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Selective cation depletion from an ionic liquid droplet under an electric field

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Title
Selective cation depletion from an ionic liquid droplet under an electric field
Author(s)
Myung Mo Ahn; Yu Dong Yang; Do Jin Im; Jung Min Oh; In Seok Kang
Publication Date
2017-10
Journal
JOURNAL OF MOLECULAR LIQUIDS, v.244, no., pp.117 - 123
Publisher
ELSEVIER SCIENCE BV
Abstract
We conducted MD simulation to investigate the general electrohydrodynamic behavior of droplets of imidazolium-based ionic liquids composed of 1-ethyl-3-methylimidazolium (EMIM) anion and either bis(trifluoromethylsulfonyl)imide (NTf2) or ethylsulfate (ES) cation. The cation depletion phenomena observed in the previous work [J. Phys. Chem. Lett. 5 3021 (2014)] is analyzed in detail to clarify its mechanism. Shape deformation due to electric stress and the ion distributions inside the droplet are calculated with 200 ion pairs and the intermolecular interactions between ions are directly analyzed. Together with an analytical interpretation of the conducting droplet in an electric field, we show that the MD simulation successfully explains the mechanism of selective ion depletion of an ionic liquid droplet in an electric field, and the retreating motion of the droplet observed by experiments. © 2017 Elsevier B.V
URI
https://pr.ibs.re.kr/handle/8788114/4229
ISSN
0167-7322
Appears in Collections:
Center for Soft and Living Matter(첨단연성물질 연구단) > Journal Papers (저널논문)
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