Screening of Ion–Graphene Electrode Interactions by Ionic Liquids: The Effects of Liquid Structure
作者： V. Ivaništšev , M. V. Fedorov , R. M. Lynden-Bell
DOI: 10.1021/JP4120783
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摘要: We have investigated the screening of solute ion–electrode interactions in two ionic liquids (1-butyl 3-methylimidazolium tetrafluoroborate [BMIm][BF4] and 1,3-dimethylimidazolium chloride [MMIm]Cl) by constructing free energy profiles for dissolved charged probes as a function distance from surface (graphene). The three types mutual (surface with opposite charges, uncharged surface, same charges) differ each other, but are remarkably similar liquids. They all show oscillations rather than monotonic behavior predicted Debye-type models. In both liquids, there high barriers impeding motion to oppositely surface. examined local liquid structure around found that minima correspond positions which solvation layers induced charge shells around...
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