Controllable etching construction of nickel-based Prussian blue analog nanocages for stabilized energy storage in aqueous nickel-zinc batteries
Bibliographic record
Abstract
Aqueous nickel-zinc batteries (NZBs) are well-suited for large-scale energy storage owing to their safety and low cost. Yet, their nickel-based cathodes encounter issues like particle fragmentation caused by lattice stress accumulation and irreversible phase changes during charge-discharge cycles. In this study, nickel-cobalt Prussian blue analog nanocages (NC-NiCo-PBA) with an octahedral cavity structure were successfully prepared using ammonia complex etching. Structural characterization revealed that the nanocage retained an intact PBA skeleton, with the specific surface area enhanced to 151.38 m 2 /g, which was a 5.2% increase over the original solid particles. The octahedral hollow cavity structure significantly reduces ion transfer distance and alleviates volume strain, thereby markedly improving electrochemical performance. This study provides a new approach for the structural design of PBA-based cathode materials and validates the critical role of hollow nanostructures in enhancing the energy storage performance of aqueous batteries.
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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) | 0.001 | 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 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".