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    Making metal and bimetal nanostructures with controlled morphology
    2.
    发明授权
    Making metal and bimetal nanostructures with controlled morphology 有权
    制作具有受控形态的金属和双金属纳米结构

    公开(公告)号：US09539643B2

    公开(公告)日：2017-01-10

    申请号：US12704786

    申请日：2010-02-12

    申请人： Xueliang Sun ,  Gaixia Zhang ,  Mei Cai ,  Shuhui Sun ,  Ruying Li

    发明人： Xueliang Sun ,  Gaixia Zhang ,  Mei Cai ,  Shuhui Sun ,  Ruying Li

    IPC分类号： B22F9/16 ,  B22F9/24 ,  B22F1/00

    CPC分类号： B22F9/24 ,  B22F1/0018 ,  B22F1/0025 ,  B22F2001/0029 ,  B22F2001/0037

    摘要： A method of making metal nanostructures having a nanometer size in at least one dimension includes preparing an aqueous solution comprising a cation of a first metal and an anion, and mixing commercial elemental powder particles of an elemental second metal having a greater reduction potential than the first metal with the aqueous solution in an amount that reacts and dissolves all of the second metal and precipitates the first metal as metal nanostructures. The temperature and concentration of the aqueous solution and the selection of the anions and the second metal are chosen to produce metal nanostructures of a desired shape, for example ribbons, wires, flowers, rods, spheres, hollow spheres, scrolls, tubes, sheets, hexagonal sheets, rice, cones, dendrites, or particles.

    摘要翻译： 制备在至少一个维度上具有纳米尺寸的金属纳米结构的方法包括制备包含第一金属和阴离子的阳离子的水溶液，并混合具有比第一金属和阴离子更大的还原电位的元素第二金属的商业元素粉末颗粒 金属与水溶液反应并溶解所有第二金属并沉淀第一金属作为金属纳米结构。 选择水溶液的温度和浓度以及阴离子和第二金属的选择以产生所需形状的金属纳米结构，例如带，线，花，棒，球，空心球，涡卷，管，片， 六角片，米，锥，树枝状或颗粒。

    Making metal and bimetal nanostructures with controlled morphology
    3.
    发明申请
    Making metal and bimetal nanostructures with controlled morphology 有权
    制作具有受控形态的金属和双金属纳米结构

    公开(公告)号：US20110197710A1

    公开(公告)日：2011-08-18

    申请号：US12704786

    申请日：2010-02-12

    申请人： Xueliang Sun ,  Gaixia Zhang ,  Mei Cai ,  Shuhui Sun ,  Ruying Li

    发明人： Xueliang Sun ,  Gaixia Zhang ,  Mei Cai ,  Shuhui Sun ,  Ruying Li

    IPC分类号： B22F9/16

    CPC分类号： B22F9/24 ,  B22F1/0018 ,  B22F1/0025 ,  B22F2001/0029 ,  B22F2001/0037

    摘要： A method of making metal nanostructures having a nanometer size in at least one dimension includes preparing an aqueous solution comprising a cation of a first metal and an anion, and mixing commercial elemental powder particles of an elemental second metal having a greater reduction potential than the first metal with the aqueous solution in an amount that reacts and dissolves all of the second metal and precipitates the first metal as metal nanostructures. The temperature and concentration of the aqueous solution and the selection of the anions and the second metal are chosen to produce metal nanostructures of a desired shape, for example ribbons, wires, flowers, rods, spheres, hollow spheres, scrolls, tubes, sheets, hexagonal sheets, rice, cones, dendrites, or particles.

    摘要翻译： 制备在至少一个维度上具有纳米尺寸的金属纳米结构的方法包括制备包含第一金属和阴离子的阳离子的水溶液，并混合具有比第一金属和阴离子更大的还原电位的元素第二金属的商业元素粉末颗粒 金属与水溶液反应并溶解所有第二金属并沉淀第一金属作为金属纳米结构。 选择水溶液的温度和浓度以及阴离子和第二金属的选择以产生所需形状的金属纳米结构，例如带，线，花，棒，球，空心球，涡卷，管，片， 六角片，米，锥，树枝状或颗粒。

    Synthesis of rare earth element-containing alumina nanowires
    4.
    发明授权
    Synthesis of rare earth element-containing alumina nanowires 有权
    含稀土元素氧化铝纳米线的合成

    公开(公告)号：US08043598B2

    公开(公告)日：2011-10-25

    申请号：US12324184

    申请日：2008-11-26

    申请人： Mei Cai ,  Xueliang Sun ,  Yong Zhang ,  Ruying Li

    发明人： Mei Cai ,  Xueliang Sun ,  Yong Zhang ,  Ruying Li

    IPC分类号： C01F7/02

    CPC分类号： C01F7/422 ,  B82Y30/00 ,  C01F17/0043 ,  C01P2002/52 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2004/16 ,  Y10S977/762 ,  Y10T428/12014

    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。

    Microfiber supported metal silicide nanowires
    5.
    发明授权
    Microfiber supported metal silicide nanowires 有权
    超细纤维支撑金属硅化物纳米线

    公开(公告)号：US08591990B2

    公开(公告)日：2013-11-26

    申请号：US13071552

    申请日：2011-03-25

    申请人： Mei Cai ,  Xueliang Sun ,  Yong Zhang ,  Mohammad Norouzi Banis ,  Ruying Li

    发明人： Mei Cai ,  Xueliang Sun ,  Yong Zhang ,  Mohammad Norouzi Banis ,  Ruying Li

    IPC分类号： B05D7/00 ,  B82Y40/00 ,  C30B29/06 ,  C30B29/62

    CPC分类号： B82Y40/00 ,  B82Y30/00 ,  C04B35/62272 ,  C04B35/62857 ,  C04B35/62876 ,  C04B35/62894 ,  C04B35/62897 ,  C04B2235/46 ,  C04B2235/5248 ,  C04B2235/5256 ,  C04B2235/526 ,  C04B2235/5264 ,  C30B11/12 ,  C30B29/10 ,  C30B29/60

    摘要： An arrangement of elongated nanowires that include titanium silicide or tungsten silicide may be grown on the exterior surfaces of many individual electrically conductive microfibers of much larger diameter. Each of the nanowires is structurally defined by an elongated, centralized titanium silicide or tungsten silicide nanocore that terminates in a distally spaced gold particle and which is co-axially surrounded by a removable amorphous nanoshell. A gold-directed catalytic growth mechanism initiated during a low pressure chemical vapor deposition process is used to grow the nanowires uniformly along the entire length and circumference of the electrically conductive microfibers where growth is intended. The titanium silicide- or tungsten silicide-based nanowires can be used in a variety electrical, electrochemical, and semiconductor applications.

    摘要翻译： 包括硅化钛或硅化钨的细长纳米线的布置可以在许多单独的导电微纤维的外表面上生长得更大直径。 每个纳米线在结构上由细长的集中的硅化钛或硅化钨纳米孔限定，其终止于远离间隔的金颗粒并且由可移除的非晶纳米壳同轴地包围。 使用在低压化学气相沉积工艺期间引发的金导催化生长机制，以沿着预期生长的导电微纤维的整个长度和周长均匀地生长纳米线。 硅化钛或硅化钨基纳米线可用于各种电气，电化学和半导体应用。

    One-dimensional metal and metal oxide nanostructures
    7.
    发明授权
    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：US08034408B2

    公开(公告)日：2011-10-11

    申请号：US11850860

    申请日：2007-09-06

    申请人： Xueliang Sun ,  Ruying Li ,  Yuqin Zhou ,  Mei Cai ,  Hao Liu

    发明人： Xueliang Sun ,  Ruying Li ,  Yuqin Zhou ,  Mei Cai ,  Hao Liu

    IPC分类号： C23C16/00 ,  B05D7/00

    CPC分类号： C01G1/02 ,  B82Y30/00 ,  C01G19/02 ,  C01G23/04 ,  C01G23/043 ,  C01G41/02 ,  C01P2002/52 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2004/16 ,  C01P2004/17 ,  C01P2004/64 ,  H01G9/2031

    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。

    Nanowire supported catalysts for fuel cell electrodes
    9.
    发明授权
    Nanowire supported catalysts for fuel cell electrodes 有权
    纳米线支持燃料电池电极的催化剂

    公开(公告)号：US08409659B2

    公开(公告)日：2013-04-02

    申请号：US11938843

    申请日：2007-11-13

    申请人： Xueliang Sun ,  Madhu S. Saha ,  Ruying Li ,  Mei Cai

    发明人： Xueliang Sun ,  Madhu S. Saha ,  Ruying Li ,  Mei Cai

    IPC分类号： B05D5/12 ,  C23C16/00 ,  H01M4/36 ,  H01M8/00 ,  H01M4/88

    CPC分类号： H01M4/92 ,  H01M4/925 ,  H01M4/926 ,  H01M2008/1095

    摘要： Metal oxide nanowires and carbon-coated metal nanowires are effective as supports for particles of an expensive catalyst material, such as platinum metal group catalyst. Such supported catalysts are useful when included in an electrode on, for example, a proton exchange membrane in a hydrogen/oxygen fuel cell. For example, tin oxide nanowires are formed on carbon fibers of carbon paper and platinum nanoparticles are deposited on the tin oxide nanowires. The nanowires provide good surfaces for effective utilization of the platinum material.

    摘要翻译： 金属氧化物纳米线和碳涂覆的金属纳米线作为用于诸如铂金属基催化剂的昂贵催化剂材料的颗粒的载体是有效的。 当包含在例如氢/氧燃料电池中的质子交换膜上的电极中时，这种负载型催化剂是有用的。 例如，在碳纸的碳纤维上形成氧化锡纳米线，并且将铂纳米颗粒沉积在氧化锡纳米线上。 纳米线提供了有效利用铂材料的良好表面。