Oxygen Reduction Reaction Properties of Cobalt-Free Perovskites for SOFCs
Bibliographic record
Abstract
In this study, the oxygen reduction reaction (ORR) properties of Co-free perovskite-type Ba0.5Sr0.5Fe0.91Al0.09O3-δ (BSFAl009), and Ba0.5Sr0.5Fe0.8Cu0.2O3-δ (BSFCu) were investigated with proton conducting Ba0.5Sr0.5Ce0.6Zr0.2Gd0.1Y0.1O3-δ (BSCZGY) and oxide ion conducting La0.8Sr0.2Ga0.8Mg0.2O3-δ (LSGM) electrolytes. BSFAl009 and BSFCu were synthesized through sol-gel method. BSFCu-LSGM/LSGM/BSFCu-LSGM symmetrical cell showed the lowest area specific resistance (ASR) of 0.08 Ωcm2 in air at 800 °C, while BSFCu-BSCZGY/BSCZGY/BSFCu-BSCZGY symmetrical cell showed slightly lower performance (0.25 Ωcm2) under the same condition. To further understand the oxygen consumption and release properties in these oxides, thermo-gravimetric analysis was also performed in air/N2.
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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 | 0.000 | 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 | 0.001 | 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) | 0.000 | 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; a candidate call from one teacher head, 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".