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Power from formic acid

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  • Power from formic acid

    07-May-2008
    Source:catalysis.de

    Room temperature is warm enough: hydrogen for fuel cells from formic acid

    O



    The researchers from Rostock have now developed a feasible process for the on-demand release of hydrogen; they produce hydrogen from formic acid (HCO2H). In the presence of an amine (e.g. N,N-dimethylhexylamine) and with a suitable catalyst (e.g. the commercially available ruthenium phosphine complex [RuCl2(PPH3)2]), formic acid is selectively converted into carbon dioxide and hydrogen at room temperature. A simple activated charcoal filter is enough to purify the hydrogen gas for use in a fuel cell. The use of formic acid for “hydrogen storage” allows the advantages of established hydrogen/oxygen fuel cell technology to be combined with those of liquid fuels. Formic acid is nontoxic and easy to store. Because formic acid can be generated catalytically from CO2 and biomass-derived hydrogen, the cycle is CO2 neutral in principle.

    Will we be replacing gasoline with formic acid in the future" It is not inconceivable, but initial applications requiring smaller amounts of energy are more probable. “For the use of fuel cells in portable electrical devices,” says Beller, “this nascent formic acid technology opens up new possibilities in the short term.”
    http://www.catalysis.de/Beller-Matthias.239.0.html
    Title: Controlled generation of hydrogen from formic acid amine adducts at room temperature and application in H2/O2 fuel cells
    Angewandte Chemie International Edition 2008, 47, No. 21, 3962–3965, doi: 10.1002/anie.200705972

    http://www.fuelcellsworks.com/Supppage8770.html
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