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Dickert, Franz L. ; Zenkel, Matthias E. ; Bulst, Wolf-Eckhart ; Fischerauer, Gerhard ; Knauer, Ulrich:
Fullerene/liquid crystal mixtures as QMB- and SAW-coatings : detection of diesel- and solvent-vapours.
In: Fresenius' Journal of Analytical Chemistry.
Bd. 357
(1997)
Heft 1
.
- S. 27-31.
ISSN 1432-1130
DOI: https://doi.org/10.1007/s002160050105
Abstract
The detection of diesel fuel and different solvent vapours in air is described. Due to the very low vapour pressure of diesel fuel, highly mass sensitive quartz microbalance (QMB) and surface acoustic wave (SAW) sensors are used. Micro porous coatings are presented consisting of liquid crystals and buckminster fullerenes. Thereby the globular compound disturbs the structure of the rod-like component and cavities and channels are created. With these mixtures it is possible to attain a resolution of 0.5% of the vapour pressure of diesel in air with the QMB; an even fivefold increase of sensitivity can be obtained with highly sensitive SAW devices operating at 433 MHz. In the latter case alkylsilane monolayers are used to promote adhesion, which themselves show a similar sensitivity as the QMB, but with an instantaneous response.
Weitere Angaben
| Publikationsform: | Artikel in einer Zeitschrift |
|---|---|
| Begutachteter Beitrag: | Ja |
| Institutionen der Universität: | Fakultäten > Fakultät für Ingenieurwissenschaften > Lehrstuhl Mess- und Regeltechnik > Lehrstuhl Mess- und Regeltechnik - Univ.-Prof. Dr.-Ing. Gerhard Fischerauer Fakultäten Fakultäten > Fakultät für Ingenieurwissenschaften Fakultäten > Fakultät für Ingenieurwissenschaften > Lehrstuhl Mess- und Regeltechnik |
| Titel an der UBT entstanden: | Ja |
| Themengebiete aus DDC: | 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften |
| Eingestellt am: | 25 Feb 2016 16:11 |
| Letzte Änderung: | 14 Jun 2023 09:20 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/31134 |