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Surface Wetting in Liquid–Liquid–Solid Triphase Systems: Solid-Phase-Independent Transition at the Liquid–Liquid Interface by Lewis Acid–Base Interactions

Authors

  • Dr. Mingjie Liu,

    1. Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190 (P.R. China)
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  • Dr. Zhongxin Xue,

    1. Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190 (P.R. China)
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  • Prof. Huan Liu,

    1. Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry and Environment, Beihang University, Beijing, 100191 (P.R. China)
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  • Prof. Lei Jiang

    Corresponding author
    1. Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190 (P.R. China)
    2. Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry and Environment, Beihang University, Beijing, 100191 (P.R. China)
    • Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190 (P.R. China)
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  • The authors thank the financial support by the National Research Fund for Fundamental Key Projects (grant numbers 2010CB934700, 2009CB930400, and 2007CB936403) and the National Natural Science Foundation (grant numbers 20974113 and 20601005). The Chinese Academy of Sciences is gratefully acknowledged.

Abstract

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Interfacial phenomena: A solid-phase-independent strategy for tuning the surface wettability is presented. Lewis acid–base interactions at the oil–water interface can greatly decrease the liquid–liquid interfacial tension and induce oleophilic to superoleophobic wetting transition on a nonresponsive microstructured surface (see picture).

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