Ion specificity in the measured concentration depth profile of ions at the Vapor-Glycerol interface

Autor:	Anand Kumar, Vincent S.J. Craig, Alister J. Page, Grant B. Webber, Erica J. Wanless, Gunther Andersson
Rok vydání:	2022
Předmět:	Anions Glycerol Ions Biomaterials Colloid and Surface Chemistry Cations Solvents Gases Surfaces Coatings and Films Electronic Optical and Magnetic Materials
Zdroj:	Journal of Colloid and Interface Science. 626:687-699
ISSN:	0021-9797
Popis:	Specific ion effects are manifest universally across many systems and solvents. Whilst broad understanding of these effects is emerging particularly for bulk effects, the perturbation introduced by the interfaces are generally not understood. We hypothesise that through a careful investigation of the distribution of ions at the glycerol-vapor interface we can better understand specific ion effects in this system and at interfaces.Neutral impact collision ion scattering spectroscopy (NICISS) is used to obtain and compare individual ion concentration depth profiles (CDP) for a range of monovalent inorganic anions and cations at 12 glycerol electrolyte solutions surfaces.The distribution of ions at the vapor - glycerol interface is non-monotonic. Broadly, anions are concentrated at the outermost region of the interface and cations are depleted from the interface. The distribution of Cl
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d8ce09f1102b45add4a321c5ad3f9947 https://doi.org/10.1016/j.jcis.2022.06.104 Zobrazit plný text záznamu Full Text from ScienceDirect