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Radio frequency- and impedance-based sensing of ionic liquids supported on porous carriers and their limitations

Title data

Anke, Marie-Luise ; Hämmerle, Martin ; Jess, Andreas ; Moos, Ralf:
Radio frequency- and impedance-based sensing of ionic liquids supported on porous carriers and their limitations.
In: Sensors and Actuators B: Chemical. Vol. 273 (2018) . - pp. 1564-1571.
ISSN 0925-4005
DOI: https://doi.org/10.1016/j.snb.2018.07.036

Official URL: Volltext

Project information

Project title:
Project's official titleProject's id
No informationMo 1060/27-1
No informationJe 257/21-1

Project financing: Deutsche Forschungsgemeinschaft

Abstract in another language

The analysis of the pore filling degree of supported ionic liquids (ILs) is essential for industrial applications. In this study, two methods to detect the loading of IL supported on solid carriers are presented, a radio frequency-based one and one using impedance spectroscopy. With the radio frequency-based method, the pore filling degree can be determined contactless and in operando. Some unexpected deviations at non-relevant high pore filling degrees occur. They can be explained by the combination of the results from the radio frequency-based method (at 1.2 GHz) and the impedance spectroscopy (at 1 Hz to 2 MHz). A transition from low polarization losses to high conduction losses occurs with increasing ionic liquid loading of the porous carrier.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: Supported ionic liquids
Institutions of the University: Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Chemical Engineering > Chair Chemical Engineering - Univ.-Prof. Dr.-Ing. Andreas Jess
Faculties > Faculty of Engineering Science > Chair Functional Materials > Chair Functional Materials - Univ.-Prof. Dr.-Ing. Ralf Moos
Profile Fields > Advanced Fields > Advanced Materials
Research Institutions > Research Centres > Bayreuth Center for Material Science and Engineering - BayMAT
Research Institutions > Research Units > ZET - Zentrum für Energietechnik
Faculties
Faculties > Faculty of Engineering Science > Chair Chemical Engineering
Faculties > Faculty of Engineering Science > Chair Functional Materials
Profile Fields
Profile Fields > Advanced Fields
Research Institutions
Research Institutions > Research Centres
Research Institutions > Research Units
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 540 Chemistry
600 Technology, medicine, applied sciences
600 Technology, medicine, applied sciences > 620 Engineering
600 Technology, medicine, applied sciences > 660 Chemical engineering
Date Deposited: 23 Jul 2018 09:12
Last Modified: 19 Sep 2018 05:32
URI: https://eref.uni-bayreuth.de/id/eprint/45161