Synthesis and Characterization of Nanosized (DyO<sub>1.5</sub>)<sub>x</sub>(WO<sub>3</sub>)<sub>y</sub>(BiO<sub>1.5</sub>)<sub>1-x-y</sub> for Lower Temperature SOFC Application
Bibliographic record
Abstract
The high ionic conductivity (DyO 1.5 ) x (WO 3 ) y (BiO 1.5 ) 1-x-y (DWSB) material was synthesized using a coprecipitation method. Adding the acid solution containing Dy(NO 3 ) 3 and Bi(NO 3 ) 3 to the basic solution containing (NH 4 ) 10 W 12 O 41 •5H 2 O, a DWSB precursor was formed. Upon calcination, nano-sized (DyO 1.5 ) x (WO 3 ) y (BiO 1.5 ) 1-x-y powder with the appropriate fluorite phase is generated. This nanopowder was incorporated into a composite cathode with La0.80Sr0.20MnO3-δ (LSM) using the glycine-nitrate process to coat the DWSB with the LSM. The two phases are mixed at the nano-scale and no reactivity between the two phases is observed. The ASR values for this cathode (0.17 Ω-cm 2 at 600⁰C) is reduced by a half order of magnitude compared with the same composition mixed with solid state methods (0.45 Ω-cm 2 at 600⁰C). Furthermore, the ASR values are significantly reduced from composite cathodes of LSM and common ionic conductors, namely LSM-GDC (1.3 Ω-cm 2 at 600⁰C) and LSM-YSZ (1.5 Ω-cm 2 at 600⁰C).
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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 | 0.002 | 0.001 |
| Meta-epidemiology (narrow) | 0.003 | 0.003 |
| Meta-epidemiology (broad) | 0.003 | 0.001 |
| Bibliometrics | 0.002 | 0.003 |
| Science and technology studies | 0.003 | 0.002 |
| Scholarly communication | 0.001 | 0.005 |
| Open science | 0.002 | 0.000 |
| Research integrity | 0.002 | 0.002 |
| Insufficient payload (model declined to judge) | 0.000 | 0.001 |
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".