Stabilization of Platinum Anode Catalyst in a H[sub 2]S-O[sub 2] Solid Oxide Fuel Cell with an Intermediate TiO[sub 2] Layer
Bibliographic record
Abstract
The performance of supported platinum as an anode catalyst in a hydrogen sulfide solid oxide fuel cell with yttria-stabilized zirconia (YSZ) as the electrolyte has been examined in the temperature range of 700-900°C. The highest current density achieved at 800°C was 100 mA/cm2 and the highest power density was 15.4 mW/cm2, when operated with 5% feed. Increasing the concentration of in the anode feed did not improve the performance of the cell, due to corruption of the platinum anode; the reversible formation and decomposition of PtS on the platinum-YSZ interface led to instability of the electrochemical interface of the Pt catalyst with the YSZ electrolyte. The membrane structure and performance were both stabilized by interposing a thin layer of between the Pt anode and YSZ electrolyte. The stabilized open-circuit voltage value depended on flow rates of the anode and cathode feeding gases. This behavior is attributed to the crossover of reactants, which change the partial pressures of product and © 2002 The Electrochemical Society. All rights reserved.
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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) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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".