Taylor cones of ionic liquids as ion sources: The role of electrical conductivity and surface tension

Carlos Larriba-Andaluz, D. Garoz, C. Bueno, I. Romero-Sanz, S. Castro, J. Fernandez De La Mora, Y. Yoshida, G. Saito, R. Hagiwara, K. Matsumoto, J. Wilkes

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Scopus citations

Abstract

A purely ionic regime (PIR) of charge emission from Taylor cones of ionic liquids (ILs) held in a vacuum exists, giving ion beams of high quality. This regime is favored by ionic liquids of high electrical conductivity K and high surface tension γ. The present search for such ILs relies on an improved form of the capillary rise method using sample volumes smaller than 0.1 cm 3. Prior and new observations are used to confirm the important role of both γ and K for PIR operation from conventional capillary electrospray sources.

Original languageEnglish (US)
Title of host publicationIonic Liquids IV Not Just Solvents Anymore
EditorsJohn Brennecke, Robin Rogers, Kenneth Seddon
Pages308-319
Number of pages12
StatePublished - Dec 10 2007

Publication series

NameACS Symposium Series
Volume975
ISSN (Print)0097-6156

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