Synthesis, Structure and Li Ion Conductivity of Garnet-like Li<sub>5+2x</sub>La<sub>3</sub>Nb<sub>2-x</sub>Sm<sub>x</sub>O<sub>12</sub>(0 ≤ x ≤ 0.7)
Bibliographic record
Abstract
Here, we report the synthesis, structure and Li ion conductivity of new Sm-doped garnet-type Li5+2xLa3Nb2-xSmxO12 (0 ≤ x ≤ 0.7). Powder X-ray diffraction showed the formation of cubic garnet structure up to x = 0.3. Above x = 0.3 impurity phases were observed, due to LiNbO3 (the joint committee on powder diffraction standards (JCPDS) card No. 01-074-2239), LiSmO2 (JCPDS Card No. 01-073-1061) and Sm2O3 (JCPDS Card No. 15-0813). The cubic cell constant increased from 12.774(2) Å (x = 0) to 12.851(2) Å (x = 0.3). Scanning electron microscopy showed that Sm-doping results in an increase in density of the samples, as a result of improved particle-to-particle contact. Among the samples investigated, Li5.6La3Nb1.7Sm0.3O12, showed the highest conductivity of ∼10−5 S cm−1 at 24°C which is an order of magnitude higher than that of the parent compound, Li5La3Nb2O12. The activation energy in the temperature range 25–225°C decreased with an increase in Sm-dopant in Li5+2xLa3Nb2-xSmxO12 (0.45 eV for x = 0.05 to 0.38 eV for x = 0.3). Fourier transform infrared spectroscopy studies revealed the presence of Li2CO3 in both aged and fresh samples, while thermogravimetric analysis results showed that fresh samples exhibit a lower weight loss compared to the aged samples.
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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 | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.002 | 0.001 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.002 | 0.003 |
| Insufficient payload (model declined to judge) | 0.000 | 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".