Pore-size dependent effects on structure and vibrations of 1-ethyl-3-methylimidazolium tetrafluoroborate in nanoporous carbon

- Combined structural and vibrational study of EMI-BF4 adsorbed in porous carbon.
- Porous carbons of a wide range of pore sizes from 0.5 nm to over 2.5 nm are studied.
- Denser ion packing upon adsorption with average ion-distance decrease of 0.05 nm.
- Constrainment of the perpendicular vibrational modes by pore walls in narrow pores.