The method of generation of hydrogen gas from water using chemical reactions is not new or original, e.g. there are several well-known systems under investigation and commercial development, including sodium borohydride or other sodium compounds. The novelty of the proposed technology is that it uses a low-cost precursor aluminum at neutral (pH = 7) or close to neutral conditions, thus making it environmentally friendly and completely recyclable. The key discovery made by Dr. Chaklader is that passivation of Al in contact with some oxides, in particular aluminum oxide, can be prevented even in neutral conditions in water. Thus, the 'corrosion' reaction proceeds spontaneously, with formation of hydrogen and aluminum hydroxide. This process can be used for generation of hydrogen-on-demand, e.g. to supply on-board fuel cell, without a need for pressurized container. The authors have demonstrated that in the Al - Al2O3 system with 30 weight-% of Al2O3, about 1 liter of H2 can be generated out of 1 gram of Al. The effects of temperature, concentration of the oxide phase, particle size of Al and pH of water was studied for


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    Titel :

    Hydrogen generation through aluminum-assisted water split reaction


    Beteiligte:
    Chaklader, A.C.D. (Autor:in) / Troczynski, T. (Autor:in) / Bapooji, V. (Autor:in) / Chaskar, V. (Autor:in)


    Erscheinungsdatum :

    2003


    Format / Umfang :

    6 Seiten, 4 Bilder, 12 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch






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