Effect of Microwave Irradiation Parameters on Co/Fe Hydrotalcite Nanocatalysts for the Total Oxidation of VOCs
Bibliographic record
Abstract
A series of Co/Fe hydrotalcite‐like samples were prepared by the traditional co‐precipitation method and treated under microwave irradiation at different temperatures, powers, and for various durations. The resulting samples have been calcined to obtain the nano‐oxide catalysts. Characterization by different physicochemical techniques including X‐ray diffraction (XRD), scanning electron microscopy (SEM), temperature programmed reduction by hydrogen (H2‐TPR), and X‐ray photoelectron spectrometry (XPS) was carried out. The nanocatalysts were also tested in the total oxidation of propene. Comparing both conventional and microwave synthesis, a significant improvement in the catalytic activity was found for the samples prepared with microwave treatment. A minimum of irradiation time, power, and temperature (1 min, 40 W, and 40 °C) is enough to get higher surface area, larger pore size, smaller crystallite size, and a higher amount of reducible species than those for the non‐irradiated solid. All these factors are responsible for the enhancement of the catalytic activity.
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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".