Self‐Powered Mechanical Nanofluidic Generators Based on Gradient Charge‐Modified Sustainable Wood‐Derived Nanochannels
Bibliographic record
Abstract
Abstract The growing demand for self‐powered technology in portable and wearable electronics has spurred significant advancements in energy harvesting systems. However, conventional mechanical generators based on triboelectric and piezoelectric effects are limited by short discharge durations, despite achieving high output potentials. Here, a mechanical nanofluidic generator (MNG) is reported with gradient charge‐modified nanochannels, designed for mechanical energy harvesting. The MNG features highly aligned nanochannels with engineered surface charges, enabling a peak output voltage of 10.58 ± 1.29 V and a prolonged energy release time of 675.80 ± 112.08 s, with orders of magnitude longer than traditional generators that normally discharge in milliseconds to microseconds. This superior performance is attributed to the synergistic effects of gradient surface charge modification and enhanced interactions between transport ions and surface charges. This performance is attributed to the synergistic effects of surface charge gradients and strengthened ion–surface interactions, underscoring the MNG's potential for next‐generation self‐powered systems.
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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) | 0.001 | 0.001 |
| 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".