Thermally Sprayed Low Cost Current Collectors with Optimized Mass Transport Behavior for PEM Electrolyzers
Bibliographic record
Abstract
The costs of the Proton Exchange Membrane (PEM) electrolyzer system need to be reduced while maintaining high performance. The stack component costs comprise 60% of the total system costs in which the bipolar plates and the current collectors are the main factors. In this thesis the facts that current collectors are produced by Vacuum Plasma Spraying (VPS) are discussed and described and are characterized physically as well as electrochemically. The developed graded structures exhibit improved properties regarding conductivity and water transport. The optimal structures for the layer contacting the electrode have pore diameters between 6 and 17um and porousness between 17 and 30%. X-Ray scanning tomography (performed at the University of Toronto) enables 3D reconstructions of the samples confirming the porosity and pore distribution. Moreover, a model in OpenPNM was used to predict the movement of the gases through the current collectors.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.000 |
| 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)
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".