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ZSM-5 zeolite as sensitive material in hydrocarbon gas sensors

Title data

Dubbe, Andreas ; Hagen, Gunter ; Moos, Ralf:
ZSM-5 zeolite as sensitive material in hydrocarbon gas sensors.
Event: 18. Deutsche Zeolith-Tagung , 01.-03. März 2006 , Hannover, Deutschland.
(Conference item: Conference , Other Presentation type)

Abstract in another language

Zeolites find application in gas sensors as catalyst or molecular filter material to modify the gas composition in front of the sensitive element, or as gas-sensitive material. For zeolites as gas-sensitive material, mechanical (mass sensitive), optical, and electrical sensing principles are known. The present paper deals with new electrical gas sensor mechanisms based on electrical interface phenomena in zeolites. Other electrical gas sensing principles of zeolites are based on changes of capacitance or of ionic conductivity upon gas sorption for detection of alkanes, alcohols, H2O, or NH3. Different from these mechanisms, which involve the detection of changes of electric properties of the zeolite volume, the mechanisms of the response of junctions between zeolites and electron conducting materials to gas atmospheres is presently less well understood. Only a few similar examples are found in the literature, including a potentiometric H2 sensor using HY and NH4Y zeolites and a CO2 sensor.

Further data

Item Type: Conference item (Other)
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 > 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: 17 Jun 2015 07:53
Last Modified: 06 Apr 2016 06:30