Pulsed Laser Deposition of PdCuAu Alloy Membranes for Hydrogen Absorption Study
Bibliographic record
Abstract
Finding suitable binary and ternary alloys for hydrogen purification membranes remains a challenge due to the vast compositional range to be studied. In this context, we proposed a new combination of alloy fabrication (as thin film) by pulsed laser deposition (PLD) and subsequent hydrogen solubility characterization by electrochemical in situ X-ray diffraction (E in situ XRD) able to rapidly screen alloys in a broad range of compositions. In this study, we demonstrated the capabilities of this new technique on the PdCuAu system. A FCC solid solution was formed in the full explored composition range (Pd = 15–100 at. %, Cu = 0–80 at. %, Au = 0–30 at. %). Structural reorganization, relieving some strain in the lattice, was observed during the first electrochemical hydrogen–dehydrogenation cycles. Using E in situ XRD to study the hydrogen solubility of PdCuAu alloys, we confirmed that the Pd content in the alloy is the primary parameter driving hydrogen solubility. Replacing Cu with Au slightly enhanced the hydrogen solubility of PdCuAu.
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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 | 0.001 | 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".