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18 条记录 (耗时 0.023 秒)

    SELF-IMPROVING ELECTROCATALYSTS FOR GAS EVOLUTION REACTIONS
    3.
    发明申请
    SELF-IMPROVING ELECTROCATALYSTS FOR GAS EVOLUTION REACTIONS 审中-公开
    自动改进气体发生反应的电解质

    公开(公告)号：US20160153098A1

    公开(公告)日：2016-06-02

    申请号：US14951885

    申请日：2015-11-25

    申请人： Ken Hackenberg ,  Kunttal Keyshar ,  Jingjie Wu ,  Yuanyue Liu ,  Pulickel Ajayan ,  Brandon Wood ,  Boris Yakobson

    发明人： Ken Hackenberg ,  Kunttal Keyshar ,  Jingjie Wu ,  Yuanyue Liu ,  Pulickel Ajayan ,  Brandon Wood ,  Boris Yakobson

    IPC分类号： C25B11/04 ,  C25B1/04

    CPC分类号： C25B11/04 ,  C25B1/04 ,  C25B11/0478 ,  Y02E60/366

    摘要： In some embodiments, the present disclosure pertains to methods of mediating a gas evolution reaction by exposing a gas precursor to an electrocatalyst that comprises a plurality of layers with catalytic sites. The exposing results in electrocatalytic conversion of the gas precursor to a gas. Thereafter, the generated gas enhances the electrocatalytic activity of the electrocatalyst by enhancing the accessibility of the catalytic sites to the gas precursor. In some embodiments, the electrocatalyst is associated with an electrically conductive surface (e.g., an electrode) that provides electrical current. In some embodiments, the electrocatalyst is a hydrogen production electrocatalyst that converts H+ to H2. In some embodiments, the electrocatalyst includes a transition metal dichalcogenide. Further embodiments of the present disclosure pertain to the aforementioned electrocatalysts for mediating gas evolution reactions.

    摘要翻译： 在一些实施方案中，本公开内容涉及通过将气体前体暴露于包含多个具有催化位点的层的电催化剂来介导气体放出反应的方法。 曝光导致气体前体向气体的电催化转化。 此后，产生的气体通过增强对气体前体的催化位点的可及性来提高电催化剂的电催化活性。 在一些实施例中，电催化剂与提供电流的导电表面（例如，电极）相关联。 在一些实施方案中，电催化剂是将H +转化为H 2的氢气生产电催化剂。 在一些实施方案中，电催化剂包括过渡金属二硫属化物。 本公开的另外的实施方案涉及上述用于介导气体放出反应的电催化剂。

    Miniaturized gas sensors featuring electrical breakdown in the vicinity of carbon nanotube tips
    5.
    发明申请
    Miniaturized gas sensors featuring electrical breakdown in the vicinity of carbon nanotube tips 审中-公开
    微型气体传感器在碳纳米管尖端附近具有电击穿功能

    公开(公告)号：US20060251543A1

    公开(公告)日：2006-11-09

    申请号：US10540112

    申请日：2003-12-19

    申请人： Nikhil Koratkar ,  Pulickel Ajayan ,  Ashish Modi ,  Eric Lass

    发明人： Nikhil Koratkar ,  Pulickel Ajayan ,  Ashish Modi ,  Eric Lass

    IPC分类号： G01N27/00

    CPC分类号： G01N30/64 ,  B82Y15/00 ,  B82Y30/00 ,  G01N2030/025

    摘要： An ionization gas sensor includes a first electrode and a second electrode, such as cathode and anode electrodes. The second electrode is a carbon nanotube film having a carbon nanotube density such that the film behaves as a conducting sheet electrode. The sensor also includes a voltage source electrically connected to the first and to the second electrodes. The voltage source is adapted to generate an electric field near tips of carbon nanotubes in the carbon nanotube film which induces electrical breakdown of an analyte gas, which leads to a self-sustaining inter-electrode arc discharge

    摘要翻译： 电离气体传感器包括第一电极和第二电极，例如阴极和阳极电极。 第二电极是具有碳纳米管密度的碳纳米管膜，使得膜表现为导电片电极。 传感器还包括电连接到第一和第二电极的电压源。 电压源适于在碳纳米管膜中的碳纳米管的尖端附近产生电场，其引起分析物气体的电击穿，这导致自维持的电极间电弧放电

    Super-compressible carbon nanotube films and micro-bundles
    9.
    发明授权
    Super-compressible carbon nanotube films and micro-bundles 有权
    超可压缩碳纳米管薄膜和微束

    公开(公告)号：US07727624B2

    公开(公告)日：2010-06-01

    申请号：US11602495

    申请日：2006-11-21

    申请人： Anyuan Cao ,  Pulickel Ajayan

    发明人： Anyuan Cao ,  Pulickel Ajayan

    IPC分类号： B32B3/26 ,  B32B3/28 ,  C08J9/00

    CPC分类号： C04B38/00 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/162 ,  C01B2202/06 ,  C01B2202/08 ,  C01B2202/26 ,  C04B2111/0037 ,  Y10T428/2457 ,  Y10T428/249953 ,  Y10T428/249978 ,  Y10T428/249979 ,  C04B14/026 ,  C04B30/02

    摘要： An open-cell carbon nanotube foam is made of a plurality of separated carbon nanotubes. The foam exhibits a Poisson's ratio substantially equal to zero, a compressibility of at least 85%, a recovery rate of at least 120 mm/min, a compressive strength of at least 12 MPa, a sag factor of at least 4, a fatigue resistance to no more than 15% permanent deformation when subjected to at least 1,000 compressive cycles at a strain of 85%, and/or a resilience of between 25% and 30%. The carbon nanotubes may be multiwalled carbon nanotubes that are aligned parallel to a thickness of a film comprising the foam.

    摘要翻译： 开孔碳纳米管泡沫由多个分离的碳纳米管制成。 泡沫体的泊松比基本上等于零，压缩率至少为85％，回收率至少为120mm / min，抗压强度至少为12MPa，松弛系数至少为4，抗疲劳性 当在85％的应变和/或25％至30％的回弹力下经受至少1,000次压缩循环时，永久变形不超过15％。 碳纳米管可以是与包含泡沫的膜的厚度平行排列的多壁碳纳米管。