利索-全球专利检索

  1. Login
  2. Sign Up

Search Results

28 records (took 0.061 seconds)

    Method and apparatus for forming polycrystalline particles
    1.
    发明授权
    Method and apparatus for forming polycrystalline particles 有权
    用于形成多晶颗粒的方法和装置

    公开(公告)号：US06245280B1

    公开(公告)日：2001-06-12

    申请号：US09337289

    申请日：1999-06-21

    Applicant: Zhaosheng Tan ,  Krishna Sapru

    Inventor： Zhaosheng Tan ,  Krishna Sapru

    IPC: H05B600

    CPC classification number: H01J37/32055 ,  C23C14/325 ,  H01J37/32614 ,  H05B7/185

    Abstract: A method and apparatus for forming polycrystalline particles by gas phase condensation employing arc plasma evaporation. The disclosed method and apparatus may be employed to form polycrystalline particles from high-melting temperature, low evaporation pressure materials such as transition metals. Arc discharge is sustained by the evaporated species, therefore, there is no need for a plasma sustaining gas. Evaporation may be sustained from either the cathode or anode. A reaction gas may be provided to form products with the evaporated species.

    Abstract translation: 一种通过使用电弧等离子体蒸发的气相凝结来形成多晶颗粒的方法和装置。 所公开的方法和装置可用于从高熔点温度，低蒸发压力材料如过渡金属形成多晶颗粒。 电弧放电由蒸发的物质维持，因此，不需要等离子体维持气体。 蒸发可以从阴极或阳极维持。 可以提供反应气体以形成具有蒸发物质的产物。

    Magnesium mechanical alloys for thermal hydrogen storage
    2.
    发明授权
    Magnesium mechanical alloys for thermal hydrogen storage 失效
    用于热氢储存的镁机械合金

    公开(公告)号：US6103024A

    公开(公告)日：2000-08-15

    申请号：US066247

    申请日：1998-04-24

    Applicant: Krishna Sapru ,  Lu Ming ,  Ned T. Stetson

    Inventor： Krishna Sapru ,  Lu Ming ,  Ned T. Stetson

    IPC: B22F1/00 ,  B22F9/00 ,  C01B3/00 ,  C22C1/04 ,  C22C23/00 ,  C22C45/00 ,  H01M4/38 ,  H01M8/06

    CPC classification number: C01B3/0078 ,  B22F9/005 ,  C01B3/0031 ,  C01B3/0057 ,  C22C1/0408 ,  C22C23/00 ,  H01M4/383 ,  H01M8/065 ,  B22F2009/041 ,  B22F2009/043 ,  B22F2998/00 ,  Y02E60/327 ,  Y02P20/129 ,  Y10S420/90

    Abstract: A mechanically alloyed hydrogen storage material having 75-95 atomic percent Mg, 5-15 atomic percent Ni, 0.5-6 atomic percent Mo, and at least one additional element selected from the group consisting of Al, C, Ca, Ce, Co, Cr, Cu, Dy, Fe, La, Mn, Nd, Si, Ti, V, and Zr, preferably between 1-15 atomic %. The mechanically alloyed hydrogen storage preferably contains from 3-15 atomic % C and at least one other element selected from the group consisting of Al, Ca, Ce, Cu, Dy, Fe, La, Mn, and Nd. The hydrogen storage materials are created by mechanical alloying in a milling apparatus under an inert atmosphere, such as argon, or a mixed atmosphere, such as argon and hydrogen. The speed and length of the milling are varied.

    Abstract translation: 具有75-95原子％的Mg，5-15原子％的Ni，0.5-6原子％的Mo和至少一种选自Al，C，Ca，Ce，Co的另外的元素的机械合金化的储氢材料， Cr，Cu，Dy，Fe，La，Mn，Nd，Si，Ti，V和Zr，优选为1-15原子％。 机械合金化氢储存层优选含有3-15原子％C和选自Al，Ca，Ce，Cu，Dy，Fe，La，Mn和Nd中的至少一种其它元素。 储氢材料是通过在惰性气氛（如氩气）或混合气氛（如氩气和氢气）下在研磨设备中机械合金化而产生的。 铣削的速度和长度是变化的。

    Catalytic electrolytic electrode
    3.
    发明授权
    Catalytic electrolytic electrode 失效
    催化电解电极

    公开(公告)号：US4544473A

    公开(公告)日：1985-10-01

    申请号：US148915

    申请日：1980-05-12

    Applicant: Stanford R. Ovshinsky ,  Krishna Sapru

    Inventor： Stanford R. Ovshinsky ,  Krishna Sapru

    IPC: B01J23/20 ,  B01J23/24 ,  B01J23/36 ,  B01J23/40 ,  B01J23/74 ,  B01J23/755 ,  B01J23/84 ,  B01J23/85 ,  B01J35/02 ,  B01J37/02 ,  B01J37/06 ,  C22C9/00 ,  C22C14/00 ,  C22C19/00 ,  C22C27/04 ,  C22C45/00 ,  C22C45/04 ,  C22F1/00 ,  C25B11/04 ,  C25B11/06 ,  C25B11/10 ,  H01M4/86 ,  H01M4/90 ,  H01M4/98

    CPC classification number: B01J37/06 ,  B01J23/84 ,  C25B11/04 ,  H01M4/86 ,  H01M4/90 ,  H01M4/98

    Abstract: A catalytic body which is substantially amorphous is formed from at least two materials vacuum deposited on a cool substrate or sprayed on a cool surface to provide a local order non-equilibrium structural configuration. The amorphous body comprises a composition of at least one metal and a second component which maintains the amorphous character of the composition. The body has an increased number and desired type of catalytically active sites. In most applications, the composition includes at least initially a component which is removed by leaching or vaporization to leave a rough surface with a large surface to volume ratio. The resulting composition is sometimes annealed to relax or modify the local structure thereof to provide a more reactive structural configuration. In an electrode form of the invention, the catalytic body is highly conductive, resistant to corrosion and degradation under current reversal and has low overvoltage characteristics when used in electrochemical cells.

    Abstract translation: 基本无定形的催化体由至少两种真空沉积在冷衬底上的材料形成，或者喷在冷表面上以提供局部顺序非平衡结构构型。 非晶体包含维持组合物的非晶性的至少一种金属和第二组分的组合物。 身体具有增加的数量和期望类型的催化活性位点。 在大多数应用中，组合物至少最初包括通过浸出或蒸发除去以使表面与大的表面与体积比大的组分。 所得组合物有时被退火以松弛或改变其局部结构，以提供更具反应性的结构构型。 在本发明的电极形式中，催化体具有高导电性，在电流反转下耐腐蚀和降解，并且当用于电化学电池时具有低的过电压特性。

    Robust metal hydride hydrogen storage system with metal hydride support structure
    5.
    发明授权
    Robust metal hydride hydrogen storage system with metal hydride support structure 失效
    坚固的金属氢化物氢存储系统，具有金属氢化物支撑结构

    公开(公告)号：US5778972A

    公开(公告)日：1998-07-14

    申请号：US623497

    申请日：1996-03-28

    Applicant: Krishna Sapru ,  Srinivasan Venkatesan ,  Ned T. Stetson ,  Krishnaswamy Rangaswamy

    Inventor： Krishna Sapru ,  Srinivasan Venkatesan ,  Ned T. Stetson ,  Krishnaswamy Rangaswamy

    IPC: C01B3/00 ,  F28D15/00

    CPC classification number: C01B3/0005 ,  Y02E60/324

    Abstract: A modular metal hydride hydrogen storage system which can provide a robust and reliable source of hydrogen that can quickly and easily be modified for a variety of applications and environments. The hydrogen storage system comprises at least one storage module. Each storage module comprises a container having at least one open end, a metal hydride hydrogen storage means, means for introducing gaseous hydrogen into and withdrawing gaseous hydrogen from the container, and means for connecting storage modules together end-to-end to form a plurality of storage modules.

    Abstract translation: 一种模块化金属氢化物氢存储系统，可以提供强大可靠的氢源，可以为各种应用和环境快速，轻松地进行修改。 氢存储系统包括至少一个存储模块。 每个存储模块包括具有至少一个开放端的容器，金属氢化物氢存储装置，用于将气态氢引入并从容器中排出气态氢的装置，以及用于将存储模块一端连接以形成多个的装置 的存储模块。

    Fuel cell anode based on a disordered catalytic material
    7.
    发明授权
    Fuel cell anode based on a disordered catalytic material 失效
    基于无序催化材料的燃料电池阳极

    公开(公告)号：US4487818A

    公开(公告)日：1984-12-11

    申请号：US399876

    申请日：1982-07-19

    Applicant: Stanford R. Ovshinsky ,  Krishna Sapru ,  Arie Reger

    Inventor： Stanford R. Ovshinsky ,  Krishna Sapru ,  Arie Reger

    IPC: B01J23/00 ,  H01M4/86 ,  H01M4/90

    CPC classification number: H01M4/9041 ,  H01M4/8621 ,  H01M4/90 ,  H01M2004/8684

    Abstract: An anode for hydrogen oxidation in a fuel cell is formed from a host matrix including at least one transition element which is structurally modified by the incorporation of at least one modifier element to improve its catalytic properties. The catalytic body is based on a disordered non-equilibrium material designed to have a high density of catalytically active sites, resistance to poisoning, and long operating life. Modifier elements, including Ti, Mo, Zr, Mg, V, Si or Al, structurally modify the local chemical environments of a nickel or other transition element host matrix to form the catalytic materials of the anode. The improved low overvoltage catalytic materials of the anode of the present invention increase the operating efficiencies of fuel cells employing such anodes. The catalytic materials can be deposited as a layer on the surface of porous electrode substrates to form a gas diffusion anode or can be formed as a gas diffusion electrode.

    Abstract translation: 在燃料电池中用于氢氧化的阳极由包含至少一个过渡元素的主体基质形成，所述过渡元素通过结合至少一种改性剂元素进行结构改性以改善其催化性能。 催化体基于无定形非平衡材料，其设计具有高密度的催化活性位点，耐中毒性和长使用寿命。 包括Ti，Mo，Zr，Mg，V，Si或Al的改性元素在结构上改变镍或其它过渡元素主体基质的局部化学环境以形成阳极的催化材料。 本发明阳极改进的低过电压催化材料增加了采用这种阳极的燃料电池的运行效率。 催化材料可以作为多孔电极基板的表面上的层来形成气体扩散阳极，或者可以形成为气体扩散电极。

Patent Agency Ranking