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Nitrosyl Cation Conducting Ceramic Membrane as Amperometric Sensor Device

Title data

Hürland, Armin ; Plog, Carsten ; Moos, Ralf ; Simon, Ulrich:
Nitrosyl Cation Conducting Ceramic Membrane as Amperometric Sensor Device.
2003
Event: 102. Bunsentagung , 29.-31. Mai 2003 , Kiel, Deutschland.
(Conference item: Conference , Speech )

Abstract in another language

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.

Further data

Item Type: Conference item (Speech)
Refereed: Yes
Institutions of the University: Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Functional Materials > Chair Functional Materials - Univ.-Prof. Dr.-Ing. Ralf Moos
Faculties
Faculties > Faculty of Engineering Science > Chair Functional Materials
Profile Fields > Advanced Fields > Advanced Materials
Research Institutions > Research Centres > Bayreuth Center for Material Science and Engineering - BayMAT
Profile Fields
Profile Fields > Advanced Fields
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 29 Jun 2015 12:10
Last Modified: 05 Apr 2016 06:43
URI: https://eref.uni-bayreuth.de/id/eprint/15440