Development of an Electrochemical Oxygen Sensor for Liquid Sodium Using a Yttria Stabilized Zirconia Electrolyte

被引：9

作者：

Nollet, B. K. ^{[1
]}

Hvasta, M. G. ^{[2
]}

Anderson, M. H. ^{[3
]}

Morgan, D. ^{[3
]}

Schneider, J. A. ^{[1
]}

机构：

[1] Ft Lewis Coll, Phys & Engn, Durango, CO 81301 USA

[2] Princeton Univ, Mech & Aerosp Engn, Princeton, NJ 08544 USA

[3] Univ Wisconsin, Engn Phys, Madison, WI 53706 USA

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2017年 / 164卷 / 02期

关键词：

TEMPERATURE;

D O I：

10.1149/2.0021702jes

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

An accurate means of measuring oxygen concentration in sodium is crucial to characterizing the corrosion of sodium-cooled fast reactor (SFR) materials. Significant improvements with regards to lifetime/sensitivity/temperature threshold/etc. can be made to current Galvanic-cell oxygen sensing technology, so extensive research has been conducted at the University of Wisconsin-Madison to address these issues. Electrochemical oxygen sensors using yttria-stabilized zirconia (YSZ) electrolytes were designed and tested in liquid sodium up to 400[degrees C]. These sensors produced an oxygen-dependent signal, and this signal followed the expected functional form, but the lifetime and reproducibility of the sensors were inadequate for commercial use. Sensor performance was analyzed and temperature effects on ionic conductivity, non-bulk thermodynamics, and YSZ-based issues were quantified to study deviations from theory in both slope and signal offset. (c) 2016 The Electrochemical Society.

引用

页码：B10 / B22

页数：13

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