On the ability of ruthenium to stabilize polynuclear hexacyanometallate film electrodes

被引：54

作者：

Cataldi, TRI ^{[1
]}

De Benedetto, GE ^{[1
]}

机构：

[1] Univ Basilicata, Dipartimento Chim, I-85100 Potenza, Italy

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 1998年 / 458卷 / 1-2期

关键词：

polynuclear inorganic films; polynuclear hexacyanometallate film electrodes; ruthenium;

D O I：

10.1016/S0022-0728(98)00327-1

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A novel procedure that yields extremely stable ruthenium-modified inorganic film electrodes is presented. The following prussian blue (PB) analogues were investigated: indium(III)-hexacyanoferrate (InHCF), nickel(II)-hexacyanoferrate (NiHCF), cobalt(II)-hexacyanoferrate (CoHCF), and iron(III)-hexacyanorutenate also known as ruthenium purple (RP). The process includes electrochemical film deposition and subsequent voltammetric conditioning in a Ru(III)-containing solution at pH 2. Electrochemical and spectroscopic properties of each resulting modified film are better defined, redox and switching rates improved, and stability strongly enhanced. XPS supports the conclusions that the incorporation of ruthenium imparts an extensive crosslinking between hydrate microparticles through dinuclear [Fe, Ru] oxo (-O-) and cyanide (-CN-) bridges. (C) 1998 Elsevier Science S.A. All rights reserved.

引用

页码：149 / 154

页数：6

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