Polypyrrole and Polythiophene Modified Carbon Nanotube‐Based Cathode Catalysts for Anion Exchange Membrane Fuel Cell
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Bibliographic record
Abstract
Abstract The development of non‐precious metal cathode catalysts for anion exchange membrane fuel cells (AEMFC) is beneficial for achieving a more affordable and sustainable H 2 economy. Herein, we propose a polypyrrole, polythiophene, and multi‐walled carbon nanotube‐based composite material (PPy/PTh/MWCNT) for the electrocatalysis of oxygen reduction reaction (ORR) at the AEMFC cathode. The PPy/PTh/MWCNT catalyst has a tubular micro‐mesoporous structure with high specific surface area. The elemental composition of the catalyst's surface was studied by X‐ray photoelectron spectroscopy. In 0.1 M KOH solution, the ORR half‐wave potential is −0.16 V (SCE) and the electron transfer number is 4. In a single‐cell AEMFC, the PPy/PTh/MWCNT catalyst exhibited a maximum power density of 284 mW cm −2 , which is 86 % of the value obtained using commercial Pt/C cathode catalyst under the same testing conditions.
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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) | 0.000 | 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) | 0.000 | 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 it