Bonding of Organic Amino, Vinyl, and Acryl Groups to Nanometer-Sized NaX Zeolite Crystal Surfaces
Bibliographic record
Abstract
Nanometer-sized faujasite zeolite (nanoNaX), synthesized with an organic-additive-free approach, was modified with organic functional groups. Raman scattering and solid-state NMR techniques were employed to study the organic components on the zeolites, the structures of the zeolitic frameworks, and the connections between the organosilyl groups and zeolitic silanol groups. Aminopropylsilyl (APS) and vinylsilyl (VS) groups were covalently grafted to the zeolitic surfaces by directly reacting the nanozeolite with corresponding organosilanes. Although the acryloyl group cannot be introduced onto the zeolitic surface by directly reacting nanoNaX with acryloyl chloride, acrylation can be achieved with APS-modified nanozeolite. 29 Si solid-state NMR studies clearly indicate the transformation of zeolitic silicate species from Q 3 to Q 4 with organosilyl modification. This shows that the connections between the organosilyl groups and the zeolitic silanol groups can be represented as RSi(OSi zeolite ) x . In the APS-nanoNaX and Acryl-APS-nanoNaX modified materials, the presence of strong T 2 29 Si NMR resonance signals indicates that the connection is mainly in the form RSi(OSi zeolite ) 2 . However, in the VS-nanoNaX, the main connection is RSi(OSi zeolite ) 3 as the 29 Si chemical shift of the organosilyl species is found at −65 ppm, i.e., consistent with a T 3 structure.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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".