Unusual oxygen detection by means of a solid state sensor based on a CaZr0.9In0.1O3-δ proton-conducting electrolyte

被引：8

作者：

Kalyakin, Anatoly S. ^{[1
]}

Lyagaeva, Julia Yu ^{[1
,2
]}

Volkov, Alexander N. ^{[1
]}

Medvedev, Dmitry A. ^{[1
,2
]}

机构：

[1] Inst High Temp Electrochem, Lab Electrochem Devices Based Solid Oxide Proton, Ekaterinburg 620990, Russia

[2] Ural Fed Univ, Ekaterinburg 620002, Russia

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2019年 / 844卷

关键词：

Amperometric analysis; Solid state electrochemical sensors; Proton-conducting electrolytes; CaZrO3; Limiting current; HYDROGEN SENSOR; ELECTRICAL-CONDUCTIVITY; OXIDE; PERFORMANCE; STABILITY; CERAMICS; CAZRO3; CELLS;

D O I：

10.1016/j.jelechem.2019.05.003

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

This work reports the unusual results on studying the operability and capability of a solid state electrochemical sensor based on a proton-conducting material to analyze the oxygen concentration in a gas media at elevated temperatures. This sensor consists of two ceramic parts made of CaZr0.9In0.1O3-delta, one of which acts as a hydrogen pump element, while another as a potentiometric detection element. A limiting current, occurring at a certain voltage value applied to the former element, is a sensor's response; it forms the concentration or temperature calibration curves, which can be used for the subsequent electrochemical analysis at high temperatures. The presented results expand the possibilities for utilizing the proton-conducting materials in new electrochemical (analytical) directions.

引用

页码：23 / 26

页数：4

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