Structural Perturbations in Mesoporous Silica Microspheres Prepared Using Cationic Organosilanes.
Bibliographic record
Abstract
Mesoporous MSU silica microspheres were prepared by the hydrolysis of tetraethoxysilane (TEOS) in mildly acidic aqueous nonionic surfactant solutions in the presence of small amounts (molar percentage up to 1.25% with respect to TEOS) of cationic organotrialkoxysilanes (N-((trimethoxysilyl)propyl)-N,N,N-trimethylammonium chloride, N-((trimethoxysilyl)propyl)-N,N,N-tributylammonium chloride, and N-((trimethoxysilyl)propyl)- ammonium chloride). The incorporation of increasing amounts of cationic organotrialkoxysilanes results in the formation of microspherical MSU silica with increasingly perturbed mesopore structure (bimodal pore size distributions in the 30−120 Å range) and increasingly textural morphology. Functionalized derivatives of the microspheres were prepared by the substitution of TEOS with 3-mercaptopropyltrimethoxysilane (MPTMS) in the synthesis mixture. Gold ion adsorption studies were performed on the resulting microspheres, which showed that mildly perturbed microspheres, maintaining an adequate degree of uniformity in their mesopores, had optimal adsorption capacity and improved adsorption kinetics compared with both unperturbed and highly perturbed microspherical mesostructures.
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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) | 0.007 | 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".