Surface Ordering in Binary Mixtures of Protic Ionic Liquids

Christiaan Ridings, Gregory Warr, Gunther Andersson

    Research output: Contribution to journalArticlepeer-review

    7 Citations (Scopus)


    The surface composition of binary mixtures of the protic ionic liquids ethylammonium nitrate and propylammonium nitrate has been investigated using surface tension measurements and the perfectly surface sensitive method metastable induced electron spectroscopy. Given that the latter technique is sensitive only to the outermost layer, it allows for the determination of the surface fraction occupied by a given species. The piecewise linear relationship between surface fraction and surface tension found in this study can be described by a phase separation within the surface layer.

    Original languageEnglish
    Pages (from-to)4264-4266
    Number of pages3
    JournalThe Journal of Physical Chemistry Letters
    Issue number17
    Publication statusPublished - 7 Sep 2017


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