Preparation, Structure, and Thermal Stability of New Ni<i><sub>x</sub></i>Co<sub>1-2</sub><i><sub>x</sub></i>Mn<i><sub>x</sub></i>(OH)<sub>2</sub> (0 ≤ <i>x</i> ≤ <sup>1</sup>/<sub>2</sub>) Phases
Bibliographic record
Abstract
The preparation, characterization, and thermal stability of Ni x Co 1 - 2 x Mn x (OH) 2 (0 ≤ x ≤ 1 / 2 ) is reported. These hydroxides are prepared by coprecipitation as the first step in the preparation of the corresponding Li[Ni x Co (1 - 2 x ) Mn x ]O 2 (0 ≤ x ≤ 1 / 2 ) oxides. Precipitates dried at room temperature adopt the hexagonal CdI 2 structure. Thermal studies show that the hexagonal CdI 2 type (RT) structure transforms to a cubic spinel-type solid solution (Ni x Co (1 - 2 x ) Mn x ] 3 O 4 (0 ≤ x ≤ 3 / 8 ) above about 150 °C that becomes well-crystallized at 600 °C. An intermediate turbostratic structure phase occurs between room temperature and 150 °C. This phase is present in small amounts in room-temperature-dried Ni x Co 1 - 2 x Mn x (OH) 2 materials with x ≥ 3 / 8 . The results show that the drying method of the precipitate induces different phases with different bulk and tap density. This could have a major influence on the morphology, composition, density, and cell performance of Li[Ni x Co (1 - 2 x ) Mn x ]O 2 (0 ≤ x ≤ 1 / 2 ) oxides obtained from these dried precipitates.
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 | 0.003 | 0.002 |
| Meta-epidemiology (narrow) | 0.004 | 0.005 |
| Meta-epidemiology (broad) | 0.005 | 0.001 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.002 |
| Scholarly communication | 0.001 | 0.003 |
| Open science | 0.002 | 0.001 |
| Research integrity | 0.002 | 0.001 |
| 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; both teacher heads agree on what is shown here.
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".