Please use this identifier to cite or link to this item: doi:10.22028/D291-29278
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Title: Dynamic shear force microscopy of confined liquids at a gold electrode
Author(s): Krämer, Günther
Hausen, Florian
Bennewitz, Roland
Language: English
Title: Faraday Discussions
Volume: 199
Startpage: 299
Endpage: 309
Publisher/Platform: RSC
Year of Publication: 2017
Publikation type: Journal Article
Abstract: The confinement of liquids in nanometer-scale gaps can lead to changes in their viscous shear properties. For liquids of polar molecules, the charge state of the confining surfaces has a significant influence on the structure in the confined liquid. Here we report on the implementation of dynamic shear force microscopy in an electrochemical cell. Lateral oscillations of the tip of an atomic force microscope were magnetically activated at a frequency of about 50 kHz. The damping of the lateral tip oscillation was recorded as a function of the tip–sample distance and of the electrode potential at the surface of a Au(100) single crystal electrode. The influence of surface charges on the shear response of the nano-confined liquids was demonstrated for the ionic liquid [EMIM][NTf2] and for aqueous Na2SO4 solution.
DOI of the first publication: 10.1039/C6FD00237D
Link to this record: hdl:20.500.11880/28085
ISSN: 1359-6640
Date of registration: 14-Oct-2019
Faculty: NT - Naturwissenschaftlich- Technische Fakultät
Department: NT - Physik
Professorship: NT - Keiner Professur zugeordnet
Collections:Die Universitätsbibliographie

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