X-ray Absorption Spectroscopy and Powder X-ray Diffraction Studies on Green Energy Materials
Bibliographic record
Abstract
A world relying on green energy systems is on the horizon. This study focuses on the improvement of novel material components for two green energy solutions: Li-ion battery cathodes and a hydrogen storage system for hydrogen fuel cells. Li2Fe0.5Mn0.5SiO4 has been proposed as a potential new Li-ion battery cathode material due to its inexpensive cost, safety, and high theoretical capacity, however, structural changes during charge and discharge have been seen to affect its longevity. Additionally, a promising hydrogen fuel cell material of palladium (Pd) nanoparticles on a reduced graphene oxide (rGO) substrate have shown to be a good material for hydrogen storage. Interestingly, doping the rGO with a dopant has altered the Pd nanoparticle formation, increasing capacity (3-fold in the case of a boron dopant). Therefore, synchrotron-based X-ray absorption spectroscopy and powder X-ray diffraction were used to understand the structural properties of these materials to further improve them.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.002 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.004 | 0.002 |
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 source (direct Gemma or distilled Codex), 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".