Probing Interfacial Co‐Crystallisation using Simultaneous Potential and Current Measurements at Liquid‐Liquid Interfaces Polarised by Common Ion Approach
Abstract The simultaneous measurement of potential and current variations at the interface between two immiscible electrolyte solutions, which was polarised using tetraalkylammonium cations as a common ion, is reported here. Various concentration ratios of tetramethyl‐, tetraethyl‐, or tetrapropylam...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley-VCH
2022-11-01
|
| Series: | ChemElectroChem |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/celc.202200978 |
| _version_ | 1797776094081843200 |
|---|---|
| author | Magdalena Kaliszczak Imane Bamou Marina Garcia‐Atance Dr. Franca Jones Prof. Dr. Damien W. M. Arrigan Dr. Grégoire Herzog |
| author_facet | Magdalena Kaliszczak Imane Bamou Marina Garcia‐Atance Dr. Franca Jones Prof. Dr. Damien W. M. Arrigan Dr. Grégoire Herzog |
| author_sort | Magdalena Kaliszczak |
| collection | DOAJ |
| description | Abstract The simultaneous measurement of potential and current variations at the interface between two immiscible electrolyte solutions, which was polarised using tetraalkylammonium cations as a common ion, is reported here. Various concentration ratios of tetramethyl‐, tetraethyl‐, or tetrapropylammonium were dissolved in each phase. Such biphasic systems were then used to verify that the measured interfacial potential difference agreed with theory. This experimental set‐up was then used to probe the interfacial cocrystallisation process of hydrophilic, cationic caffeine with lipophilic 1‐hydroxy‐2‐naphtoic acid (1H2N). The presence of caffeine in the aqueous phase led to higher current values, caused by interfacial charge transfer. Electrochemical noise analysis suggested that a two‐step process was occurring at the ITIES (i) a potential‐driven nucleation with the transfer of caffeine from the aqueous to the organic phase; (ii) a growth stage where the interfacial potential no longer plays a role. |
| first_indexed | 2024-03-12T22:45:02Z |
| format | Article |
| id | doaj.art-4068f4e3418e4c81b9fb91d33b0642b8 |
| institution | Directory Open Access Journal |
| issn | 2196-0216 |
| language | English |
| last_indexed | 2024-03-12T22:45:02Z |
| publishDate | 2022-11-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | ChemElectroChem |
| spelling | doaj.art-4068f4e3418e4c81b9fb91d33b0642b82023-07-21T06:16:09ZengWiley-VCHChemElectroChem2196-02162022-11-01921n/an/a10.1002/celc.202200978Probing Interfacial Co‐Crystallisation using Simultaneous Potential and Current Measurements at Liquid‐Liquid Interfaces Polarised by Common Ion ApproachMagdalena Kaliszczak0Imane Bamou1Marina Garcia‐Atance2Dr. Franca Jones3Prof. Dr. Damien W. M. Arrigan4Dr. Grégoire Herzog5Université de Lorraine CNRS LCPME 54000 Nancy FranceUniversité de Lorraine CNRS LCPME 54000 Nancy FranceUniversité de Lorraine CNRS LCPME 54000 Nancy FranceSchool of Molecular and Life Sciences Curtin University GPO Box U1987 Perth Western Australia 6845 AustraliaSchool of Molecular and Life Sciences Curtin University GPO Box U1987 Perth Western Australia 6845 AustraliaUniversité de Lorraine CNRS LCPME 54000 Nancy FranceAbstract The simultaneous measurement of potential and current variations at the interface between two immiscible electrolyte solutions, which was polarised using tetraalkylammonium cations as a common ion, is reported here. Various concentration ratios of tetramethyl‐, tetraethyl‐, or tetrapropylammonium were dissolved in each phase. Such biphasic systems were then used to verify that the measured interfacial potential difference agreed with theory. This experimental set‐up was then used to probe the interfacial cocrystallisation process of hydrophilic, cationic caffeine with lipophilic 1‐hydroxy‐2‐naphtoic acid (1H2N). The presence of caffeine in the aqueous phase led to higher current values, caused by interfacial charge transfer. Electrochemical noise analysis suggested that a two‐step process was occurring at the ITIES (i) a potential‐driven nucleation with the transfer of caffeine from the aqueous to the organic phase; (ii) a growth stage where the interfacial potential no longer plays a role.https://doi.org/10.1002/celc.202200978biphasic systemscocrystallisationcommon ionElectrochemical noiseITIES |
| spellingShingle | Magdalena Kaliszczak Imane Bamou Marina Garcia‐Atance Dr. Franca Jones Prof. Dr. Damien W. M. Arrigan Dr. Grégoire Herzog Probing Interfacial Co‐Crystallisation using Simultaneous Potential and Current Measurements at Liquid‐Liquid Interfaces Polarised by Common Ion Approach ChemElectroChem biphasic systems cocrystallisation common ion Electrochemical noise ITIES |
| title | Probing Interfacial Co‐Crystallisation using Simultaneous Potential and Current Measurements at Liquid‐Liquid Interfaces Polarised by Common Ion Approach |
| title_full | Probing Interfacial Co‐Crystallisation using Simultaneous Potential and Current Measurements at Liquid‐Liquid Interfaces Polarised by Common Ion Approach |
| title_fullStr | Probing Interfacial Co‐Crystallisation using Simultaneous Potential and Current Measurements at Liquid‐Liquid Interfaces Polarised by Common Ion Approach |
| title_full_unstemmed | Probing Interfacial Co‐Crystallisation using Simultaneous Potential and Current Measurements at Liquid‐Liquid Interfaces Polarised by Common Ion Approach |
| title_short | Probing Interfacial Co‐Crystallisation using Simultaneous Potential and Current Measurements at Liquid‐Liquid Interfaces Polarised by Common Ion Approach |
| title_sort | probing interfacial co crystallisation using simultaneous potential and current measurements at liquid liquid interfaces polarised by common ion approach |
| topic | biphasic systems cocrystallisation common ion Electrochemical noise ITIES |
| url | https://doi.org/10.1002/celc.202200978 |
| work_keys_str_mv | AT magdalenakaliszczak probinginterfacialcocrystallisationusingsimultaneouspotentialandcurrentmeasurementsatliquidliquidinterfacespolarisedbycommonionapproach AT imanebamou probinginterfacialcocrystallisationusingsimultaneouspotentialandcurrentmeasurementsatliquidliquidinterfacespolarisedbycommonionapproach AT marinagarciaatance probinginterfacialcocrystallisationusingsimultaneouspotentialandcurrentmeasurementsatliquidliquidinterfacespolarisedbycommonionapproach AT drfrancajones probinginterfacialcocrystallisationusingsimultaneouspotentialandcurrentmeasurementsatliquidliquidinterfacespolarisedbycommonionapproach AT profdrdamienwmarrigan probinginterfacialcocrystallisationusingsimultaneouspotentialandcurrentmeasurementsatliquidliquidinterfacespolarisedbycommonionapproach AT drgregoireherzog probinginterfacialcocrystallisationusingsimultaneouspotentialandcurrentmeasurementsatliquidliquidinterfacespolarisedbycommonionapproach |