EIS Study of Nickel Deposition in Borate–Sulfate Solutions
Bibliographic record
Abstract
A physicochemical model for nickel deposition on a nickel rotating disk electrode is statistically fit to experimental electrochemical impedance spectroscopy (EIS) data obtained in borate–sulfate solutions containing 0.05, 0.1, and 0.2 M over a range of electrode potentials and to steady-state polarization curves in the same solutions. The model accounts for the simultaneous evolution of hydrogen and for the adsorption–desorption of borate, as well as the transport of dissolved species to the electrode surface. The kinetic parameters are estimated by minimization of the sum-of-squares error between the model and measurements using a genetic algorithm. An analysis of the model provides supporting evidence that the first step of Ni(II) reduction controls the rate of deposition and that the intermediate is rapidly consumed by the second step of the reaction. Fitting the model to the experimental EIS spectra shows that the system is sensitive to certain kinetic parameters but is insensitive to others. Furthermore, it is not possible for the model to satisfactorily fit all of the EIS spectra with a unique set of kinetic parameters. By contrast, the model is shown to fit very well the steady-state polarization curves obtained at different concentrations with a single set of parameters.
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How this classification was reachedexpand
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 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".