Experimentally probing ionic solutions in single-digit nanoconfinement

[Display omitted] Understanding ionic solutions in single-digit nanoconfinement is crucial to explain the behavioral transition of confined solutions. This is particularly the case when the system length scale crosses the classical key length scales describing energetics and equilibrium of ionic sol...

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Bibliographic Details
Published in:Journal of colloid and interface science 2022-05, Vol.614, p.396-404
Main Authors: Rébiscoul, Diane, Baum, Markus, Wang, Kunyu, Tardif, Samuel, Larrey, Vincent, Siboulet, Bertrand, Dufreche, Jean-Francois, Rieutord, Francois
Format: Article
Language:English
Subjects:
Adsorption
Cations
Chemical Sciences
Density profile
In situ hard X-ray reflectivity
Interface
Ion surface interactions
Ionic solution
or physical chemistry
Silicon Dioxide
Single-digit nanoconfinement
Theoretical and
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Summary:[Display omitted] Understanding ionic solutions in single-digit nanoconfinement is crucial to explain the behavioral transition of confined solutions. This is particularly the case when the system length scale crosses the classical key length scales describing energetics and equilibrium of ionic solutions next to surfaces. Experimentally probing nanoconfinement would open large perspectives to test modelling or theory predictions. Here, using a new test vehicle that consists in 3 and 5 nm-height silica nanochannels associated with an original characterization technique based on the interface hard X-ray reflectivity analysis, we directly probed the transport of solutions containing cations having increasing kosmotropic properties (XCl2 with X: Ba 
ISSN:0021-9797
1095-7103
DOI:10.1016/j.jcis.2022.01.128