Reactivity with alkali carbonates of a newly developed oxide ionic conductor, Nd9.83(SiO4)4.5(AlO4)1.5O2 with apatite-type structure

Naoki TAKEDA; Yoshiteru ITAGAKI; Hiromichi AONO; Yoshihiko SADAOKA

doi:10.2109/jcersj2.117.175

Papers

Reactivity with alkali carbonates of a newly developed oxide ionic conductor, Nd_9.83(SiO₄)_4.5(AlO₄)_1.5O₂ with apatite-type structure

Naoki TAKEDA, Yoshiteru ITAGAKI, Hiromichi AONO, Yoshihiko SADAOKA

Author information

Keywords: Oxide ionic conductor, Apatite-type structure, Rare earth silicates, Alkari carbonate, O₂ gas sensor

JOURNAL FREE ACCESS

2009 Volume 117 Issue 1362 Pages 175-178

DOI https://doi.org/10.2109/jcersj2.117.175

Details

Abstract

The reactivity of a newly developed oxygen ionic conductor, Nd_9.83(SiO₄)_4.5(AlO₄)_1.5O₂, with alkali carbonates was examined in air and CO₂. The reactivity of the developed ionic conductor was substantially lower than that of ZrO₂, 3YSZ and 8YSZ in air and also in CO₂. It is concluded that this newly developed oxide is more tolerant to the alkali contamination and is applicable as a potentiometric oxygen concentration gas sensor.

Corresponding author

Register with J-STAGE for free!