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Record W4410794648 · doi:10.1002/eem2.70017

Hydrovoltaic Energy Harvesting From Nut Shells

2025· article· en· W4410794648 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.
fundA Canadian funder is recorded on the work.

Bibliographic record

VenueEnergy & environment materials · 2025
Typearticle
Languageen
FieldEnergy
TopicSolar-Powered Water Purification Methods
Canadian institutionsUniversity of Waterloo
FundersUniversity of WaterlooMcMaster University
KeywordsRenewable energyGenerator (circuit theory)ElectricityEnergy harvestingVoltageElectric powerProcess engineeringRectifier (neural networks)Electric generatorElectric potential energyElectrical engineeringEnvironmental scienceElectricity generationComputer scienceMaterials scienceEnergy (signal processing)Power (physics)EngineeringPhysics

Abstract

fetched live from OpenAlex

Water‐induced electric generators (WEGs) exhibit tremendous promise as sustainable energy sources harvesting electricity through the interaction between materials and water utilizing the hydrovoltaic effect, an innovative green energy harvesting method. However, existing water‐induced electric generator devices predominantly rely on inorganic materials with limited research on naturally available, bio‐based materials for hydrovoltaic energy harvesting. This study introduces a novel nutshell‐based hydrovoltaic water‐induced electric generator for the first time. This low‐cost, organic, and efficient renewable energy source can generate a voltage above 600 mV with a power density exceeding 5.96 μW cm −2 utilizing streaming and evaporation potential methodologies, which can be sustained for more than a week. Notably, after further chemical treatments and combining the physical and chemical phenomena, output voltage and maximum current density reach a record high of 1.21 V and 347.2 μA cm −2 respectively, which outperforms most inorganic and organic materials‐based water‐induced electric generators. By connecting two units in series and parallel, this eco‐friendly water‐induced electric generator can power an LCD calculator without the assistance of any rectifier. We believe that this novel nutshell‐based water‐induced electric generator provides a significant advancement in water‐induced electric generator technology by offering a sustainable solution for powering electronic devices utilizing agricultural waste.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Insufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.332
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.001
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0010.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0120.000

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.

Opus teacher head0.011
GPT teacher head0.227
Teacher spread0.216 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it