Electrochemical Characterisation of Nanoscale Liquid | Liquid Interfaces Located at Focused Ion Beam-Milled Silicon Nitride Membranes
MetadataShow full item record
The electrochemical behaviour of single and arrayed nanoscale interfaces between two immiscible electrolyte solutions (single and array nanoITIES) is presented. The interfaces were formed at nanopores fabricated through the focused ion beam (FIB) milling of silicon nitride (SiN) membranes by using nanopores with approximately 30–80 nm radii and with pore-to-pore separations to pore radius ratios in the range of 16–32. Electrochemistry was performed through the interfacial transfer of tetrapropylammonium (TPrA+) across single and array nanoITIES between water and 1,6-dichlorohexane. The ion-transfer limiting current at the single nanoITIES was in excellent agreement with the current predicted by using an inlaid disc interface model. At nanoITIES arrays, experimental currents were lower than predicted for an array of inlaid interfaces, which is attributed to overlapped diffusion zones. As a result, FIB milling offers an attractive strategy to form nanoITIES for diverse investigations.
This is the accepted version of the following article: Sairi, M. and Chen-Tan, N. and Neusser, G. and Kranz, C. and Arrigan, D. 2014. Electrochemical Characterisation of Nanoscale Liquid|Liquid Interfaces Located at Focused Ion Beam-Milled Silicon Nitride Membranes. ChemElectroChem. 2 (1): pp. 98-105, which has been published in final form at http://doi.org/10.1002/celc.201402252
Showing items related by title, author, creator and subject.
Ion-Transfer Electrochemistry at Arrays of Nanointerfaces between Immiscible Electrolyte Solutions Confined within Silicon Nitride Nanopore MembranesScanlon, M.; Strutwolf, J.; Blake, A.; Iacopino, D.; Quinn, A.; Arrigan, Damien (2010)Ion transfer across interfaces between immiscible liquids provides a means for the nonredox electrochemical detection of ions. Miniaturization of such interfaces brings the benefits of enhanced mass transport. Here, the ...
Electrochemical Characterisation of Nanoscale Liquid j Liquid Interfaces Located at Focused Ion Beam-Milled Silicon Nitride MembranesSairi, M.; Chen-Tan, Nigel; Neusser, G.; Kranz, C.; Arrigan, Damien (2014)The electrochemical behaviour of single and arrayed nanoscale interfaces between two immiscible electrolyte solutions (single and array nanoITIES) is presented. The interfaces were formed at nanopores fabricated through ...
Liu, Yang; Sairi, M.; Neusser, G.; Kranz, C.; Arrigan, Damien (2015)In this work, independent radial diffusion at arrayed nanointerfaces between two immiscible electrolyte solutions (nanoITIES) was achieved. The arrays were formed at nanopores fabricated by focused ion beam milling of ...