Effect of Pentanol on Morphologies and Pore Structure of Mesoporous Silica
Bibliographic record
Abstract
Using wormlike micelles of cetyltrimethylammonium bromide (CTAB) and nitric acid as templates, fibrous mesoporous silica was synthesized and the effects of pentanol on the morphologies and ordered pore structure of mesoporous silica were studied. The resulting mesoporous silica was characterized by small-angle X-ray diffraction, nitrogen adsorption−desorption measurements, and scanning electron microscopy. Results showed that the amount of mesoporous silica with fibrous shapes decreased with the decrease of the molar ratio of CTAB to pentanol and that mesoporous silica with a spherical appearance only was obtained at a molar ratio of 1:3 (CTAB to pentanol). The pore structure of mesoporous silica was more ordered when the molar ratio of CTAB to pentanol was between 1:1 and 1:2, and distances between centers of two adjacent pores increased with the decrease of the molar ratio of CTAB to pentanol. There existed a type IV adsorption isotherm and an H1 hysteresis loop in N 2 adsorption−desorption curves; total pore volume and most probable pore size with Barrett−Joyner−Halenda diameter increased with the decrease of the molar ratio of CTAB to pentanol. The result was in agreement with that of small-angle X-ray diffraction.
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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) | 0.001 | 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 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".