Modification of Carbon Black by Thermal Decomposition of Lead Acetylacetonate to Improve Activities for Ethanol Oxidation at Supported Pt Catalysts
Bibliographic record
Abstract
Thermal decomposition of lead acetylacetonate was used to modify high surface area carbon black supports for ethanol oxidation catalysts. X-ray diffraction showed that the main product was Pb 3 (CO 3 ) 2 (OH) 2 (basic lead carbonate). Platinum nanoparticles were prepared separately and adsorbed onto the modified supports, and electrodes were fabricated by painting catalyst inks onto carbon fibre paper. The presence of Pb 3 (CO 3 ) 2 (OH) 2 greatly enhanced the activity of the Pt nanoparticles for ethanol oxidation, particularly in cyclic voltammetry. However, a rapid decay of the enhancement was observed in chronoamperometry at low potentials, suggestion that there were changes in the nature of the Pb containing layer with time and potential in the aqueous sulfuric acid electrolyte.
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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 | 0.000 |
| 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".