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41 条记录 (耗时 0.03 秒)

    Nanostructure field emission x-ray analysis
    31.
    发明申请
    Nanostructure field emission x-ray analysis 审中-公开
    纳米结构场发射X射线分析

    公开(公告)号：US20050232392A1

    公开(公告)日：2005-10-20

    申请号：US11064810

    申请日：2005-02-24

    申请人： Keith Bradley ,  Jeff Wyatt

    发明人： Keith Bradley ,  Jeff Wyatt

    IPC分类号： G01N23/223 ,  G01T1/36 ,  H01J35/06

    CPC分类号： H01J35/065 ,  G01N23/223 ,  G01N2223/076 ,  H01J35/116

    摘要： The present invention relates to the use of nanostructure-based field emission x-ray sources in compact, portable x-ray fluorescence spectrometers for elemental analysis in the field. Devices comprising one or more x-ray sources and one or more x-ray detectors are disclosed. Methods to use multiple sources are disclosed.

    摘要翻译： 本发明涉及在紧凑型便携式x射线荧光光谱仪中使用基于纳米结构的场发射x射线源用于现场元素分析。 公开了包括一个或多个x射线源和一个或多个x射线检测器的装置。 公开了使用多个源的方法。

    Boron-oxide and related compounds for hydrogen storage
    36.
    发明授权
    Boron-oxide and related compounds for hydrogen storage 失效
    用于氢存储的硼氧化物和相关化合物

    公开(公告)号：US06991773B2

    公开(公告)日：2006-01-31

    申请号：US10267792

    申请日：2002-10-08

    申请人： Seung-Hoon Jhi ,  Young-Kyun Kwon ,  Keith Bradley ,  Jean-Christophe P. Gabriel

    发明人： Seung-Hoon Jhi ,  Young-Kyun Kwon ,  Keith Bradley ,  Jean-Christophe P. Gabriel

    IPC分类号： C01B3/04 ,  C09K3/00

    CPC分类号： B01D53/02 ,  B01D2253/104 ,  B01D2253/106 ,  B01D2253/112 ,  B01D2253/306 ,  B01D2253/308 ,  B01D2256/16 ,  B01D2259/4525 ,  C01B3/001 ,  Y02E60/324

    摘要： A hydrogen storage medium is provided, where the medium is comprised of boron oxide and closely related compounds such as orthoboric acid, metaboric acid, hydrated boric acid, and disodium borohydrate. The medium is substantially an amorphous glassy network, albeit with local regions of order, pores, and networks that provide surface area. Hydrogen is adsorbed by the medium with a heat of adsorption of about 9 kJ/mol to about 13 kJ/mol, a value which is higher than that of the heat of adsorption of hydrogen on carbon. The value for the heat of adsorption of hydrogen on the inventive storage medium is provided by computation, and corroborated by experimental observation. The higher heat of adsorption of the medium provides for operation at temperatures higher temperatures higher than those provided by carbon. Further provided are methods by which the storage medium can be prepared in such a form so as to permit high capacity hydrogen storage, as well as an apparatus, with the inventive medium disposed therein, for storing hydrogen.

    摘要翻译： 提供了一种储氢介质，其中介质由氧化硼和紧密相关的化合物如原硼酸，偏硼酸，水合硼酸和硼酸二钠组成。 该介质基本上是非晶玻璃质网络，尽管有局部的顺序区域，孔隙和提供表面积的网络。 氢气吸附在约9kJ / mol至约13kJ / mol的吸附热下，该值高于碳对碳的吸附热。 通过计算提供了本发明储存介质上氢的吸附热值，并通过实验观察证实。 介质吸收较高的热量在比碳提供的温度更高的温度下运行。 还提供了存储介质可以以允许高容量氢存储的形式制备的方法，以及其中设置有本发明介质的装置，用于储存氢。

    Hydrogen storage in nanostructure with physisorption
    37.
    发明授权
    Hydrogen storage in nanostructure with physisorption 有权
    具有物理吸附的纳米结构中的氢储存

    公开(公告)号：US06672077B1

    公开(公告)日：2004-01-06

    申请号：US10020392

    申请日：2001-12-11

    申请人： Keith Bradley ,  Philip G. Collins ,  Jean-Christophe P. Gabriel ,  Young-Kyun Kwon ,  Seung-Hoon Jhi ,  George Grüner

    发明人： Keith Bradley ,  Philip G. Collins ,  Jean-Christophe P. Gabriel ,  Young-Kyun Kwon ,  Seung-Hoon Jhi ,  George Grüner

    IPC分类号： F17C1100

    CPC分类号： C01B3/001 ,  F17C11/005 ,  Y02E60/321 ,  Y02E60/324 ,  Y10S977/948

    摘要： A hydrogen containing nanostructure is provided, where the hydrogen is adsorbed to the nanostructure by physisorption. The nanostructure includes light elements, selected from the second and third rows of the periodic table. The nanostructure is formed as a layered network of light elements coupled with covalent sp2 bonds. The chemical composition of the nanostructure can be such that the desorption temperature of hydrogen is greater than the liquefaction temperature of nitrogen, 77 K. Further, a hydrogen storage system is provided, including a container and a nanostructured storage material within the container, wherein the nanostructured storage material includes light elements, and the nanostructured storage material is capable of adsorbing hydrogen by physisorption. The hydrogen storage system can include a liquid nitrogen based cooling system, capable of cooling the nanostructured storage material below the desorption temperature of hydrogen. Some embodiments contain a heater to control the temperature of the nanostructured storage material.

    摘要翻译： 提供含氢的纳米结构，其中通过物理吸附将氢吸附到纳米结构。 纳米结构包括选自周期表的第二行和第三行的光元件。 纳米结构形成为与共价sp 2结合的光元件的分层网络。 纳米结构的化学组成可以使得氢的解吸温度大于氮的液化温度（77K）。此外，提供了一种储氢系统，其包括容器内的容器和纳米结构的储存材料，其中 纳米结构储存材料包括轻元素，纳米结构储存材料能够通过物理吸附吸附氢。 氢存储系统可以包括液氮冷却系统，其能够将纳米结构的储存材料冷却至低于氢的解吸温度。 一些实施例包含用于控制纳米结构存储材料的温度的加热器。

    FLEXIBLE NANOSTRUCTURE ELECTRONIC DEVICES
    39.
    发明申请
    FLEXIBLE NANOSTRUCTURE ELECTRONIC DEVICES 有权
    柔性纳米结构电子器件

    公开(公告)号：US20120025165A1

    公开(公告)日：2012-02-02

    申请号：US13096891

    申请日：2011-04-28

    申请人： N. Peter Armitage ,  Keith Bradley ,  Jean-Christophe P. Gabriel ,  George Grüner

    发明人： N. Peter Armitage ,  Keith Bradley ,  Jean-Christophe P. Gabriel ,  George Grüner

    IPC分类号： H01L29/66 ,  B82Y99/00

    CPC分类号： H01B1/24 ,  B82Y10/00 ,  B82Y15/00 ,  H01L51/0048 ,  H01L51/0097 ,  H01L51/0595

    摘要： A flexible electronic device is made up of nanostructures. Specifically, the device includes a flexible substrate, a film of nanostructures in contact with the flexible substrate, a first conducting element in contact with the film of nanostructures, and a second conducting element in contact with the film of nanostructures. The nanostructures may comprise nanotubes, such as carbon nanotubes disposed along the flexible substrate, such as an organic or polymer substrate. The first and second conductive elements may serve as electrical terminals, or as a source and drain. In addition, the electronic device may include a gate electrode that is in proximity to the nanotubes and not in electrical contact with the nanotubes. In this configuration, the device can operate as a transistor or a FET. The device may also be operated in a resistive mode as a chemical sensor (e.g., for sensing NH3).

    摘要翻译： 灵活的电子设备由纳米结构组成。 具体地，该装置包括柔性基板，与柔性基板接触的纳米结构薄膜，与纳米结构薄膜接触的第一导电元件和与纳米结构薄膜接触的第二导电元件。 纳米结构可以包括纳米管，例如沿着柔性基底设置的碳纳米管，例如有机或聚合物基底。 第一和第二导电元件可以用作电端子，或用作源极和漏极。 此外，电子器件可以包括位于纳米管附近并且不与纳米管电接触的栅电极。 在这种配置中，器件可以作为晶体管或FET工作。 该装置还可以作为化学传感器（例如，用于感测NH 3）以电阻模式操作。

    Nanostructures with electrodeposited nanoparticles
    40.
    发明授权
    Nanostructures with electrodeposited nanoparticles 有权
    具有电沉积纳米粒子的纳米结构

    公开(公告)号：US07449757B2

    公开(公告)日：2008-11-11

    申请号：US10945803

    申请日：2004-09-20

    申请人： Keith Bradley ,  Alona J. Davis ,  Jean-Christophe P. Gabriel ,  Tzong-Ru Han ,  Vikram Joshi ,  Alexander Star

    发明人： Keith Bradley ,  Alona J. Davis ,  Jean-Christophe P. Gabriel ,  Tzong-Ru Han ,  Vikram Joshi ,  Alexander Star

    IPC分类号： G01N27/403

    CPC分类号： B82Y30/00 ,  G01N27/4146 ,  G01N33/005 ,  Y10S977/72

    摘要： A nanoelectronic device includes a nanostructure, such as a nanotube or network of nanotubes, disposed on a substrate. Nanoparticles are disposed on or adjacent to the nanostructure so as to operatively effect the electrical properties of the nanostructure. The nanoparticles may be composed of metals, metal oxides, or salts, and nanoparticles composed of different materials may be present. The amount of nanoparticles may be controlled to preserve semiconductive properties of the nanostructure, and the substrate immediately adjacent to the nanostructure may remain substantially free of nanoparticles. A method for fabricating the device includes electrodeposition of the nanoparticles using one or more solutions of dissolved ions while providing an electric current to the nanostructures but not to the surrounding substrate.

    摘要翻译： 纳米电子器件包括设置在衬底上的纳米结构，例如纳米管或纳米管网络。 将纳米颗粒设置在纳米结构上或与纳米结构相邻，以便有效地影响纳米结构的电性能。 纳米颗粒可以由金属，金属氧化物或盐组成，并且可以存在由不同材料组成的纳米颗粒。 可以控制纳米颗粒的量以保持纳米结构的半导体性质，并且紧邻纳米结构的衬底可以基本上不含纳米颗粒。 制造该器件的方法包括使用一种或多种溶解离子的溶液电沉积纳米颗粒，同时向纳米结构提供电流，而不向周围的衬底提供电流。