Method for making super-hydrophilic and electrically conducting surfaces for fuel cell bipolar plates
    1.
    发明授权
    Method for making super-hydrophilic and electrically conducting surfaces for fuel cell bipolar plates 有权
    制造燃料电池双极板超亲水和导电表面的方法

    公开(公告)号:US08603703B2

    公开(公告)日:2013-12-10

    申请号:US11459950

    申请日:2006-07-26

    IPC分类号: H01M4/64 H01M8/00

    摘要: A method for embedding a hydrophilic and electrically conductive layer into a flow field plate or bipolar plate for a fuel cell. In one embodiment, the layer is niobium doped titanium oxide in a powder form. The method includes mixing the powder material in a suitable solution, such as a solvent. The solution is deposited on a substrate, such as a stainless steel substrate, by any suitable process, such as brushing. The substrate is then heated so that the solvent evaporates to leave a coating of the powder material. The substrate is then positioned in a die press and is stamped to the shape of the bipolar plate, where the stamping operation embeds the powder material into an outer surface of the bipolar plate.

    摘要翻译: 一种用于将亲水和导电层嵌入到用于燃料电池的流场板或双极板中的方法。 在一个实施方案中,该层是粉末形式的掺杂铌的氧化钛。 该方法包括将粉末材料混合在合适的溶液中,例如溶剂。 通过任何合适的方法,例如刷洗,将溶液沉积在诸如不锈钢基材的基底上。 然后加热基材使得溶剂蒸发以留下粉末材料的涂层。 然后将基板定位在模压机中并冲压成双极板的形状,其中冲压操作将粉末材料嵌入双极板的外表面。

    MAKING NANOCRYSTALLINE MESOPOROUS SPHERICAL PARTICLES
    5.
    发明申请
    MAKING NANOCRYSTALLINE MESOPOROUS SPHERICAL PARTICLES 有权
    制造NANOCRYSTINE MESOPOROUS球形颗粒

    公开(公告)号:US20120001357A1

    公开(公告)日:2012-01-05

    申请号:US13226733

    申请日:2011-09-07

    IPC分类号: B29B9/12 B29B9/16

    摘要: Spherical particles of one or more elemental metals and carbon are prepared from a precursor in the form of a metal oleate. The metal oleate precursor is dispersed in a liquid vehicle and aerosol droplets of the dispersed precursor are formed in a stream of an inert gas. The aerosol droplets are heated in the stream to decompose the oleate ligand portion of the precursor and form spherical particles that have a mesoporous nanocrystalline structure. The open mesopores of the spherical particles provide a high surface area for contact with fluids in many applications. For example, the mesopores can be infiltrated with a hydrogen absorbing material, such as magnesium hydride, in order to increase the hydrogen storage capacity of the particles.

    摘要翻译: 由金属油酸盐形式的前体制备一种或多种元素金属和碳的球形颗粒。 金属油酸酯前体分散在液体载体中,并且分散的前体的气溶胶小滴以惰性气体流形成。 气溶胶液滴在流中被加热以分解前体的油酸酯配体部分并形成具有介孔纳米晶体结构的球形颗粒。 在许多应用中,球形颗粒的开放的中孔提供了与流体接触的高表面积。 例如,为了增加颗粒的储氢能力,可以用吸氢材料如氢化镁渗透介孔。

    SYNTHESIS OF RARE EARTH ELEMENT-CONTAINING ALUMINA NANOWIRES
    8.
    发明申请
    SYNTHESIS OF RARE EARTH ELEMENT-CONTAINING ALUMINA NANOWIRES 有权
    含有稀土元素的氧化铝纳米粒子的合成

    公开(公告)号:US20100130351A1

    公开(公告)日:2010-05-27

    申请号:US12324184

    申请日:2008-11-26

    IPC分类号: B01J23/10

    摘要: Rare earth element(s) doped alumina nanowires are formed by a thermal evaporation method in which vapor from aluminum powder and vapor from a rare earth element compound (such as an halide) are reacted in an oxygen-containing inert gas stream to form alumina which deposits as alumina nanowires and as a rare earth element and oxygen-containing material that deposits with and/or on the alumina nanowires. Where the RE-doped alumina nanowires are to be used as catalyst supports, a catalyst material, such as platinum, may be deposited as small particles on the nanowires.

    摘要翻译: 稀土元素掺杂的氧化铝纳米线通过热蒸发法形成,其中来自铝粉的蒸气和来自稀土元素化合物(例如卤化物)的蒸汽在含氧惰性气流中反应以形成氧化铝 作为氧化铝纳米线沉积,以及作为稀土元素和与氧化铝纳米线沉积的氧含量材料。 当RE掺杂的氧化铝纳米线用作催化剂载体时,诸如铂的催化剂材料可以作为小颗粒沉积在纳米线上。

    MESOPOROUS ELECTRICALLY CONDUCTIVE METAL OXIDE CATALYST SUPPORTS
    9.
    发明申请
    MESOPOROUS ELECTRICALLY CONDUCTIVE METAL OXIDE CATALYST SUPPORTS 有权
    MESOPOROUS电导电金属氧化物催化剂支持

    公开(公告)号:US20090312181A1

    公开(公告)日:2009-12-17

    申请号:US12412671

    申请日:2009-03-27

    摘要: A catalyst support material comprising TiO2, and optionally being doped with a transition metal element, and a method for synthesizing the same have been developed. The catalyst support material exhibits an electrical conductivity comparable to widely-used carbon materials. This is because the TiO2 present is primarily arranged in its rutile crystalline phase. Furthermore, a mesoporous morphology provides the catalyst support material with appropriate porosity and surface area properties such that it may be utilized as part of a fuel cell electrode (anode and/or cathode). The TiO2-based catalyst support material may be formed using a template method in which precursor titanium and transition metal alkoxides are hydrolyzed onto the surface of a latex template, dried, and heat treated.

    摘要翻译: 已经开发了包含TiO 2和任选地掺杂有过渡金属元素的催化剂载体材料及其合成方法。 催化剂载体材料表现出与广泛使用的碳材料相当的导电性。 这是因为存在的TiO 2主要排列在其金红石结晶相中。 此外,介孔形态为催化剂载体材料提供了适当的孔隙率和表面积性质,使得其可以用作燃料电池电极(阳极和/或阴极)的一部分。 TiO 2类催化剂载体材料可以使用其中前体钛和过渡金属醇盐水解到胶乳模板的表面上,干燥和热处理的模板方法形成。

    Ni and Ni/NiO core-shell nanoparticles
    10.
    发明授权
    Ni and Ni/NiO core-shell nanoparticles 有权
    Ni和Ni / NiO核 - 壳纳米粒子

    公开(公告)号:US07601199B2

    公开(公告)日:2009-10-13

    申请号:US11335211

    申请日:2006-01-19

    IPC分类号: B22F9/16 C01G53/04

    摘要: Glycerol is used as a solvent medium for the precipitation of a complex of nickel and glycerol material. The precipitate is separated from the liquid solvent and dried and calcined in air to produce small (nanometer size) particles characterized by a nickel core encased in a nickel oxide shell. The proportions of nickel core and nickel oxide shell can be controlled by management of the time and temperature of heating in air. Prolonged heating in air can produce nickel oxide particles, or calcining of the precipitate in nitrogen produces nickel particles.

    摘要翻译: 甘油用作沉淀镍和甘油材料复合物的溶剂介质。 将沉淀物与液体溶剂分离并干燥并在空气中煅烧以产生特征在于包裹在氧化镍壳中的镍芯的小(纳米尺寸)颗粒。 可以通过管理空气中加热的时间和温度来控制镍芯和氧化镍壳的比例。 在空气中长时间加热可产生氧化镍颗粒,或在氮气中煅烧沉淀产生镍颗粒。