Molecular Layering of Fluorinated Ionic Liquids at a Charged Sapphire (0001) Surface
Bar-Ilan University · Max Planck Society · +4 more institutions
Abstract
Room-temperature ionic liquids (RTILs) are promising candidates for a broad range of "green" applications, for which their interaction with solid surfaces plays a crucial role. In this high-energy x-ray reflectivity study, the temperature-dependent structures of three ionic liquids with the tris(pentafluoroethyl)trifluorophosphate anion in contact with a charged sapphire substrate were investigated with submolecular resolution. All three RTILs show strong interfacial layering, starting with a cation layer at the substrate and decaying exponentially into the bulk liquid. The observed decay length and layering period point to an interfacial ordering mechanism, akin to the charge inversion effect, which is…
Citation impact
- FWCI
- 13.03
- Percentile
- 100%
- References
- 32
Authors
13- MMMarkus Mezger
Bar-Ilan University, Max Planck Society, University of South Australia, Brookhaven National Laboratory, European Synchrotron Radiation Facility
- HSHeiko Schröder
Bar-Ilan University, Max Planck Society, University of South Australia, Brookhaven National Laboratory, European Synchrotron Radiation Facility, Max Planck Institute for Intelligent Systems
- HRH. ReichertCorresponding
Bar-Ilan University, Max Planck Society, University of South Australia, Brookhaven National Laboratory, European Synchrotron Radiation Facility, Max Planck Institute for Intelligent Systems
- SSSebastian Schramm
Bar-Ilan University, Max Planck Society, University of South Australia, Brookhaven National Laboratory, European Synchrotron Radiation Facility, Max Planck Institute for Intelligent Systems
- JOJohn Okasinski
Bar-Ilan University, Max Planck Society, University of South Australia, Brookhaven National Laboratory, European Synchrotron Radiation Facility, Max Planck Institute for Intelligent Systems
Topics & keywords
- Layering
- Chemical physics
- Ion
- Sapphire
- Ionic liquid
- Substrate (aquarium)
- Ionic bonding
- Materials science
- Affordable and clean energy