Bennett, Elliot L 
ORCID: 0000-0003-3798-4296, Song, Chaoyun, Huang, Yi ORCID: 0000-0001-7774-1024 and Xiao, Jianliang ORCID: 0000-0003-2010-247X
(2019)
Measured relative complex permittivities for multiple series of ionic liquids
JOURNAL OF MOLECULAR LIQUIDS, 294.
111571-.
ISSN 0167-7322, 1873-3166
Abstract
Presented in this paper are experimentally measured relative complex permittivities as a function of frequency for a representative range of ionic liquids, comprising 64 imidazolium, choline, phosphonium, ammonium, pyrrolidinium, pyridinium and piperidinium cations with a variety of anions. The measurement was conducted using a coaxial probe technique at room temperature from almost DC (0 Hz) to 18 GHz with a high level of accuracy. The real parts of the complex permittivities have been summarized in table format with both the real and imaginary parts presented as individual spectra for each ionic liquid. It is found that an increase in the molecular weight results in a decrease in overall permittivity and this is true over multiple series of ionic liquids. Additives such as water are shown to have a profound effect on the complex permittivity. The measured data is useful for a wide range of applications, such as electronic devices, chemical synthesis and materials.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Complex permittivity, Dielectric constant, Ionic liquids, Molten salts, Relative static permittivity |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 16 Aug 2019 13:41 |
| Last Modified: | 16 Jun 2026 07:15 |
| DOI: | 10.1016/j.molliq.2019.111571 |
| Open Access URL: | https://doi.org/10.1016/j.molliq.2019.111571 |
| Related Websites: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3051929 |
| Disclaimer: | The University of Liverpool is not responsible for content contained on other websites from links within repository metadata. Please contact us if you notice anything that appears incorrect or inappropriate. |
Altmetric
Altmetric