A General Approach for Electrochemical Impedance Spectroscopy Simulation using Transient Mechanistic SOFC Model
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Bibliographic record
Abstract
A general approach for electrochemical impedance spectroscopy (EIS) simulation was developed by solving a 1-D transient model based on physical conservation laws. This method is not specific to a certain type of electrochemical system nor is material dependent. This approach is illustrated in this paper by developing a transient model of an anode-supported SOFC button cell consisting of Ni-YSZ|Ni-ScSZ|ScSZ|LSM-ScSZ multiple layers. In this model, instead of being considered as boundary conditions at the electrode/electrolyte interface, the electrochemical reaction zone expanded though the electrode. The transient model has been solved for imposed sinusoidal voltage perturbations at different frequencies. The results have then been transformed into EIS spectra. The EIS simulation results were compared with experimental data under different temperatures using humidified H2 fuel and air oxidant to prove the validity of the EIS modeling approach. The model was further validated by comparing the steady-state results obtained from the transient model with the polarization curves.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
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Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it