F

机构：

[1] Fac Petr & Min Engn, Sci & Math Dept, Suez, Egypt

[2] Univ Bath, Dept Chem, Bath BA2 7AY, Avon, England

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2005年 / 7卷 / 12期

基金：

英国工程与自然科学研究理事会;

关键词：

voltammetry; liquid-liquid interface; triple phase boundary; mesoporous platinum; electrodeposition; liquid crystal templates; porphyrin; ion transfers; sensors;

D O I：

10.1016/j.elecom.2005.09.013

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Mesoporous metal hosts are attractive electrode materials for complex electrode reactions, for example those involving a system of two immiscible liquids. Here we show that a solution of tetraohenylporphyrianto manganese (MnTPP) in 4-(3-phenylpropyl)-pyridine (PPP) organic liquid can be immobilized into mesoporous platinum thin films electrodeposited from a liquid crystalline template. When immersed in an aqueous solution, the organic liquid remains immobilized inside the mesoporous platinum framework. Well-defined, stable, and reproducible ion transfer voltammograms are recorded. The effects of mesoporous platinum membrane thickness (volume), scan rate, and the type of aqueous electrolyte anion (for Cl-, PF6-, ClO4- CN-, SCN- and NO3-) are investigated. Mesoporous platinum is proposed as a very effective electrode material for liquid/liquid anion sensing and for other applications of electrochemically driven liquid/liquid redox systems. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：1333 / 1339

页数：7

共 41 条

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