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Hürland, Armin ; Plog, Carsten ; Moos, Ralf ; Simon, Ulrich:
Nitrosyl Cation Conducting Ceramic Membrane as Amperometric Sensor Device.
2003
Veranstaltung: 102. Bunsentagung
, 29.-31. Mai 2003
, Kiel, Deutschland.
(Veranstaltungsbeitrag: Kongress/Konferenz/Symposium/Tagung
,
Vortrag
)
Abstract
In this contribution a gas-diffusion-controlled solid-electrolyte NO sensor is presented. Apotentiometric NO sensor principle based on a nitrosyl cation conducting ceramic membrane that generates an electromotive force between two different NO partial pressures has been recently reported.
In a gas-diffusion-controlled sensor device the amount of measuring gas that reaches the three phase boundary has to be limited by a diffusion barrier or a diffusion hole. The measuring gas diffuses towards the anode where NO is oxidised to a nitrosyl cation. These ions migrate through the membrane and are reduced at the cathode to gaseous NO. If the voltage at the electrodes is high enough, the ionic current through the membrane is only limited by the diffusion of the measuring gas through the diffusion barrier. The measured limiting current of our sensor shows a linear dependency to the NO concentration providing an indirect proof for the ion conduction of nitrosyl cations. A further direct evidence is achieved by joining the NO pumping device to a potentiometric NO sensor and measuring the NO concentration in dependency of the pumping current.
Weitere Angaben
| Publikationsform: | Veranstaltungsbeitrag (Vortrag) |
|---|---|
| Begutachteter Beitrag: | Ja |
| Institutionen der Universität: | Fakultäten > Fakultät für Ingenieurwissenschaften Fakultäten > Fakultät für Ingenieurwissenschaften > Lehrstuhl Funktionsmaterialien > Lehrstuhl Funktionsmaterialien - Univ.-Prof. Dr.-Ing. Ralf Moos Fakultäten Fakultäten > Fakultät für Ingenieurwissenschaften > Lehrstuhl Funktionsmaterialien Profilfelder > Advanced Fields > Neue Materialien Forschungseinrichtungen > Forschungszentren > Bayreuther Materialzentrum - BayMAT Profilfelder Profilfelder > Advanced Fields Forschungseinrichtungen Forschungseinrichtungen > Forschungszentren |
| Titel an der UBT entstanden: | Ja |
| Themengebiete aus DDC: | 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften |
| Eingestellt am: | 29 Jun 2015 12:10 |
| Letzte Änderung: | 05 Apr 2016 06:43 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/15440 |