Physicochemical Studies of Adsorptive Denitrogenation by Oxidized Activated Carbons
Bibliographic record
Abstract
A commercially available activated carbon was oxidized by concentrated sulfuric acid, saturated ammonium persulfate solution, and mixed sulfuric acid and ammonium persulfate, respectively. The original carbon and the modified carbons were evaluated by batch adsorption using model diesel fuels. The pore structure and surface chemistry of adsorbents were characterized with N 2 adsorption/desorption, Fourier transform infrared spectroscopy, and Boehm’s titration. Both physical and chemical aspects of the selectively adsorptive denitrogenation of oxidized activated carbons were investigated. Appropriate oxidation can promote the carbon’s ability to adsorb nitrogen-containing compounds. The effect of the density of acidic oxygen-functional groups on the adsorption of nitrogen-containing compounds was demonstrated by the regression method and quantum chemistry calculations. The capacities due to physisorption were also estimated. The behaviors of N-containing compounds in a competitive adsorption system were dependent on the molecular size and the properties of adsorbates.
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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 | 0.001 |
| 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 | 0.001 |
| 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".