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

被引：10

作者：

Ureta-Zanartu, MS

Yanez, C

Reyes, G

Gancedo, JR

Marco, JF

机构：

[1] Univ Santiago Chile, Fac Quim & Biol, Dept Ciencias Quim, Santiago 33, Chile

[2] CSIC, Inst Quim Fis Rocasolano, E-28006 Madrid, Spain

来源：

JOURNAL OF SOLID STATE ELECTROCHEMISTRY | 1998年 / 2卷 / 03期

关键词：

nitrate reduction; bimetallic electrodes; electrocatalysis;

D O I：

10.1007/s100080050086

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

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：7

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