Design, Synthesis, and Characterization of Carbon‐Supported β‐Ni(OH)<sub>2</sub> Nanosheets for Miniaturized Nickel–Metal Hydride Batteries
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Bibliographic record
Abstract
Carbon‐supported β‐Ni(OH) 2 nanosheets are prepared for miniaturized nickel–metal hydride batteries. The nanomaterial consists of thin and unfolded nanosheets, which possess a hexagonal crystallographic structure. Its unique structure gives rise to a remarkable specific capability, with 81.5% of the nanomaterial being used in electrical energy storage. Repetitive charge–discharge cycling between charge and discharge cut‐off potentials ( E cut‐off,ch = 1.50 or 1.65 V and E cut‐off,dis = 1.20 V) in aqueous NaOH solution is performed to examine the nanomaterial's specific charge and stability. The results show that the specific capacity gradually decreases upon repetitive charge–discharge cycling but still maintains a significant percentage of its initial value, 54% for E cut‐off,ch = 1.50 V and 43% for E cut‐off,ch = 1.65 V. A transmission electron microscopy analysis of the nanomaterial after the charge–discharge cycling demonstrates that the β‐Ni(OH) 2 nanosheets are less‐organized and distorted. The structural and morphological changes give rise to new features in cyclic voltammetry profiles and charge–discharge curves, and a decrease in the specific capacity of the nanomaterial. The degradation of the specific capacity is attributed to a loss of the initial structure, a reduction of the number of anchoring sites, and weakening of the bond between the β‐Ni(OH) 2 nanosheets and the carbon support.
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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 | 0.000 |
| 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 it