Ion depletion near a solution surface: is image-charge repulsion sufficient?

Autor:	Maurus Hess, Nicholas D. Spencer, Thomas Peter, Antonella Rossi, William A. Lanford, Ulrich K. Krieger
Rok vydání:	2013
Předmět:	Condensed Matter::Soft Condensed Matter Materials science Aqueous solution Metal ions in aqueous solution Analytical chemistry General Physics and Astronomy Polar Electrolyte Method of image charges Spectroscopy Mass spectrometry Ion
Zdroj:	Physical review letters. 111(26)
ISSN:	1079-7114
Popis:	Grazing-incidence Rutherford backscattering and angle-resolved x-ray photoelectron spectrometry are used to determine the ion-concentration profiles near the surface of a solution consisting of a salt (TEABr) in a weakly polar organic liquid (polyethylene glycol) with atomic-layer depth resolution. The predictions of a model, in which ions in solution are repelled from the surface due to a screened Coulomb interaction with their image charge, are in good agreement with measured ion profiles. This contrasts with the behavior of salts in aqueous and highly polar organic solutions.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a9fcb4d47ea2f1f0a41fd5e6ab68fd7 https://pubmed.ncbi.nlm.nih.gov/24483806 Zobrazit plný text záznamu