Sulfur Tolerance of La<sub>0.3</sub>M<sub>0.7</sub>Fe<sub>0.7</sub>Cr<sub>0.3</sub>O<sub>3</sub> <sub>-δ</sub> (M= Sr, Ca) Solid Oxide Fuel Cell Anodes
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
Symmetrical full cells, based on La 0.3 M 0.7 Fe 0.7 Cr 0.3 O 3- δ (M = Sr, Ca) perovskite oxide electrodes, were constructed, using a Yttria-stabilized zirconia (YSZ) electrolyte with a Samaria-doped ceria (SDC) buffer layer, and then tested in a range of fuel environments at 800 o C. It is demonstrated that the Ca analog (La 0.3 Ca 0.7 Fe 0.7 Cr 0.3 O 3-δ -LCFCr) is an equally good fuel electrode (anode) and air electrode (cathode) as the Sr member of this family (LSFCr), exhibiting very good electrochemical performance in H 2 , CO and H 2 +CO atmospheres. LCFCr and LSFCr anodes were also evaluated in the presence of 9 ppm H 2 S exposures, showing a small, but reproducible and reversible, decrease in polarization resistance (Rp). Studies at cell polarizations of -100 and -300 mV from the open circuit full cell voltage showed a ca. 2-4 % increase in current density in the presence of 9 ppm H 2 S + 30 % H 2 , with the cell recovering fully when H 2 S was removed.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.005 | 0.001 |
| Meta-epidemiology (narrow) | 0.005 | 0.006 |
| Meta-epidemiology (broad) | 0.005 | 0.003 |
| Bibliometrics | 0.002 | 0.005 |
| Science and technology studies | 0.003 | 0.004 |
| Scholarly communication | 0.001 | 0.006 |
| Open science | 0.005 | 0.001 |
| Research integrity | 0.003 | 0.004 |
| Insufficient payload (model declined to judge) | 0.000 | 0.005 |
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 it