Detection of Water-in-Oil Droplet Formation within an Interfacial Region Formed by an Aqueous/1,2-Dichlorethane Interface Using Transient Cell Impendance Measurements at a Single High Frequency

Kód výsledku v IS VaVaI

RIV/61388955:_____/19:00503737 - isvavai.cz

Výsledek na webu

http://hdl.handle.net/11104/0295527

DOI - Digital Object Identifier

10.1134/S1023193519020095

Jazyk výsledku

angličtina

Název v původním jazyce

Detection of Water-in-Oil Droplet Formation within an Interfacial Region Formed by an Aqueous/1,2-Dichlorethane Interface Using Transient Cell Impendance Measurements at a Single High Frequency

Popis výsledku v původním jazyce

The detection of water-in-oil (w/o) droplet formation within an interfacial region formed by an interface between an aqueous phase and 1,2-DCE using transient impedance measurements in an unconventional electrochemical cell is herein reported. Droplet formation causes a large peak-like increase in transient real cell impedance. Peaks are likely caused by significant decrease in ion concentration within the interfacial region by formation of w/o droplets containing electrolyte. Droplet formation and an accompanying interfacial stability was observed when antagonistic salts (consisting of a hydrophobic ion of ΔGtr∘,water→1,2−DCE≤ TBA + ) were mixed with conventional aqueous electrolytes in the aqueous phase. The instability manifests as Marangoni convection, causing rapid mass transport in the adjacent fluid on both sides of the liquid/liquid interface.

Název v anglickém jazyce

Detection of Water-in-Oil Droplet Formation within an Interfacial Region Formed by an Aqueous/1,2-Dichlorethane Interface Using Transient Cell Impendance Measurements at a Single High Frequency

Popis výsledku anglicky

The detection of water-in-oil (w/o) droplet formation within an interfacial region formed by an interface between an aqueous phase and 1,2-DCE using transient impedance measurements in an unconventional electrochemical cell is herein reported. Droplet formation causes a large peak-like increase in transient real cell impedance. Peaks are likely caused by significant decrease in ion concentration within the interfacial region by formation of w/o droplets containing electrolyte. Droplet formation and an accompanying interfacial stability was observed when antagonistic salts (consisting of a hydrophobic ion of ΔGtr∘,water→1,2−DCE≤ TBA + ) were mixed with conventional aqueous electrolytes in the aqueous phase. The instability manifests as Marangoni convection, causing rapid mass transport in the adjacent fluid on both sides of the liquid/liquid interface.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

GA17-09980S: Biomimetická elektrochemie emulzních mikrokapek na polarizovaném rozhraní dvou nemísitelných roztoků elektrolytů

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Russian Journal of Electrochemistry

ISSN

1023-1935

e-ISSN

—

Svazek periodika

55

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

RU - Ruská federace

Počet stran výsledku

6

Strana od-do

236-241

Kód UT WoS článku

000466932200013

EID výsledku v databázi Scopus

2-s2.0-85065227761