The sloped limiting current region during ion transfer at arrays of nanointerfaces between immiscible electrolyte solutions
The formation of arrays of nano-interfaces between immiscible electrolyte solutions using nanoporous membranes opens up new opportunities in electrochemical analysis. However, an unusual feature in the voltammetry, in the form of a consistently sloped current in the limiting current region, has been...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Published: |
2024
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| Online Access: | http://hdl.handle.net/20.500.11937/94717 |
| _version_ | 1848765903884255232 |
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| author | Rimboud, Mickaël Austen, Benjamin J.J. Strutwolf, Jörg Liu, Yang Arrigan, Damien |
| author_facet | Rimboud, Mickaël Austen, Benjamin J.J. Strutwolf, Jörg Liu, Yang Arrigan, Damien |
| author_sort | Rimboud, Mickaël |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The formation of arrays of nano-interfaces between immiscible electrolyte solutions using nanoporous membranes opens up new opportunities in electrochemical analysis. However, an unusual feature in the voltammetry, in the form of a consistently sloped current in the limiting current region, has been observed. This sloped limiting current was observed using different alkylammonium cation transfers at the nanoITIES arrays, showing the generality of the feature. Experiments with variable concentrations of organic or aqueous phase electrolytes revealed that the sloped limiting current was impacted by the concentration of the aqueous phase electrolyte. A plausible explanation for the effect is discussed based on ternary electrodiffusion which occurs due to facilitated ion transfer of the aqueous phase background electrolyte cation. As a result, the use of nanoITIES arrays as the basis for chemical sensors and detection needs to be carefully considered. |
| first_indexed | 2025-11-14T11:42:39Z |
| format | Journal Article |
| id | curtin-20.500.11937-94717 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T11:42:39Z |
| publishDate | 2024 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-947172024-05-22T05:54:08Z The sloped limiting current region during ion transfer at arrays of nanointerfaces between immiscible electrolyte solutions Rimboud, Mickaël Austen, Benjamin J.J. Strutwolf, Jörg Liu, Yang Arrigan, Damien The formation of arrays of nano-interfaces between immiscible electrolyte solutions using nanoporous membranes opens up new opportunities in electrochemical analysis. However, an unusual feature in the voltammetry, in the form of a consistently sloped current in the limiting current region, has been observed. This sloped limiting current was observed using different alkylammonium cation transfers at the nanoITIES arrays, showing the generality of the feature. Experiments with variable concentrations of organic or aqueous phase electrolytes revealed that the sloped limiting current was impacted by the concentration of the aqueous phase electrolyte. A plausible explanation for the effect is discussed based on ternary electrodiffusion which occurs due to facilitated ion transfer of the aqueous phase background electrolyte cation. As a result, the use of nanoITIES arrays as the basis for chemical sensors and detection needs to be carefully considered. 2024 Journal Article http://hdl.handle.net/20.500.11937/94717 10.1016/j.jelechem.2024.118105 http://creativecommons.org/licenses/by/4.0/ http://purl.org/au-research/grants/arc/DP130102040 fulltext |
| spellingShingle | Rimboud, Mickaël Austen, Benjamin J.J. Strutwolf, Jörg Liu, Yang Arrigan, Damien The sloped limiting current region during ion transfer at arrays of nanointerfaces between immiscible electrolyte solutions |
| title | The sloped limiting current region during ion transfer at arrays of nanointerfaces between immiscible electrolyte solutions |
| title_full | The sloped limiting current region during ion transfer at arrays of nanointerfaces between immiscible electrolyte solutions |
| title_fullStr | The sloped limiting current region during ion transfer at arrays of nanointerfaces between immiscible electrolyte solutions |
| title_full_unstemmed | The sloped limiting current region during ion transfer at arrays of nanointerfaces between immiscible electrolyte solutions |
| title_short | The sloped limiting current region during ion transfer at arrays of nanointerfaces between immiscible electrolyte solutions |
| title_sort | sloped limiting current region during ion transfer at arrays of nanointerfaces between immiscible electrolyte solutions |
| url | http://hdl.handle.net/20.500.11937/94717 |