schema · 12 fields
A database of hydrogen prodcution
Automate extraction for "A database of hydrogen prodcution ". Extract structured, evidence-grounded data points directly from hundreds of papers with source page coordinates.
Schema Field Definitions (12)
| Field Name | Data Type | Description |
|---|---|---|
| production_method | string | The general pathway or method used for hydrogen production (e.g., photocatalysis, electrocatalysis, photoelectrocatalysis, dark fermentation, steam reforming, or biomass gasification). Return null if not specified. |
| catalyst_or_biocatalyst_name | string | The chemical formulation, material name, or microbial strain/species performing or catalyzing the hydrogen generation. Exclude baseline or benchmark control materials from literature. |
| feedstock_or_electrolyte | string | The chemical substrate, sacrificial agent, or electrolyte used in the reaction system (e.g., water, methanol solution, Na2S/Na2SO3, glucose, wastewater, 1.0 M KOH). |
| light_source_type | string | For photochemical or photoelectrochemical processes, the type and spectrum of illumination used (e.g., 300 W Xenon lamp, AM 1.5G simulated sunlight, visible light cut-off 420 nm). Return null if the process is non-photochemical. |
| reaction_temperature | number | The numerical temperature at which the hydrogen production reaction was conducted. |
| reaction_temperature_unit | string | The unit associated with the reaction temperature (e.g., °C, K), exactly as reported in the paper. |
| hydrogen_production_rate | number | The numerical rate of hydrogen evolution or generation measured in the experimental study. Exclude theoretical yields or values cited from previous literature. |
| hydrogen_production_rate_unit | string | The unit associated with the hydrogen production rate (e.g., μmol h^-1 g^-1, mmol g^-1 h^-1, mL min^-1), exactly as reported in the paper. |
| faradaic_efficiency | number | The Faradaic efficiency of hydrogen generation for electrochemical or photoelectrochemical systems as a numerical magnitude. Return null if not applicable or not reported. |
| faradaic_efficiency_unit | string | The unit associated with the Faradaic efficiency (e.g., %), exactly as reported in the paper. |
| energy_conversion_efficiency | number | The overall energy conversion efficiency, such as solar-to-hydrogen (STH) efficiency or thermal efficiency, as a numerical magnitude. Return null if not measured. |
| energy_conversion_efficiency_unit | string | The unit associated with the energy conversion efficiency (e.g., %), exactly as reported in the paper. |
Data Verification Status Taxonomy
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Extracted
Value located and extracted from the full-text PDF by the Kateeb engine.
Model-Agreed
An independent second model produced a compatible value during automated second-pass review.
Human-Reviewed
A named researcher audited the value against the visual page coordinates.
Benchmark-Validated
Performance evaluated against a standardized, published evaluation protocol.
Replicated
An independent external research group reproduced the extraction and experimental result.