Intercalation of Water in P2, T2 and O2 Structure A<i><sub>z</sub></i>[Co<i><sub>x</sub></i>Ni<sub>1/3-</sub><i><sub>x</sub></i>Mn<sub>2/3</sub>]O<sub>2</sub>
Bibliographic record
Abstract
The intercalation of water into P2-Na 2/3 [Co x Ni 1/3 - x Mn 2/3 ]O 2 ( x = 0, 1 / 6, 1 / 3 ) and T2 or O2 structure Li 2/3 [Co x Ni 1/3 - x Mn 2/3 ]O 2 ( x = 0, 1 / 6, 1 / 3 ) has been investigated by X-ray diffraction and thermogravimetric analysis (TGA). Water can be intercalated into P2-Na 2/3 [Co x Ni 1/3 - x Mn 2/3 ]O 2 ( x = 1 / 6, 1 / 3 ) but not within P2-Na 2/3 [Ni 1/3 Mn 2/3 ]O 2 . This difference may be related to the existence of superlattice ordering of Ni atoms, but not Co atoms, within the transition metal layer which apparently induces a very strong interlayer interaction and inhibits the uptake of water. Two water-containing phases of P2-Na 2/3 (H 2 O) y [Co 1/3 Mn 2/3 ]O 2 were found and one, with y ≈ 2/3, could be prepared in pure form. By Rietveld refinement of the X-ray diffraction pattern of P2-Na 2/3 (H 2 O) 2/3 [Co 1/3 Mn 2/3 ]O 2, it can be concluded that the compound still exists in the ideal P2 structure ( P 6 3 / mmc ) with the oxygen atoms of the water molecule located on the 2c site. Water cannot be intercalated into the corresponding lithiated phases, Li 2/3 [Co x Ni 1/3 - x Mn 2/3 ]O 2 for any value of x that we tested ( x = 0, 1 / 6, 1 / 3 ).
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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 | 0.001 |
| 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".