Ti-doped Li3AIH6 with nanometer-scale crystallites has been prepared for the first time by high-energy ball milling technique. The small crystallite sizes of about 40 nm result directly from the mechanic-chemical pathway and the dispersion of a nanophase. The dehydriding/hydriding is apparently controlled by a rapid phase-separation induced by the Ti(0)/Ti(3+)/Ti(4+) defect sites that are favorable for the catalysis of dehydrogenation/hydrogenation. Such Ti-doped nanocrystals are of interest for a broad range of applications in areas such as direct hydrogen fuel cell vehicles not only due to their high hydrogen capacity but also for their reversible hydrogen storage.


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    Title :

    Nanocrystalline Ti-doped Li3AlH6 as a reversible hydrogen storage material


    Additional title:

    Nanokristallines Ti-dotiertes Li3AlH6 als Werkstoff zur reversiblen Wasserstoff-Speicherung


    Contributors:
    Chen, J. (author) / Kuriyama, N. (author) / Takeshita, H.T. (author) / Sakai, T. (author)

    Published in:

    Publication date :

    2001


    Size :

    4 Seiten, 5 Bilder, 28 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English





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