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 Ba 0.5 Sr 0.5 Fe 0.91 Al 0.09 O 3-δ (BSFAl009), and Ba 0.5 Sr 0.5 Fe 0.8 Cu 0.2 O 3-δ (BSFCu) were investigated with proton conducting Ba 0.5 Sr 0.5 Ce 0.6 Zr 0.2 Gd 0.1 Y 0.1 O 3-δ (BSCZGY) and oxide ion conducting La 0.8 Sr 0.2 Ga 0.8 Mg 0.2 O 3-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 Ωcm 2 in air at 800 °C, while BSFCu-BSCZGY/BSCZGY/BSFCu-BSCZGY symmetrical cell showed slightly lower performance (0.25 Ωcm 2 ) under the same condition. To further understand the oxygen consumption and release properties in these oxides, thermo-gravimetric analysis was also performed in air/N 2 .
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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 | 0.000 |
| 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".