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- Julia Haddad
- Physics Department, Bar-Ilan University, Ramat Gan 5290002, Israel;
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- Diego Pontoni
- European Synchrotron Radiation Facility, The European Synchrotron and Partnership for Soft Condensed Matter (PSCM), 38000 Grenoble, France;
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- Bridget M. Murphy
- Institute for Experimental and Applied Physics, Kiel University, 24118 Kiel, Germany;
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- Sven Festersen
- Institute for Experimental and Applied Physics, Kiel University, 24118 Kiel, Germany;
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- Benjamin Runge
- Institute for Experimental and Applied Physics, Kiel University, 24118 Kiel, Germany;
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- Olaf M. Magnussen
- Institute for Experimental and Applied Physics, Kiel University, 24118 Kiel, Germany;
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- Hans-Georg Steinrück
- Stanford Synchrotron Radiation Laboratory (SSRL) Materials Science Division, Stanford Linear Accelerator Center (SLAC) National Accelerator Laboratory, Menlo Park, CA 94025;
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- Harald Reichert
- European Synchrotron Radiation Facility, The European Synchrotron, 38000 Grenoble, France;
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- Benjamin M. Ocko
- National Synchrotron Light Source II (NSLS-II), Brookhaven National Laboratory, Upton, NY 11973
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- Moshe Deutsch
- Physics Department, Bar-Ilan University, Ramat Gan 5290002, Israel;
説明
<jats:title>Significance</jats:title> <jats:p>This high-resolution X-ray study resolves the liquid–air interface structure for a long homologous series of room temperature ionic liquids (RTILs). RTILs are intensely studied for many potential “green” applications and for their intriguingly complex and rare combination of intermolecular interactions. Varying their cation’s alkyl chain length provides, therefore, an opportunity to tune the main interaction from mostly long-range electrostatic to mostly short-range van der Waals. This variation is found here to drive the interface structure from simple, to layered, to liquid crystalline. The quantitative results obtained constitute an accurate yardstick for testing simulations and theory, impact the bulk–surface structure relations in general, and provide currently scarce data for many RTIL applications, like batteries and supercapacitors.</jats:p>
収録刊行物
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- Proceedings of the National Academy of Sciences
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Proceedings of the National Academy of Sciences 115 (6), E1100-, 2018-01-22
Proceedings of the National Academy of Sciences