Effects of metal support interaction on dry reforming of methane over Ni/<scp>Ce‐Al<sub>2</sub>O<sub>3</sub></scp>catalysts
Bibliographic record
Abstract
Abstract Dry (CO 2 ) reforming of methane is conducted over two newly synthesized Ni20/Ce‐γAl 2 O 3 and Ni20/Ce‐meso‐Al 2 O 3 catalysts. The x‐ray diffraction (XRD) patterns indicated that Ni20/Ce‐meso‐Al 2 O 3 exhibits a better dispersion of nickel, while Ni20/Ce‐γAl 2 O 3 has larger amounts of nickel crystallites. The temperature programmed desorption (TPD) kinetics analysis indicated that Ni20/Ce‐meso‐Al 2 O 3 had a lesser metal‐support interaction than the Ni20/Ce‐γAl 2 O 3 . The thermal gravimetric analysis (TGA) indicated that the incorporation of ceria into the Al 2 O 3 matrix helps to stabilize Ni20/Ce‐meso‐Al 2 O 3 during dry reforming of methane. The temperature programmed reduction (TPR) indicated that the synthesized catalysts were sufficiently reducible below 750 °C. A fixed bed reactor evaluation (at 750 °C) showed that both catalysts can facilitate methane reforming to syngas with minimal coking throughout the 30 hours time‐on‐stream (TOS). However, Ni20/Ce‐meso‐Al 2 O 3 is more promising in terms of prolonged stability for dry reforming applications. Moreover, the syngas yield for Ni20/Ce‐γAl 2 O 3 is close to equilibrium prediction during the first 1 hour of reaction time.
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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 | 0.003 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 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".