Applications of Pore-Expanded Mesoporous Silica. 2. Development of a High-Capacity, Water-Tolerant Adsorbent for CO<sub>2</sub>
Why is this work in the frame?
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Full frame distilled prediction
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.
- Candidate categories
- Meta-epidemiology (narrow)
- Consensus categories
- none
- Domain
- Candidate signal: noneConsensus signal: none
- Study design
- Candidate signal: Bench or experimentalConsensus signal: Bench or experimental
- Genre
- Candidate signal: EmpiricalConsensus signal: Empirical
- Teacher disagreement score
- 0.025
- Threshold uncertainty score
- 1.000
- Validation status
machine_predicted_unvalidated·codex-gemma-dda1882f352a
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 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 | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
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.
- Teacher spread
- 0.236 · how far apart the two teachers sit on this one work
- Validation status
score_only:v0-immature-baseline· verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it
Abstract
A novel high-capacity, water-tolerant adsorbent for CO 2 was developed. It consisted of diethanolamine (DEA) loaded pore-expanded MCM-41 silica (PE-MCM-41). Due to its very large pore volume, PE-MCM-41 silica was capable of accommodating a greater quantity of amine resulting in higher CO 2 adsorption capacity compared to the other supports including activated carbon, silica gel, and standard MCM-41 silica. Adsorption measurements were conducted by gravimetry using dry CO 2 to obtain uptake curves and apparent rate data. The capacity and uptake rate reached maxima with respect to amine content and then declined due to the deposition of excess amine on the particle's external surface and within the interparticle voids. At CO 2 partial pressures below 0.15 atm, the current DEA loaded PE-MCM-41 adsorbent was found to be superior to the more conventional zeolite 13X. Adsorption studies with humid CO 2 revealed that the adsorption capacity of the PE-MCM-41-based material was insensitive to the presence of moisture, which represents a major advantage over zeolite 13X. Repeated adsorption−desorption cycles revealed that our novel adsorbent exhibited good cyclic stability.
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.
The record
- Venue
- Industrial & Engineering Chemistry Research
- Topic
- Carbon Dioxide Capture Technologies
- Field
- Engineering
- Canadian institutions
- University of Ottawa
- Funders
- Canada Research ChairsGovernment of Canada
- Keywords
- AdsorptionChemical engineeringZeoliteMCM-41DiethanolamineDesorptionMesoporous silicaMesoporous materialMaterials scienceAmine gas treatingMolecular sieveActivated carbonChromatographyChemistryOrganic chemistryCatalysis
- Has abstract in OpenAlex
- yes