Surface Structures of Binary Mixture of Ionic Liquids.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F17%3A00470150" target="_blank" >RIV/67985858:_____/17:00470150 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/44555601:13440/17:43888427

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.molliq.2017.01.073" target="_blank" >http://dx.doi.org/10.1016/j.molliq.2017.01.073</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.molliq.2017.01.073" target="_blank" >10.1016/j.molliq.2017.01.073</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Surface Structures of Binary Mixture of Ionic Liquids.

Popis výsledku v původním jazyce

Surfaces of 11 equimolar mixtures of ionic liquids (ILs) consisting of 1-alkyl3methylimidazoliumcations (from [C2C1Im] to [C12C1Im])with anions (Cl, [BF4], [TfO], [PF6], [Tf2N])were observed using high-resolution Rutherford backscattering spectroscopy (HRBS). The elemental depth profiles of these IL mixtureswere derived fromthe observed HRBS spectra through spectrum modeling. By comparing the observed depth profiles with those of pure ILs, the surface mole fractions of constituent ILs were estimated. We found a general tendency that larger IL is enriched at the surface. The observed surface enrichment can be reasonablywell reproduced by a simple thermodynamic calculation based on the Sprow-Prausnitz equation. A slight deviation from the calculated resultwas ascribed to the nonideal behavior of the IL mixtures, which was neglected in the calculation.

Název v anglickém jazyce

Surface Structures of Binary Mixture of Ionic Liquids.

Popis výsledku anglicky

Surfaces of 11 equimolar mixtures of ionic liquids (ILs) consisting of 1-alkyl3methylimidazoliumcations (from [C2C1Im] to [C12C1Im])with anions (Cl, [BF4], [TfO], [PF6], [Tf2N])were observed using high-resolution Rutherford backscattering spectroscopy (HRBS). The elemental depth profiles of these IL mixtureswere derived fromthe observed HRBS spectra through spectrum modeling. By comparing the observed depth profiles with those of pure ILs, the surface mole fractions of constituent ILs were estimated. We found a general tendency that larger IL is enriched at the surface. The observed surface enrichment can be reasonablywell reproduced by a simple thermodynamic calculation based on the Sprow-Prausnitz equation. A slight deviation from the calculated resultwas ascribed to the nonideal behavior of the IL mixtures, which was neglected in the calculation.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

<a href="/cs/project/GA16-12291S" target="_blank" >GA16-12291S: Hierarchický přístup ke studiu rovnováhy mezi pevnou a kapalnou fází v komplexních systémech: teorie, simulace a experiment</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Molecular Liquids

ISSN

0167-7322

e-ISSN

—

Svazek periodika

230

Číslo periodika v rámci svazku

MARCH

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

542-549

Kód UT WoS článku

000397690900067

EID výsledku v databázi Scopus

2-s2.0-85010661840