Voltammetry and impedance measurements of Ir(111) electrodes in aqueous solutions

被引：37

作者：

Pajkossy, T ^{[1
]}

Kibler, LA

Kolb, DM

机构：

[1] Univ Ulm, Dept Electrochem, D-89069 Ulm, Germany

[2] Hungarian Acad Sci, Chem Res Ctr, Inst Mat & Environm Chem, H-1025 Budapest, Hungary

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2005年 / 582卷 / 1-2期

关键词：

iridium; adsorption; double-layer; capacitance; potential of zero charge; carbon monoxide;

D O I：

10.1016/j.jelechem.2005.03.019

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The electrochemical behaviour of Ir(1 1 1) electrodes has been studied in simple aqueous solutions, in the presence and absence of various adsorbates: sulphate, phosphate and halide anions. In general, this electrode is very similar to Pt(1 1 1); however, the rates and relative strengths of adsorption are different. In the accessible potential range no capacitance peak similar to that of Pt(1 1 1) was found, and no Gouy-Chapman minimum could be identified. CO adlayer stripping from Ir(1 1 1) in sulphuric acid occurs in the same potential region as for Pt(1 1 1). (C) 2005 Published by Elsevier B.V.

引用

页码：69 / 75

页数：7

共 13 条

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