Effect of heat treatment on catalytic activity for oxygen reduction reaction of TaOxNy/Ti prepared by electrophoretic deposition

被引：43

作者：

Shibata, Yohei ^{[1
]}

Ishihara, Akimitsu ^{[1
]}

Mitsushima, Shigenori ^{[1
]}

Kamiya, Nobuyuki ^{[1
]}

Ota, Ken-ichiro ^{[1
]}

机构：

[1] Yokohama Natl Univ, Chem Energy Lab, Kanagawa 2408501, Japan

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2007年 / 10卷 / 02期

关键词：

D O I：

10.1149/1.2402983

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The catalytic activity for the oxygen reduction reaction (ORR) of TaOxNy/Ti, which was prepared by electrophoretic deposition and heat treatment in the temperature range from 700 to 1000 degrees C under flowing N-2 containing 0.1% oxygen, was investigated. The solubility of the TaOxNy powder heat-treated at 800 degrees C was less than 3.3 x 10(-7) mol dm(-3) in 0.1 mol dm(-3) H2SO4 at 50 degrees C under atmospheric conditions. This shows that TaOxNy had a high chemical stability in an acid solution. The catalytic activity for the ORR significantly depended on the heat-treatment temperature, and TaOxNy/Ti heat-treated at 900 degrees C showed the highest activity. (c) 2006 The Electrochemical Society.

引用

页码：B43 / B46

页数：4

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