Synthesis of exopolysaccharide-based organo-montmorillonite with improved affinity towards carbon dioxide and hydrophilic character
Bibliographic record
Abstract
Grafting of a bio-sourced exopolysaccharide (EPS) using a disulfide ethyl moiety with two ammonium ends as interface on Na + -exchanged montmorillonite (NaMt) turned out to be a “green” route to produce an OH-enriched organoclay with improved affinity towards CO 2 and moisture. Characterization through X-ray diffraction, infrared spectroscopy and thermogravimetric analysis revealed an organized structure with an increased basal spacing that facilitates the diffusion of CO 2 and water molecules and thermal stability up to 190 °C. Measurements through thermal programmed desorption (TPD) showed that at least 16 CO 2 molecules are adsorbed per OH group incorporated via HO:CO 2 interactions between CO 2 molecules and both EPS, and adsorbed water molecules. Adsorbed CO 2 can be completely released below 190 °C. This opens promising prospects for designing respiratory devices that support vegetal-derived moieties that can capture non-stoichiometric amounts of CO 2 in CO 2 -rich gas mixtures and enclosures with non-thermal regeneration.
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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".