Electrodeposited Pt-Ir electrodes: characterization and electrocatalytic activity for the reduction of the nitrate ion

被引：0

作者：

M. Soledad Ureta-Zañartu

Claudia Yáñez

Gloria Reyes

José Ramón Gancedo

José F. Marco

机构：

[1] Departamento de Ciencias Químicas,

[2] Facultad de Química y Biología,undefined

[3] USACH,undefined

[4] Casilla 40,undefined

[5] Santiago-33 Chile,undefined

[6] Tel.: +5626820493; Fax: +5626812108 e-mail: mureta@lauca.usach.cl,undefined

[7] Instituto de Química Física “Rocasolano” CSIC,undefined

[8] Serrano 119,undefined

[9] E-28006 Madrid,undefined

[10] Spain,undefined

来源：

Journal of Solid State Electrochemistry | 1998年 / 2卷

关键词：

Key words Nitrate reduction; Bimetallic electrodes; Electrocatalysis;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The activity of Pt-Ir deposits on titanium for the reduction of the nitrate ion in 0.5 M perchloric acid was studied. The electrodes were characterized by SEM-EDAX, XPS and cyclic voltammetry. The activity of the electrodes for the nitrate reduction depended on the Pt-Ir ratio. Repetitive cyclic voltammograms produced an enrichment of the electrode surface with Ir and a decrease of the catalytic activity. A synergistic effect in the electrodes with low iridium content is discussed.

引用

页码：191 / 197

页数：6