{
    "title": "Formic Acid HyFuel",
    "inventor_name": "Gabor Laurenczy",
    "publication_year": 2010,
    "device_name": "Formic Acid HyFuel",
    "goal": "Safe, compact storage of hydrogen and on-demand hydrogen generation from formic acid for energy and automotive applications.",
    "problem_addressed": "Hydrogen is highly flammable and requires bulky, high-pressure cylinders for storage, making transport and vehicle integration difficult.",
    "concept_summary": "Formic acid is used as a liquid, non-flammable hydrogen carrier. A catalytic process converts formic acid back to hydrogen and carbon dioxide on demand, enabling a reversible energy storage cycle with higher volumetric energy density than compressed hydrogen.",
    "detailed_description": null,
    "category": "Chemistry & Chemical Processes",
    "principles": [
        "Catalytic reversible conversion of formic acid <-> H_2 + CO_2",
        "Chemical energy storage in a liquid carrier",
        "On-demand hydrogen release",
        "Use of inexpensive iron-based catalysts"
    ],
    "scientific_domains": [
        "Chemistry",
        "Chemical Engineering",
        "Energy Systems",
        "Materials Science"
    ],
    "mechanisms_of_action": [
        "Acid-catalyzed dehydrogenation of formic acid in aqueous solution",
        "Hydrogen gas evolution while CO_2 remains dissolved or is vented",
        "Catalyst regeneration and recycling"
    ],
    "materials": [
        "Formic acid (HCOOH)",
        "Water (aqueous medium)",
        "Iron-based catalyst (or other transition-metal complexes)",
        "Formate salts (optional)"
    ],
    "energy_sources": [
        "Chemical energy stored in formic acid"
    ],
    "inputs": [
        "Formic acid",
        "Water / aqueous solution",
        "Catalyst (iron or other transition-metal complex)",
        "CO_2 (if generated in-situ)"
    ],
    "outputs": [
        "Hydrogen gas (H_2)",
        "Carbon dioxide (CO_2)"
    ],
    "claimed_performance": "Prototype producing 2 kW of electrical power; up to 90 L H_2 /min per L of reactor volume; >60 % of the original electrical energy recovered; 53 g H per litre of formic acid (~=2x the energy density of 350 bar H_2).",
    "experimental_evidence": "A compact working prototype delivering 2 kW was built; the reaction rate of up to 90 L H_2 /min per L reactor volume is reported; two companies (Granit, Tekion) have obtained licenses to develop the technology.",
    "replication_status": "Licensed to Granit (Switzerland) and Tekion (Canada); no independent third-party replication reported in the article.",
    "keywords": [
        "formic acid",
        "hydrogen storage",
        "catalytic dehydrogenation",
        "reversible fuel",
        "energy density",
        "iron catalyst"
    ],
    "related_technologies": [
        "Hydrogen fuel cells",
        "Formic acid batteries",
        "Catalytic hydrogen generators",
        "Renewable energy storage"
    ],
    "controversy_level": "low",
    "confidence_score": 0.85,
    "practicability_score": 0.7,
    "fringe_score": 0.2,
    "evidence_strength": 0.6,
    "risk_score": 0.2,
    "trl_estimate": 5,
    "source_urls": [
        "http://www.physorg.com/news/2010-12-formic-acid.html",
        "http://www.physorg.com/print210417671.html"
    ],
    "organizations": [
        "École Polytechnique Fédérale de Lausanne (EPFL)",
        "Leibniz Institute for Catalysis",
        "Granit (Switzerland)",
        "Tekion (Canada)"
    ],
    "applications": [
        "Vehicle fuel for fuel-cell or combustion engines",
        "Stationary renewable-energy storage",
        "Portable power systems"
    ],
    "limitations": [
        "Cost of catalyst and system integration",
        "Overall round-trip efficiency limited to ~60 %",
        "Need for catalyst recycling and durability testing"
    ],
    "open_questions": [
        "Long-term stability and deactivation mechanisms of the iron catalyst",
        "Economic competitiveness versus compressed hydrogen or other carriers",
        "Scale-up of the reactor to automotive-size power levels"
    ],
    "red_flags": [
        "Cost may be a barrier to early adoption",
        "Efficiency loss during the formic-acid <-> H_2 cycle"
    ],
    "evidence_quotes": [
        "A compact working prototype producing 2 kilowatts of power has been developed, and two companies have purchased a license to develop this technology.",
        "The method can restitute more than 60% of the original electrical energy.",
        "One liter of formic acid contains more than 53 grams of hydrogen, compared to just 28 grams for the same volume of pure hydrogen pressurized to 350 bars.",
        "Through a catalytic process, the formic acid reverts to CO_2 and hydrogen, which can then be converted into electricity.",
        "The reaction is conducted at a temperature in the range of 20-200  deg C and at total gas pressures up to 1200 bar."
    ]
}