Spinel Type Mn−Co Oxide Coated Carbon Fibers as Efficient Bifunctional Electrocatalysts for Zinc‐Air Batteries
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
Abstract Mn−Co mixed oxide nanoparticles were coated onto carbon fibers (CFs) derived from asphaltene through a facile coating process. Homemade gas diffusion layers (GDLs) were prepared with the coated CFs to be employed as air electrodes and bifunctional oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) electrocatalysts for Zn‐air batteries (ZAB). The Mn−Co oxide was identified as a cubic spinel phase (MnCo 2 O 4 ) by transmission electron microscopy (TEM) and X‐ray photoelectron spectroscopy (XPS). The composite air electrode showed excellent catalytic activity towards ORR/OER, outperforming the benchmark Pt‐RuO 2 catalyst in both half‐cell and full‐cell configurations with discharge/charge efficiencies of 63.7 % and 60.0 % at 10 and 20 mA cm −2 , respectively. After 200 cycles (100 h) at 10 mA cm −2 the final efficiency of the composite electrode (58.9 %) was still superior to that of Pt−Ru (43.2 %).
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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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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 it