Highly sensitive coulometric titration of oxygen for the characterization of solid materials at elevated temperatures
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Published:2018-12-06
Issue:2
Volume:7
Page:621-625
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ISSN:2194-878X
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Container-title:Journal of Sensors and Sensor Systems
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language:en
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Short-container-title:J. Sens. Sens. Syst.
Author:
Herms Alexander,Yao Jingying,Zosel Jens,Vashook Vladimir,Oelßner Wolfram,Mertig Michael
Abstract
Abstract. A new setup for characterization of solid material oxygen exchange and
conductivity in a broad oxygen partial pressure range and at elevated
temperatures is presented. The development target of this setup is directed
towards the detection of ultra-low amounts of exchanged oxygen. For this,
electrochemical cells made of yttria-stabilized zirconia (YSZ) were optimized
and applied in a flow-through arrangement. The design and process measures
enable a lower limit of detection below 100 pmol of exchanged oxygen.
Furthermore, the system characteristics concerning oxygen dispersion,
titration efficiency and electrode kinetics are described.
Publisher
Copernicus GmbH
Subject
Electrical and Electronic Engineering,Instrumentation
Reference9 articles.
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