A microfluidic electrochemical cell with integrated PdH reference electrode for high current experiments

dc.contributor.authorFanavoll, Espen V.
dc.contributor.authorHarrington, David A.
dc.contributor.authorSunde, Svein
dc.contributor.authorSingh, Gurvinder
dc.contributor.authorSeland, Frode
dc.date.accessioned2019-05-03T12:32:31Z
dc.date.available2019-05-03T12:32:31Z
dc.date.copyright2017en_US
dc.date.issued2017
dc.description.abstractAn on-chip thin-film palladium hydride reference electrode is described for use with microfluidic electrochemical cells. A Pd electrode fabricated by photolithographic methods is charged with hydrogen in-situ with a simple current step technique. The placement of the reference electrode in a side channel means that it is unaffected by species in the main channel. Placement upstream of the working and sense electrodes is shown to be a significant improvement over cells with the reference electrode placed externally. The adverse effects of solution resistance are investigated quantitatively, and it is shown that the described configuration allows for high current experiments while maintaining accurate potential measurement. A simple formula for calculating the maximum current density for a certain cell geometry and electrolyte resistivity is presented.en_US
dc.description.reviewstatusRevieweden_US
dc.description.scholarlevelFacultyen_US
dc.description.sponsorshipThis work is supported by funds from the Research Council of Norway (221899) and the Natural Sciences and Engineering Research Council of Canada (37035). The Research Council of Norway is further acknowledged for the support to the Norwegian Micro- and Nano-Fabrication Facility, NORFAB (245963). NorFab NTNU NanoLab is acknowledged for facilitating the fabrication of the microfluidic cells.en_US
dc.identifier.citationFanavoll, E.V., Harrington, D.A., Sunde, S., Singh, G. & Seland, F.(2017). A microfluidic electrochemical cell with integrated PdH reference electrode for high current experiments. Electrochimica Acta, 225, 69-77. https://doi.org/10.1016/j.electacta.2016.11.147en_US
dc.identifier.urihttps://doi.org/10.1016/j.electacta.2016.11.147
dc.identifier.urihttp://hdl.handle.net/1828/10839
dc.language.isoenen_US
dc.publisherElectrochimica Actaen_US
dc.subjectMicrofluidics
dc.subjectElectrochemistry
dc.subjectPalladium hydride
dc.subjectReference electrode
dc.subjectIR drop
dc.subject.departmentDepartment of Chemistry
dc.titleA microfluidic electrochemical cell with integrated PdH reference electrode for high current experimentsen_US
dc.typePostprinten_US

Files

Original bundle
Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
Fanavoll_Espen_ElectrochimActa_2017.PDF
Size:
3.46 MB
Format:
Adobe Portable Document Format
Description:
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description: