Study of ionic liquid mixture droplet evolution in an external electric field using molecular dynamics

摘要

Molecular dynamics (MD) simulations are used to study the evolution of droplets formed from the mixture of two ionic liquids, namely, ethylammonium nitrate (EAN) and 1-ethyl-3-methylimidazolium ethyl sulfate (EMIM-EtSO_4) in the presence of an external electric field. It was found that increasing the fraction of EMIM-EtSO_4 in the droplet structure makes it electrostatically weaker. However, the time required for the first cations and anions to reach the sampling zone was found to be longer for droplets with a higher mass fraction of EMIM-EtSO_4 due to more the massive cation and anion size compared to that of EAN.