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 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 | 0.001 | 0.000 |
| 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 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".