TY  - CONF
AU  - Frielinghaus, Henrich
AU  - Noferini, Daria
AU  - Holderer, Olaf
TI  - Ionic liquids in mild confinement
PB  - San Sebastian
M1  - FZJ-2021-02851
PY  - 2021
AB  - The structure and dynamics of the ionic liquid 1-ethyl-3-methylimidazolium acetate (EMIMAc) in porous glass with pores of the size 40 and 100 Å is determined in comparison to the bulk liquid. We employed x-ray diffraction to measure the domain structure, and neutron backscattering for the dynamics. In confinement, the liquid displays onion-like domain structuring while in bulk the liquid is largely forming a bicontinuous structure similar to microemulsions. This also has an effect on the dynamics of the liquid at high temperatures (373K): The ions in the bulk can diffuse along the domain boundaries while they need to cross the domains in the ordered state in confinement. At low temperatures, the attractive forces of all ions are such strong – we have a highly viscous fluid – such that the diffusion in any direction is similarly slow, and the exact domain structure plays a minor role.
T2  - QENS/WINS 2021
CY  - 17 May 2021 - 21 May 2021, San Sebastian (Spain)
Y2  - 17 May 2021 - 21 May 2021
M2  - San Sebastian, Spain
LB  - PUB:(DE-HGF)6
UR  - https://juser.fz-juelich.de/record/893812
ER  -