Regensburg 2019 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 32: Charged Soft Matter, Polyelectrolytes and Ionic Liquids I

CPP 32.10: Vortrag

Mittwoch, 3. April 2019, 12:00–12:15, H13

Room-temperature ionic liquids at metallic interfaces–A study of polarisation effects — •Samuel Ntim and Marialore Sulpizi — Johannes Gutenberg Universität, Mainz, Germany

Room-temperature ionic liquids (RTILs) are salts, liquid at room temperature because of their low melting points. They have peculiar properties in confined geometries and studies of such properties have become essential for many fields like energy storage, catalysis and tribology.

Due to the high electrostatic coupling between ions in the absence of a solvent, some of these peculiarities, particularly in the case of metallic confinement of RTILs, have been thought to be effects of polarisation from the confining metal.

Using classical atomistic molecular dynamics simulations, we have examined the role of polarisation effects at the interface of [BMIM][BF4] confined in gold plates. Our results provide evidence of negligible effect of polarisation on the structural, thermodynamic and dynamical properties of the RTIL.