Potentiometric oxygen sensor with solid state reference electrode

• Autorzy: Dunst K. , Jasinski G. , Jasinski P.

Identyfikatory

DOI

10.2478/mms-2014-0018

• Języki publikacji: EN

Abstrakty

EN

The concentration or the partial pressure of oxygen in an environment can be determined using different measuring principles. For high temperature measurements of oxygen, ceramic-based sensors are the most practical. They are simple in construction, exploration and maintenance. A typical oxygen potentiometric sensor consists of an oxygen ion conducting solid electrolyte and two electrodes deposited on the two sides of the electrolyte. In this paper different structures of potentiometric oxygen sensors with a solid state reference electrode were fabricated and investigated. The fabricated structures consisted of oxygen ion conducting solid electrolyte from yttria stabilized zirconia, a sensing platinum electrode and nickel-nickel oxide reference electrode. The mixture of nickel-nickel oxide was selected as the reference electrode because it provides reliable electrochemical potential in contact with oxygen conducting electrolyte. To avoid oxidation of nickel the reference electrode is sealed from ambient and the mixture of nickel-nickel oxide was formed electrochemically from nickel oxide after sealing. The effectiveness of the sealing quality and the effectiveness of nickel-nickel oxide mixture formation was investigated by impedance spectroscopy.

Słowa kluczowe

EN

potentiometric; oxygen sensor; Nernstian behavior

• Wydawca: Komitet Metrologii i Aparatury Naukowej PAN
• Czasopismo: Metrology and Measurement Systems
• Rocznik: 2014
• Tom: Vol. 21, nr 2
• Strony: 205--216
• Opis fizyczny: Bibliogr. 19 poz., rys., wykr.

Twórcy

autor

Dunst K.

• Gdansk University of Technology, Faculty of Electronics, Telecommunications and Informatics, ul. Narutowicza 11/12, 80-233 Gdansk, Poland

autor

Jasinski G.

• Gdansk University of Technology, Faculty of Electronics, Telecommunications and Informatics, ul. Narutowicza 11/12, 80-233 Gdansk, Poland

autor

Jasinski P.

• Gdansk University of Technology, Faculty of Electronics, Telecommunications and Informatics, ul. Narutowicza 11/12, 80-233 Gdansk, Poland

Bibliografia

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Uwagi

EN

The work was supported by the National Centre for Research and Development, LIDER No. 22/103/L-2/10/NCBiR/2011 „Multisensor system for measuring air pollutants”.