Nanostructured Pt Surfaces with Ir Submonolayers for Enhanced NH<sub>3</sub> Electro‐oxidation
Bibliographic record
Abstract
Abstract Preferentially (100)‐oriented nanostructured platinum films were modified by subsequent surface functionalization with iridium through pulsed electrodeposition. The Ir surface coverage was adjusted by varying the number of applied electrodeposition pulses, and was found to modify the reactivity towards NH3 oxidation. Deposition of minute amount of Ir atoms ([Ir]=6 at%) at the surface of preferentially (100)‐oriented Pt leads to a decrease in the NH3 oxidation onset potential (from −430 to −500 mV vs. Hg/HgO), an increase in the current density (at −0.30 V) from 0.55 to 0.67 mA cm−2, and an increase in the poisoning resistance over polarization at constant potential. This is attributed to the preferential adsorption of Ir atoms at Pt(100) step sites close to the Pt(100) terraces that are known to be the more active for the electro‐oxidation of NH3.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| 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) | 0.001 | 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 source (direct Gemma or distilled Codex), 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".