Ultra-sensitive metal oxide gas sensor and fabrication method thereof
    1.
    发明授权
    Ultra-sensitive metal oxide gas sensor and fabrication method thereof 有权
    超敏感金属氧化物气体传感器及其制造方法

    公开(公告)号:US07640789B2

    公开(公告)日:2010-01-05

    申请号:US11644121

    申请日:2006-12-22

    IPC分类号: G01N27/26 B05D3/00

    CPC分类号: G01N27/127

    摘要: A method for fabricating an ultra-sensitive metal oxide gas sensor is disclosed, which comprises the steps of spinning a mixture solution including a metal oxide precursor and a polymer onto a sensor electrode to form a metal oxide precursor-polymer composite fiber; thermally compressing or thermally pressurizing the composite fiber; and thermally treating the thermally compressed or thermally pressurized composite fiber to remove the polymer from the composite fiber. Since the gas sensor includes a macro pore between nanofibers and a meso pore between nano-rods and/or nano-grains, gas diffusion and surface area can be maximized. Also, the ultra-sensitive sensor having high stability in view of mechanical, thermal, and electrical aspects can be obtained through rapid increase of adhesion between the metal oxide thin layer and the sensor electrode.

    摘要翻译: 公开了一种用于制造超敏感金属氧化物气体传感器的方法,其包括将包含金属氧化物前体和聚合物的混合溶液旋转到传感器电极上以形成金属氧化物前体 - 聚合物复合纤维的步骤; 热压缩或热加压复合纤维; 并热处理热压缩或热加压的复合纤维以从复合纤维中除去聚合物。 由于气体传感器包括纳米纤维与纳米棒和/或纳米颗粒之间的中孔的宏观孔隙,所以气体扩散和表面积可以最大化。 此外,通过快速增加金属氧化物薄层和传感器电极之间的粘附力,可以获得机械,热和电学方面具有高稳定性的超灵敏传感器。

    GAS SENSOR USING METAL OXIDE NANOPARTICLES, AND METHOD FOR MANUFACTURING SAME
    2.
    发明申请
    GAS SENSOR USING METAL OXIDE NANOPARTICLES, AND METHOD FOR MANUFACTURING SAME 有权
    使用金属氧化物纳米颗粒的气体传感器及其制造方法

    公开(公告)号:US20120042713A1

    公开(公告)日:2012-02-23

    申请号:US13266815

    申请日:2010-04-30

    IPC分类号: G01N27/12 B05D1/04 B05D5/12

    摘要: The present invention provides a gas sensor, including: a sensor substrate provided with an electrode; and a thin layer of sensor material formed by spraying a solution in which metal oxide nanoparticles are dispersed onto the sensor substrate. The gas sensor is advantageous in that a sensor material is formed into a porous thin layer containing metal oxide nanoparticles having a large specific surface area, thus realizing high sensitivity on the ppb scale and a high reaction rate. Further, the gas sensor is advantageous in that it can be manufactured at room temperature, and the thickness of a sensor material can be easily adjusted by adjusting the spray time, so that a thin gas sensor or a thick gas sensor can be easily manufactured.

    摘要翻译: 本发明提供一种气体传感器,包括:具有电极的传感器基板; 以及通过将金属氧化物纳米粒子分散在传感器基板上的溶液喷雾形成的薄层传感器材料。 气体传感器的优点在于,传感器材料形成为具有大比表面积的金属氧化物纳米粒子的多孔薄层,因此在ppb量程上实现高灵敏度和高反应速率。 此外,气体传感器的优点在于其可以在室温下制造,并且通过调节喷射时间可以容易地调节传感器材料的厚度,从而可以容易地制造薄气体传感器或厚气体传感器。

    Ultra-sensitive metal oxide gas sensor and fabrication method thereof
    5.
    发明申请
    Ultra-sensitive metal oxide gas sensor and fabrication method thereof 有权
    超敏感金属氧化物气体传感器及其制造方法

    公开(公告)号:US20070261959A1

    公开(公告)日:2007-11-15

    申请号:US11644121

    申请日:2006-12-22

    IPC分类号: B05D3/00 G01N27/26

    CPC分类号: G01N27/127

    摘要: A method for fabricating an ultra-sensitive metal oxide gas sensor is disclosed, which comprises the steps of spinning a mixture solution including a metal oxide precursor and a polymer onto a sensor electrode to form a metal oxide precursor-polymer composite fiber; thermally compressing or thermally pressurizing the composite fiber; and thermally treating the thermally compressed or thermally pressurized composite fiber to remove the polymer from the composite fiber. Since the gas sensor includes a macro pore between nanofibers and a meso pore between nano-rods and/or nano-grains, gas diffusion and surface area can be maximized. Also, the ultra-sensitive sensor having high stability in view of mechanical, thermal, and electrical aspects can be obtained through rapid increase of adhesion between the metal oxide thin layer and the sensor electrode.

    摘要翻译: 公开了一种用于制造超敏感金属氧化物气体传感器的方法,其包括将包含金属氧化物前体和聚合物的混合溶液旋转到传感器电极上以形成金属氧化物前体 - 聚合物复合纤维的步骤; 热压缩或热加压复合纤维; 并热处理热压缩或热加压的复合纤维以从复合纤维中除去聚合物。 由于气体传感器包括纳米纤维与纳米棒和/或纳米颗粒之间的中孔的宏观孔隙,所以气体扩散和表面积可以最大化。 此外,通过快速增加金属氧化物薄层和传感器电极之间的粘附力,可以获得机械,热和电学方面具有高稳定性的超灵敏传感器。

    METAL OXIDE SUPERCAPACITOR HAVING METAL OXIDE ELECTRODE COATED ONTO TITANIUM DIOXIDE ULTRAFINE FIBER AND METHOD FOR PREPARING THE SAME
    8.
    发明申请
    METAL OXIDE SUPERCAPACITOR HAVING METAL OXIDE ELECTRODE COATED ONTO TITANIUM DIOXIDE ULTRAFINE FIBER AND METHOD FOR PREPARING THE SAME 失效
    具有涂覆在二氧化钛超细纤维上的金属氧化物电极的金属氧化物超级电容器及其制备方法

    公开(公告)号:US20070095657A1

    公开(公告)日:2007-05-03

    申请号:US11556007

    申请日:2006-11-02

    摘要: A supercapacitor having a metal oxide electrode and a method for preparing the same. The method comprises preparing a substrate composed of a current collector and a titanium dioxide ultrafine fiber matrix layer formed on the current collector, and electrochemically depositing a metal oxide thin film layer onto the substrate by a constant current potentiometry or a cyclic voltammetric method. Since the metal oxide is uniformly deposited on the substrate having a wide specific surface area with the titanium dioxide ultrafine fiber, a bonding material or a conductive particle need not to be added to the capacitor electrode. Therefore, a resistance of the capacitor electrode is prevented from being increased, and thus a capacitance of the capacitor electrode is prevented from being decreased.

    摘要翻译: 具有金属氧化物电极的超级电容器及其制备方法。 该方法包括制备由集电体构成的基板和形成在集电体上的二氧化钛超细纤维矩阵层,并通过恒定电流电位法或循环伏安法将金属氧化物薄膜层电化学沉积到基板上。 由于金属氧化物通过二氧化钛超细纤维均匀地沉积在具有宽比表面积的基板上,所以不需要在电容器电极上添加接合材料或导电颗粒。 因此,防止电容器电极的电阻增加,从而防止电容器电极的电容减小。

    HEAT RESISTING SEPARATOR HAVING ULTRAFINE FIBROUS LAYER AND SECONDARY BATTERY HAVING THE SAME
    9.
    发明申请
    HEAT RESISTING SEPARATOR HAVING ULTRAFINE FIBROUS LAYER AND SECONDARY BATTERY HAVING THE SAME 审中-公开
    具有超滤层的隔热隔离层及具有该层的二次电池

    公开(公告)号:US20100304205A1

    公开(公告)日:2010-12-02

    申请号:US12376516

    申请日:2006-12-08

    IPC分类号: H01M2/18

    摘要: A polyolefin separator having an heat-resistant ultrafine fibrous layer and a secondary battery using the same, in which the separator has a shutdown function, low thermal contraction characteristics, thermal endurance, excellent ionic conductivity, excellent cycling characteristics at the time of battery construction, and excellent adhesion with an electrode. The present N invention adopts a very simple and easy process to form an ultrafine fibrous layer through an electrospinning process, and at the same time, to remove solvent and to form pores. Accordingly, the separator of the present invention is useful particularly for electrochemical devices used in a hybrid electric automobile, an electric automobile, and a fuel cell automobile, requiring high thermal endurance and thermal stability.

    摘要翻译: 具有耐热超细纤维层的聚烯烃隔膜和使用其的二次电池,其中隔膜具有关闭功能,低热收缩特性,耐热性,优异的离子导电性,电池构造时的优异的循环特性, 和与电极的优异粘合性。 本发明采用非常简单和简单的方法,通过静电纺丝方法形成超细纤维层,同时除去溶剂并形成孔。 因此,本发明的隔膜特别适用于需要高耐热性和热稳定性的混合电动汽车,电动汽车和燃料电池汽车中使用的电化学装置。