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    Nanocomposites with activated interfaces prepared by mechanical grinding of magnesium hydrides and use for storing hydrogen
    2.
    发明授权
    Nanocomposites with activated interfaces prepared by mechanical grinding of magnesium hydrides and use for storing hydrogen 失效
    具有通过机械研磨氢氧化镁制备并用于储存氢的活化界面的纳米复合材料

    公开(公告)号：US07201789B1

    公开(公告)日：2007-04-10

    申请号：US09529910

    申请日：1998-10-21

    申请人： Robert Schulz ,  Guoxiang Liang ,  Guy Lalande ,  Jacques Huot ,  Sabin Boily ,  André Van Neste

    发明人： Robert Schulz ,  Guoxiang Liang ,  Guy Lalande ,  Jacques Huot ,  Sabin Boily ,  André Van Neste

    IPC分类号： C01B6/24

    CPC分类号： B22F9/023 ,  B22F2998/00 ,  B22F2999/00 ,  C01B3/0031 ,  C01B3/0047 ,  C01B3/0078 ,  H01M4/383 ,  H01M8/04029 ,  H01M8/065 ,  H01M10/345 ,  H01M2004/021 ,  Y02E60/327 ,  B22F1/0018 ,  B22F1/0003 ,  B22F9/04

    摘要： The invention concerns a method for preparing a nanocomposite based on magnesium and another element or compound known to absorb hydrogen and hardly miscible when ground with magnesium or its hydride, such as vanadium, titanium or niobium. The method is characterised in that it consists in submitting magnesium or a compound based on magnesium known to absorb hydrogen to hydrogenation to obtain the corresponding hydride in powder form. Said resulting powder hydride is then mixed with the other element or compound or a hydride of said other element or compound and the resulting mixture is subjected to intense mechanical grinding until the corresponding nanocomposite is obtained in the form of a hydride. Finally, if necessary, the resulting nanocomposite is subjected to hydrogen desorption. The invention also concerns the resulting nanocomposite based on Mg, which has the advantage of being inexpensive and highly efficient for storing hydrogen owing to its microstructure (that is owing to the nature of its interfaces and the spatial distribution of its constituents) which is extremely fine and provides an excellent synergistic effect between Mg and the other element or compound.

    摘要翻译： 本发明涉及一种制备基于镁的纳米复合材料的方法，以及当用镁或其氢化物如钒，钛或铌研磨时已知可吸收氢并且几乎不混溶的另一种元素或化合物。 该方法的特征在于它包括将镁或基于已知吸收氢气的镁化合物进行氢化以获得粉末形式的相应氢化物。 然后将所得的粉末氢化物与另一种元素或化合物或所述其它元素或化合物的氢化物混合，并将所得混合物进行强力机械研磨，直到以氢化物的形式获得相应的纳米复合材料。 最后，如果需要，将所得的纳米复合材料进行氢解吸。 本发明还涉及所得到的基于Mg的纳米复合材料，其具有由于其微结构（即由于其界面的性质及其组分的空间分布）而非常廉价且高效地储存氢的优点） 并且在Mg与其它元素或化合物之间提供优异的协同效应。

    Process for the preparation of a supported catalyst
    3.
    发明授权
    Process for the preparation of a supported catalyst 失效
    负载型催化剂的制备方法

    公开(公告)号：US06239065B1

    公开(公告)日：2001-05-29

    申请号：US09218138

    申请日：1998-12-22

    申请人： Robert Schulz ,  Guy Lalande ,  Marie-Chantal Denis ,  Jean-Pol Dödelet

    发明人： Robert Schulz ,  Guy Lalande ,  Marie-Chantal Denis ,  Jean-Pol Dödelet

    IPC分类号： B01J2338

    CPC分类号： B22F9/16 ,  B22F2009/041 ,  B22F2998/00 ,  B22F2998/10 ,  B22F2999/00 ,  B22F1/0018 ,  C22C32/00 ,  B22F1/0003 ,  B22F9/04 ,  B22F2202/05 ,  B22F2202/01

    摘要： The invention is concerned with a process for the preparation of a supported catalyst having a nanocrystalline structure and a surface area preferably higher than 2 m2/g. The process comprises preparing by mechanical grinding a nanocrystalline material consisting of a metastable composite or alloy of at least two different elements or compounds containing at least one catalytic species and subjecting the nanocrystalline material to leaching with a leaching solution in order to eliminate totally or partially at least of one of the two elements or compounds, other than the at least one catalytic species. At least one further element or compound that is non-leachable and that acts as a support for the at least one catalytic species is added to the material during the grinding step or to the leaching solution during the leaching step.

    摘要翻译： 本发明涉及制备具有纳米晶体结构并且表面积优选高于2m 2 / g的负载型催化剂的方法。 该方法包括通过机械研磨由包含至少两种不同元素的亚稳态复合材料或含有至少一种催化物质的化合物的纳米晶体材料制备，并使纳米晶体材料用浸出溶液浸出以便完全或部分地 所述两种元素或化合物中的至少一种除了所述至少一种催化物质以外。 在研磨步骤期间将至少一种不可浸出的元素或化合物用作至少一种催化物质的载体，或者在浸出步骤期间被加入到浸出溶液中。