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Ion depletion near a solution surface: is image-charge repulsion sufficient?
Phys Rev Lett ; 111(26): 266102, 2013 Dec 27.
Artigo em Inglês | MEDLINE | ID: mdl-24483806
ABSTRACT
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.

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Coleções: Bases de dados internacionais Base de dados: MEDLINE Aspecto clínico: Predição / Prognóstico Idioma: Inglês Revista: Phys Rev Lett Ano de publicação: 2013 Tipo de documento: Artigo País de afiliação: Suíça