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NETL Electrical Conductivity Relaxation(ECR) Analysis Tool
L o a d i n g
Owner
National Energy Technology Laboratory (NETL) - view all
Update frequencyunknown
Last updatedalmost 2 years ago
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Overview

This application was developed within the solid oxide fuel cell (SOFC) work plan. It calculates the oxygen surface exchange coefficient (k) and oxygen diffusion coefficient (D) for an oxide sample using electrical conductivity relaxation (ECR) data. The tool also produces a heat map showing the associated uncertainty in fitting the ECR data for given pairs of k and D values, so the user can determine the most likely range of k and D values for the tested values. Multiple datasets for the same material can be plotted to decrease uncertainty. The tool can also simulate ECR curves for inputted k and D values and overlay the simulated curves with experimental data for comparison.

electrical conductivity relaxationmixed conductorsoxygen diffusionsurface exchange
Additional Information
KeyValue
citationTitle: Enhanced accuracy of electrochemical kinetic parameters determined by electrical conductivity relaxation Authors: Beom Tak Na, Tao Tang, Jian Liu, Shiwoo Lee, Harry Abernathy, Thomas Kalapos, Gregory Hackett Manuscript submitted and accepted by the journal Solid State Ionics in 2021, DOI: 10.18141/1762415
netl_productyes
poc_emailSteven.Richardson@netl.doe.gov
point_of_contactSteven Richardson
program_or_projectSOFC FWP
project_numberFWP-1022411
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