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Shear Response of Nanoconfined Water on Muscovite Mica: Role of Cations

Research output: Contribution to journalArticle

Original languageEnglish
Pages (from-to)10351 - 10355
Number of pages5
JournalLangmuir
Volume27
Issue number17
DOIs
DatePublished - Jan 2011

Abstract

By monitoring the thermal noise of a vertically oriented micromechanical force sensor, we detect the viscoelastic response to shear for water in a subnanometer confinement. Measurements in pure water as well as under acidic and high-ionic-strength conditions relate this response to the effect of surface-adsorbed cations, which, because of their hydration, act as pinning centers restricting the mobility of the confined water molecules.

Additional information

Publisher: American Chemical Society

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