Cation adsorption-induced enhancement and disruption of oscillatory hydration forces at mica-electrolyte interfaces

Research output: Contribution to conferencePoster

Abstract

High resolution AFM spectroscopy was used to investigate the oscillatory hydration forces at mica-electrolyte interfaces for the chloride salts of alkali cations for concentrations up to 4M. Pronounces force oscillations reflecting the layering in purified water are modified in an ion specific manner beyond an ion-dependent threshold concentration. While only a slight enhancement of the oscillatory forces is seen for the so-called kosmotropic (‘structure forming’) ions Na+ and K+, the force oscillations completely disappear for the chaotropic (‘i.e. ‘structure-breaking’) ions Cs+ and Rb+ suggesting a disruption of the hydration layers
Original languageEnglish
Publication statusPublished - 18 Sep 2018
Event21st International Conference on Non-Contact Atomic Force Microscopy 2018 - Porvoo Art Factory, Porvoo, Finland
Duration: 17 Sep 201821 Sep 2018
Conference number: 21
https://ncafm2018.aalto.fi/

Conference

Conference21st International Conference on Non-Contact Atomic Force Microscopy 2018
Abbreviated titleNC-AFM 2018
CountryFinland
CityPorvoo
Period17/09/1821/09/18
Internet address

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    van Lin, S. R., Sîretanu, I., & Mugele, F. G. (2018). Cation adsorption-induced enhancement and disruption of oscillatory hydration forces at mica-electrolyte interfaces. Poster session presented at 21st International Conference on Non-Contact Atomic Force Microscopy 2018, Porvoo, Finland.