POTENTIOMETRIC GAS SENSORS BASED ON FAST SOLID ELECTROLYTES

被引：66

作者：

HOTZEL, G ^{[1
]}

WEPPNER, W ^{[1
]}

机构：

[1] MAX PLANCK INST FESTKORPERFORSCH,D-7000 STUTTGART 80,FED REP GER

来源：

SENSORS AND ACTUATORS | 1987年 / 12卷 / 04期

关键词：

CARBON DIOXIDE - Monitoring - ELECTROLYTES; SOLID - Applications - NITROGEN COMPOUNDS - Monitoring - OXYGEN - Monitoring;

D O I：

10.1016/0250-6874(87)80063-X

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The application of small all-solid-state galvanic cells for monitoring NO//2, CO//2 and O//2 partial pressures at ambient or slightly increased temperatures is demonstrated. The approach makes use of a gas-sensitive mixed conducting thin layer, which rapidly relates the activity of the gaseous species to the activity of the mobile component according to the Gibbs-Duhem relationship. A reversible change of the potential as a function of the partial gas pressure is observed for the different galvanic cells, which are preferably based on Na** plus - beta / beta double prime -alumina and alpha -AgI solid electrolytes.

引用

页码：449 / 453

页数：5

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