Sulfur-Tolerant Anode Catalyst for Solid Oxide Fuel Cells Operating on H<sub>2</sub>S-Containing Syngas
Bibliographic record
Abstract
Strontium-doped lanthanum vanadate, La 0.7 Sr 0.3 VO 4, LSV, was prepared via a nitrate-citrate combustion method. The phase formation process of LSV was studied using thermogravimetric analysis and X-ray diffraction (XRD). A pure phase of LSV was formed during baking at 900 °C for 7 h in 10% H 2 −Ar. LSV is chemically and electrochemically stable in H 2 S-containing syngas (40% H 2, 60% CO, and 5000 ppm H 2 S). LSV is an active anode catalyst for use in solid oxide fuel cells (SOFCs), and a H 2 -air fuel cell with configuration LSV/YSZ/Pt provided maximum power density of 210 mW cm −2 at 900 °C and a current density close to 400 mA cm −2 . Impedance measurements showed that the anodic polarization resistance depended on the fuel gas, and was highest for CO and lowest for H 2 . The ohmic and polarization resistance of the cell decreased with increase in temperature.
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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 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 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".