At the ionic liquidmetal interface: Structure formation and temperature dependent behavior of an ionic liquid adlayer on Au(111)

Journal article


Publication Details

Author(s): Uhl B, Cremer T, Roos M, Maier F, Steinrück HP, Behm R
Journal: Physical Chemistry Chemical Physics
Publisher: Royal Society of Chemistry
Publication year: 2013
Volume: 15
Journal issue: 40
Pages range: 17295-17302
ISSN: 1463-9076
eISSN: 1463-9084


Abstract


The growth, structure formation and thermal disordering of (sub-)monolayer films of 1-butyl-1-methylpyrrolidinium-bis(trifluoromethylsulfonyl)imide [BMP][TFSA] grown under ultrahigh vacuum (UHV) conditions on Au(111) have been investigated using scanning tunneling microscopy (STM) and angle resolved X-ray photoelectron spectroscopy (ARXPS) under UHV conditions at temperatures between 100 and 298 K. At room temperature, two-dimensional film growth occurs up to one monolayer coverage, with both cations and anions in direct contact with the gold substrate, as shown by ARXPS, and STM images reveal a 2D liquid state of the adlayer. At lower temperatures, motion is frozen and a disordered 2D glass state as well as a 2D crystalline phase with long-range order are formed. The structure of the 2D crystalline phase is influenced by the underlying Au(111) reconstruction pattern. Annealing experiments reveal that the 2D crystalline phase is thermally more stable against melting than the 2D glass state, and that the stability is strongly affected by the adsorbate coverage. © 2013 the Owner Societies.



FAU Authors / FAU Editors

Cremer, Till Dr.
Lehrstuhl für Physikalische Chemie II
Maier, Florian Dr.
Lehrstuhl für Physikalische Chemie II
Steinrück, Hans-Peter Prof. Dr.
Lehrstuhl für Physikalische Chemie II


External institutions with authors

Universität Ulm


How to cite

APA:
Uhl, B., Cremer, T., Roos, M., Maier, F., Steinrück, H.-P., & Behm, R. (2013). At the ionic liquidmetal interface: Structure formation and temperature dependent behavior of an ionic liquid adlayer on Au(111). Physical Chemistry Chemical Physics, 15(40), 17295-17302. https://dx.doi.org/10.1039/c3cp52184b

MLA:
Uhl, Benedikt, et al. "At the ionic liquidmetal interface: Structure formation and temperature dependent behavior of an ionic liquid adlayer on Au(111)." Physical Chemistry Chemical Physics 15.40 (2013): 17295-17302.

BibTeX: 

Last updated on 2019-08-04 at 21:50