MAKING NANOCRYSTALLINE MESOPOROUS SPHERICAL PARTICLES
    22.
    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
    25.
    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
    26.
    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
    27.
    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。

    ONE-DIMENSIONAL METAL AND METAL OXIDE NANOSTRUCTURES
    28.
    发明申请
    ONE-DIMENSIONAL METAL AND METAL OXIDE NANOSTRUCTURES 有权
    一维金属和金属氧化物纳米结构

    公开(公告)号:US20080292789A1

    公开(公告)日:2008-11-27

    申请号:US11850860

    申请日:2007-09-06

    IPC分类号: C23C16/40 B05D7/14 B05D7/00

    摘要: Metal powder (such as tin, titanium, or tungsten powder) is heated in a flowing stream of an inert gas, such as argon, containing a small abundance of oxygen at a temperature to produce metal vapor. The metal reacts with the oxygen to form and deposit one-dimensional nanostructures of oxygen-containing metal on the metal powder (in the case of Ti and W) or on a suitable nearby substrate in the case of the lower melting tin. The metal oxides are not necessarily stoichiometric compounds. Water may be introduced into the flowing inert gas to increase or control the oxygen content. Sulfur vapor or a carbon source may be introduced to dope the nanostructures with sulfur or carbon. Reaction conditions may be modified to vary the shapes of the one-dimensional nanostructures.

    摘要翻译: 金属粉末(例如锡,钛或钨粉末)在惰性气体(例如氩气)的流中在一定温度下加热,其含有少量氧气,以产生金属蒸汽。 在低熔点锡的情况下,金属与氧反应形成并沉积在金属粉末(在Ti和W的情况下)上的含氧金属的一维纳米结构或沉积在合适的附近的基底上。 金属氧化物不一定是化学计量的化合物。 可以将水引入流动的惰性气体中以增加或控制氧含量。 可以引入硫蒸气或碳源以用硫或碳掺杂纳米结构。 可以修改反应条件以改变一维纳米结构的形状。

    Oxidation resistant electrode for fuel cell
    29.
    发明申请
    Oxidation resistant electrode for fuel cell 审中-公开
    燃料电池用耐氧化电极

    公开(公告)号:US20060188775A1

    公开(公告)日:2006-08-24

    申请号:US11354213

    申请日:2006-02-14

    IPC分类号: H01M4/96 H01M8/10 H01M4/88

    摘要: An oxygen reducing electrode for a fuel cell comprises carbon particles as support for catalyst particles. The carbon particles are coated with smaller particles of a metal oxide and/or metal phosphate (for example, TiO2 particles) to impede destructive oxidation (corrosion) of the carbon particles while permitting suitable electrical conductivity between the carbon particles. The catalyst is carried on the smaller particle-coated carbon particles. Titanium dioxide particles can be dispersed on carbon particles suspended in a liquid medium by ultrasonic decomposition of a suitable titanium precursor compound.

    摘要翻译: 用于燃料电池的氧还原电极包括作为催化剂颗粒的载体的碳颗粒。 碳颗粒涂覆有更小的金属氧化物和/或金属磷酸盐颗粒(例如TiO 2 2颗粒)以阻止碳颗粒的破坏性氧化(腐蚀),同时允许碳颗粒之间的适当导电性 碳颗粒。 催化剂承载在较小颗粒包覆的碳颗粒上。 二氧化钛颗粒可以通过合适的钛前体化合物的超声分解而分散在悬浮在液体介质中的碳颗粒上。

    Thermoelectric catalytic converter temperature control
    30.
    发明授权
    Thermoelectric catalytic converter temperature control 有权
    热电催化转化器温控

    公开(公告)号:US07051522B2

    公开(公告)日:2006-05-30

    申请号:US10861326

    申请日:2004-06-04

    IPC分类号: F01N3/02

    摘要: A method for controlling temperature of a catalytic converter in an automobile exhaust system is disclosed. The method includes establishing a reference temperature for the catalytic converter, distributing a stream of exhaust gases through the catalytic converter, obtaining a measured temperature of the catalytic converter and converting thermal energy from the stream of exhaust gases into electrical energy when the measured temperature exceeds the reference temperature. An apparatus for controlling temperature of a catalytic converter in an automobile exhaust system is also disclosed.

    摘要翻译: 公开了一种用于控制汽车排气系统中的催化转化器的温度的方法。 该方法包括建立催化转化器的参考温度,通过催化转化器分配废气流,获得催化转化器的测量温度,并且当测量的温度超过 参考温度。 还公开了一种用于控制汽车排气系统中的催化转化器的温度的装置。