Regulating structure and flow of ionic liquid confined in nanochannel using water and electric field

XY Liu and XT Zong and S Xue and MG He, JOURNAL OF MOLECULAR LIQUIDS, 351, 118612 (2022).

DOI: 10.1016/j.molliq.2022.118612

Developing regulation method for the structure and flow of ionic liquids (ILs) in the nanochannel is of great importance to their application in nanodevice. For this purpose, the density and charge distribution and the flow behavior of EMIMBF4 blended with water as diluent and imposed electric field in nanochannel are studied using molecular dynamic simulation method in this work. The results reveal that the addition of water can weaken the stratification effect of density and charge distribution while doesn't significantly change the micro- structure of EMIMBF4, while the electric field in different directions results different influence on the stratification effect. Addition of water can make a significant improvement in the flow velocity of EMIMBF4 and change its flow state. Imposing electric field in flow direction can accelerate the flow, but imposing electric field perpendicular to nanochannel handles the flow. (C) 2022 Elsevier B.V. All rights reserved.

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