Electrochemical comparison between IrO2 prepared by thermal treatment of iridium metal and IrO2 prepared by thermal decomposition of H2IrCl6 solution

被引：89

作者：

Fierro, Stephane ^{[1
]}

Kapalka, Agnieszka ^{[1
]}

Comninellis, Christos ^{[1
]}

机构：

[1] Ecole Polytech Fed Lausanne, Swiss Fed Inst Technol, Inst Chem Sci & Engn, ISIC, CH-1015 Lausanne, Switzerland

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2010年 / 12卷 / 01期

关键词：

IrO2; Thermal decomposition of H2IrCl6; Thermal treatment of metallic Ir; Oxygen evolution; Formic acid oxidation; Surface redox activity; OXYGEN EVOLUTION REACTION; FORMIC-ACID OXIDATION; TI/IRO2; ELECTRODES;

D O I：

10.1016/j.elecom.2009.11.018

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The surface redox activities, the oxygen evolution reaction (OER), the oxidation of formic acid (FA) and the anodic stability have been investigated and compared on IrO2 electrodes prepared by two techniques: the thermal decomposition of H2IrCl6 precursor (TDIROF) and the thermal treatment of metallic iridium (TOIROF). It was found, that the surface redox activities involved on both IrO2-based electrodes are similar. Concerning the oxygen evolution reaction and the oxidation of formic acid, both films show similar mechanism. The electrode stability measurements have shown that both films are not corroded under strong OER or organics oxidation conditions and therefore, to summarize, both IrO2-based films exhibit similar electrochemical behaviours. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：172 / 174

页数：3

共 14 条

[1] HETEROGENEOUS REDOX CATALYSIS WITH TITANIUM CHROMIUM(III) OXIDE + TIO2 COMPOSITE ANODES [J].