PERFORMANCE-CHARACTERISTICS OF SODIUM SUPER IONIC CONDUCTOR PREPARED BY THE SOL-GEL ROUTE FOR SODIUM-ION SENSORS

被引：51

作者：

CANEIRO, A ^{[1
]}

FABRY, P ^{[1
]}

KHIREDDINE, H ^{[1
]}

SIEBERT, E ^{[1
]}

机构：

[1] LAB ION & ELECTROCHIM SOLIDE GRENOBLE,ECOLE NATL SUPER ELECTROCHIM & ELECTROMET GRENOBLE,BP 75,F-38402 ST MARTIN DHERES,FRANCE

来源：

ANALYTICAL CHEMISTRY | 1991年 / 63卷 / 22期

关键词：

D O I：

10.1021/ac00022a004

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

NASICON (Na(1+x)Zr2Si(x)P(3-x)O12) is a new ceramic material and is a fast ionic conductor by Na+. It was initially proposed for use as an ion-sensitive membrane for ISE or ISFET devices some years ago. The sol-gel route is used here to prepare high-density samples. Some physicochemical characteristics such as structure, conductivity, and solubility are described. Results on ISEs made with this material are presented including ion-exchange kinetics, detection limit, and selectivity coefficients. A sintering temperature influence is observed. The performance characteristics are compared to those of a commercial glass membrane; the detection limit is slightly poorer than for the commercial ISEs but selectivity is always better (up to 10 times). A considerable sintering temperature influence is observed on the interfering proton phenomenon: the higher the temperature, the smaller the effect.

引用

页码：2550 / 2557

页数：8

共 37 条

[1] DEPENDENCE OF THE PROPERTIES OF NASICONS ON THEIR COMPOSITION AND PROCESSING [J].