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
收藏
页码：191 / 197
页数：7
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