One-Step Hydrothermal Synthesis of Nickel/Cobalt Double Hydroxide Composite Containing Reduced Graphene Oxide as High Perfomance Electrode Material for Supercapacitor
Bibliographic record
Abstract
Nickel/cobalt double hydroxide composite containing reduced graphene oxide (Ni/Co-DH-RGO) with high electrochemical performances has been prepared by hydrothermal one-step method accompanied with using hexamethylene tetramine (HMT) as homogeneous precipitating agent and its hydrolysis product for reducing graphene oxide. X-ray diffraction pattern displays that Ni/Co-DH-RGO exists as a composite of α-Ni(OH) 2 -β-Co(OH) 2 and reduced graphene oxide. Infrared spectrum shows that the typical peaks of carboxyl and expoxy group in graphene oxide are significantly weakened after the hydrothermal reaction. Scanning electron microscope image shows Ni/Co-DH-RGO takes on hierarchical morphology. The as-prepared Ni/Co-DH-RGO has a specific capacitance of 2120 F g −1 at a current density of 1A g −1 and 1569.8 F g −1 at the current density of 8 A g −1 .
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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 | 0.000 | 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) | 0.001 | 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 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".