Simultaneous determination of chlorine and oxygen evolving at RuO2/Ti and RuO2-TiO2/Ti anodes by differential electrochemical mass spectroscopy

被引：76

作者：

Arikawa, T ^{[1
]}

Murakami, Y ^{[1
]}

Takasu, Y ^{[1
]}

机构：

[1] Shinshu Univ, Fac Text Sci & Technol, Dept Fine Mat Engn, Ueda, Nagano 386, Japan

来源：

JOURNAL OF APPLIED ELECTROCHEMISTRY | 1998年 / 28卷 / 05期

关键词：

ruthenium oxide; titanium oxide; chlorine; oxygen; DEMS; porous electrode;

D O I：

10.1023/A:1003269228566

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Chlorine and oxygen evolving at RuO2/Ti and RuO2-TiO2/Ti anodes have been simultaneously determined at electrode potentials from 1.0 to about 2 V (vs Ag/AgCl) by differential electrochemical mass spectroscopy (DEMS). On the RuO2/Ti anodes, the threshold electrode potential for oxygen evolution increased with a decrease in RuO2 loading, while the chlorine evolution potential was unchanged. Low RuO2 loading anodes gave a high chlorine evolution ratio under various constant electrolysis potentials. On the RuO2-TiO2/Ti anodes, the threshold electrode potential for oxygen evolution increased with an increase in the TiO2 content more remarkably than that for chlorine evolution. High TiO2 content anodes gave a high chlorine evolution ratio at various constant electrolysis potentials. The combination of RuO2 and TiO2 exhibits a remarkable effect with respect to the enhancement of chlorine evolution selectivity.

引用

页码：511 / 516

页数：6

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