A CO2 sensor based on a Sc3+ conducting SC1/3Zr2(PO4)3 solid electrolyte

被引：17
|
作者：
Tamura, S [1 ]
Imanaka, N [1 ]
Kamikawa, M [1 ]
Adachi, G [1 ]
机构：
[1] Osaka Univ, Fac Engn, Dept Appl Chem, Suita, Osaka 5650871, Japan
来源：
SENSORS AND ACTUATORS B-CHEMICAL | 2001年 / 73卷 / 2-3期
基金：
日本学术振兴会;
关键词：
carbon dioxide sensor; phosphate; SC3+ conductor; YSZ; scandium oxide;
D O I：
10.1016/S0925-4005(00)00702-4
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A compact CO2 sensor based on the combination of newly developed trivalent Sc3+ conducting solid electrolyte, Sc1/3Zr2(PO4)(3). and yttria stabilized zirconia (YSZ) was fabricated with Li2CO3 as an auxiliary electrode. The present sensor shows both a high sensitivity such as quick, theoretical and reproducible response and also a high selectivity for CO2. Furthermore, the sensor also has a long-term stability because the stable oxide (Sc2O3) is formed at the interface between Sc1/3Zr2(PO4)(3) and YSZ. Since, the Sc1/3Zr2(PO4)(3) is chemically stable and has a high mechanical strength, the present sensor is expected to be applied for a practical device. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：205 / 210
页数：6
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