Mass-transport impedance at channel electrodes: accurate and approximate solutions

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dc.contributor.authorHolm, Thomas
dc.contributor.authorIngdal, Mats
dc.contributor.authorFanavoll, Espen V.
dc.contributor.authorSunde, Svein
dc.contributor.authorSeland, Frode
dc.contributor.authorHarrington, David A.
dc.date.accessioned2019-01-24T20:38:02Z
dc.date.available2019-01-24T20:38:02Z
dc.date.copyright2016en_US
dc.date.issued2016
dc.description.abstractAccurate numerical electrochemical impedance spectra at channel electrodes are obtained using commercial finite element method software. These agree with experimental measurements on the hexaammineruthenium(II/III) reversible redox couple. The numerical solutions are used as a benchmark to test the validity of some common analytical approximations for the mass-transport impedance.en_US
dc.description.reviewstatusRevieweden_US
dc.description.scholarlevelFacultyen_US
dc.description.sponsorshipFinancial support from the Natural Sciences and Engineering Research Council of Canada (discovery grant 37035), the Research Council of Norway (project 221899), the University of Victoria, and the Norwegian University of Science and Technology is gratefully acknowledged. The Research Council of Norway is also acknowledged for the support to the Norwegian Micro and NanoFabrication Facility, NorFab (197411/V30). Thomas Holm thanks the Faculty of Natural Sciences and Technology at Norwegian University of Science and Technology for the award of a scholarship.en_US
dc.identifier.citationHolm, T., Ingdal, M., Fanavoll, E.V. Sunde, S., Seland, F. & Harrington, D.A. (2016). Mass-transport impedance at channel electrodes: accurate and approximate solutions. Electrochimica Acta, 202, 84-89. https://doi.org/10.1016/j.electacta.2016.03.096en_US
dc.identifier.urihttps://doi.org/10.1016/j.electacta.2016.03.096
dc.identifier.urihttp://hdl.handle.net/1828/10554
dc.language.isoenen_US
dc.publisherElectrochimica Actaen_US
dc.subjectFEM
dc.subjectChannel electrode
dc.subjectEIS
dc.subjectLévêque approximation
dc.subjectAxial diffusion
dc.subject.departmentDepartment of Chemistry
dc.titleMass-transport impedance at channel electrodes: accurate and approximate solutionsen_US
dc.typePostprinten_US

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