Ni Modified WC-Based Anode Materials for Direct Methane Solid Oxide Fuel Cells
Bibliographic record
Abstract
Single cells based on Ni-CeO2-WC-YSZ anodes were investigated as an alternative material for direct methane solid oxide fuel cells. First, a YSZ electrolyte-based cell with porous YSZ as the support for electrode materials on both sides was prepared. Then electrocatalyst materials were incorporated into the porous YSZ: the anode was infiltrated with WC (25 vol.%), Ni (5 wt%) and ceria (5 wt%) precursors; and the cathode with LSM (20 vol.%) precursor. A Ni-CeO2-WC-YSZ symmetrical cell study showed that the Ni modified electrode performed stably with humidified methane at 850°C for a period of 48 hours under open circuit condition; no carbon formation was observed either with in-situ impedance spectroscopy or ex-situ scanning electron microscopy. Furthermore, the fuel cell results revealed that not only does the anode operate steadily with a reasonable performance on methane fuel, but the stability of the carbide phase is well maintained. The cell also successfully survived an oxidation-reduction-recarburization cycle. It was demonstrated that with a proper cell configuration, the structural integrity can be protected. These results suggest that a Ni modified anode is compatible with methane fuel, with reasonable and stable performance.
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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 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| 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".