Density and surface tension of ionic liquids

Beitrag in einer Fachzeitschrift
(Originalarbeit)


Details zur Publikation

Autor(en): Kolbeck C, Lehmann J, Lovelock K, Cremer T, Paape N, Wasserscheid P, Fröba AP, Maier F, Steinrück HP
Zeitschrift: Journal of Physical Chemistry B
Verlag: American Chemical Society
Jahr der Veröffentlichung: 2010
Band: 114
Heftnummer: 51
Seitenbereich: 17025-17036
ISSN: 1520-6106
eISSN: 1520-5207
Sprache: Englisch


Abstract


We measured the density and surface tension of 9 bis[(trifluoromethyl) sulfonyl]imide ([Tf N] )-based and 12 1-methyl-3- octylimidazolium ([C C Im] )-based ionic liquids (ILs) with the vibrating tube and the pendant drop method, respectively. This comprehensive set of ILs was chosen to probe the influence of the cations and anions on density and surface tension. When the alkyl chain length in the [C C Im][Tf N] series (n) 1, 2, 4, 6, 8, 10, 12) is increased, a decrease in density is observed. The surface tension initially also decreases but reaches a plateau for alkyl chain lengths greater than n) 8. Functionalizing the alkyl chains with ethylene glycol groups results in a higher density as well as a higher surface tension. For the dependence of density and surface tension on the chemical nature of the anion, relations are only found for subgroups of the studied ILs. Density and surface tension values are discussed with respect to intermolecular interactions and surface composition as determined by angle-resolved X-ray photoelectron spectroscopy (ARXPS). The absence of nonvolatile surface-active contaminants was proven by ARXPS. © 2010 American Chemical Society.



FAU-Autoren / FAU-Herausgeber

Cremer, Till Dr.
Lehrstuhl für Physikalische Chemie II
Fröba, Andreas Paul Prof. Dr.-Ing.
Lehrstuhl für Advanced Optical Technologies - Thermophysical Properties
Kolbeck, Claudia Dr.
Sonderforschungsbereich 953/2 Synthetische Kohlenstoffallotrope
Maier, Florian Dr.
Lehrstuhl für Physikalische Chemie II
Steinrück, Hans-Peter Prof. Dr.
Lehrstuhl für Physikalische Chemie II
Wasserscheid, Peter Prof. Dr.
Lehrstuhl für Chemische Reaktionstechnik


Zusätzliche Organisationseinheit(en)
Exzellenz-Cluster Engineering of Advanced Materials


Zitierweisen

APA:
Kolbeck, C., Lehmann, J., Lovelock, K., Cremer, T., Paape, N., Wasserscheid, P.,... Steinrück, H.-P. (2010). Density and surface tension of ionic liquids. Journal of Physical Chemistry B, 114(51), 17025-17036. https://dx.doi.org/10.1021/jp1068413

MLA:
Kolbeck, Claudia, et al. "Density and surface tension of ionic liquids." Journal of Physical Chemistry B 114.51 (2010): 17025-17036.

BibTeX: 

Zuletzt aktualisiert 2019-13-04 um 21:50