Fabrication and Characterization of LaCoO3 Nanofibers via an Electrospinning Technique
Bibliographic record
Abstract
Polyvinyl alcohol(PVA)/[La(NO3)3+Co(CH3COO)2] composite nanofibers were prepared by combination of sol-gelmethod and electrospinning technique, and crystalline LaCoO3 nanofibers were fabricated by calcination of thePVA/[La(NO3)3+Co(CH3COO)2] composite nanofibers at 600ºC for 10h. The samples were characterized by usingthermogravimetric-differential thermal analysis(TG-DTA), X-ray diffraction spectrometry(XRD), scanning electronmicroscopy(SEM) and Fourier transform infrared spectrometry(FTIR). The results show thatPVA/[La(NO3)3+Co(CH3COO)2] composite nanofibers are amorphous in structure, and pure phase LaCoO3 nanofibersare trigonal in structure with space group R3m. The surface of as-prepared composite nanofibers is smooth, and thediameter is about 200nm. The diameter of LaCoO3 nanofibers is smaller than that of the relevant composite fibers. Thesurface of the LaCoO3 nanofibers becomes coarse with the increase of calcination temperatures. The diameter ofLaCoO3 nanofibers is ca. 80nm, and the length is greater than 100?m. The mass of the sample remains constant whenthe temperature is above 500ºC, and the total mass loss percentage is 83%. Possible formation mechanism of LaCoO3nanofibers is preliminarily proposed.
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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 | 0.000 | 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 | 0.000 | 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 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".