Katarina Cvejin
Planar Impedancemetric NO Sensor with Thick Film Perovskite Electrodes Based on Samarium Cobaltite
Cvejin, Katarina; Manjakkal, Libu; Kulawik, Jan; Zaraska, Krzysztof; Szwagierczak, Dorota
Authors
Dr Libu Manjakkal L.Manjakkal@napier.ac.uk
Lecturer
Jan Kulawik
Krzysztof Zaraska
Dorota Szwagierczak
Abstract
Impedancemetric NO sensors were fabricated, comprising yttria stabilized zirconia disc with thick film Sm0.9Sr0.1CoO3−δ electrodes of different design. Impedance measurements were performed at 600–800 °C for frequencies 0.01 Hz–100 kHz, in gas mixtures with 0–400 ppm of NO. The smaller arc on Nyquist plots can be associated with solid electrolyte-electrode interfacial phenomena, while the bigger one to the perovskite electrode reactions. As NO concentration increases, the bigger arc decreases and its maximum shifts toward higher frequencies. Both the sensitivity and the applicable NO concentration range were found to be dependent on the sensor design, temperature and chosen frequency.
Citation
Cvejin, K., Manjakkal, L., Kulawik, J., Zaraska, K., & Szwagierczak, D. (2015). Planar Impedancemetric NO Sensor with Thick Film Perovskite Electrodes Based on Samarium Cobaltite. Electroanalysis, 27(3), 760-769. https://doi.org/10.1002/elan.201400602
Journal Article Type | Article |
---|---|
Acceptance Date | Dec 15, 2014 |
Online Publication Date | Feb 12, 2015 |
Publication Date | 2015-03 |
Deposit Date | Jul 20, 2022 |
Journal | Electroanalysis |
Print ISSN | 1040-0397 |
Publisher | Wiley |
Peer Reviewed | Peer Reviewed |
Volume | 27 |
Issue | 3 |
Pages | 760-769 |
DOI | https://doi.org/10.1002/elan.201400602 |
Keywords | Electrochemistry; Analytical Chemistry |
Public URL | http://researchrepository.napier.ac.uk/Output/2891042 |
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