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    • 24. 发明申请
    • CATALYTIC NANOPOROUS MEMBRANES
    • 催化纳米膜
    • US20100075827A1
    • 2010-03-25
    • US12610897
    • 2009-11-02
    • Michael J. PellinJohn N. HrynJeffrey W. Elam
    • Michael J. PellinJohn N. HrynJeffrey W. Elam
    • B01J35/10B01J21/04B01J23/22
    • C23C16/045B01J23/22B01J23/26B01J23/42B01J23/462B01J23/755B01J35/065B01J35/1057B01J35/1061B01J37/0226B01J37/0238B01J37/0244C23C16/18C23C16/402C23C16/403C23C16/405C23C16/407C23C16/45525C23C16/45555
    • A nanoporous catalytic membrane which displays several unique features Including pores which can go through the entire thickness of the membrane. The membrane has a higher catalytic and product selectivity than conventional catalysts. Anodic aluminum oxide (AAO) membranes serve as the catalyst substrate. This substrate is then subjected to Atomic Layer Deposition (ALD), which allows the controlled narrowing of the pores from 40 nm to 10 nm in the substrate by deposition of a preparatory material. Subsequent deposition of a catalytic layer on the inner surfaces of the pores reduces pore sizes to less than 10 nm and allows for a higher degree of reaction selectivity. The small pore sizes allow control over which molecules enter the pores, and the flow-through feature can allow for partial oxidation of reactant species as opposed to complete oxidation. A nanoporous separation membrane, produced by ALD is also provided for use in gaseous and liquid separations. The membrane has a high flow rate of material with 100% selectivity. Also provided is a method for producing a catalytic membrane having flow-through pores and discreet catalytic clusters adhering to the inside surfaces of the pores.
    • 纳米多孔催化膜,显示几个独特的特征包括可以穿过膜的整个厚度的孔。 该膜具有比常规催化剂更高的催化和产物选择性。 阳极氧化铝(AAO)膜用作催化剂底物。 然后将该衬底经受原子层沉积(ALD),其允许通过沉积预备材料在衬底中将孔的受控变窄从40nm至10nm。 随后在孔的内表面上沉积催化剂层将孔径减小到小于10nm,并允许较高程度的反应选择性。 小孔径允许控制哪些分子进入孔隙,而与完全氧化相反,流通特征可以允许反应物物质的部分氧化。 还提供由ALD生产的纳米多孔分离膜,用于气相和液体分离。 该膜具有高流速的材料,具有100%的选择性。 还提供了一种制备具有粘附到孔的内表面的流通孔和分散催化剂簇的催化膜的方法。
    • 28. 发明授权
    • Ultrananocrystalline diamond cantilever wide dynamic range acceleration/vibration/pressure sensor
    • 超晶体金刚石悬臂宽动态范围加速/振动/压力传感器
    • US06422077B1
    • 2002-07-23
    • US09543992
    • 2000-04-06
    • Alan R. KraussDieter M. GruenMichael J. PellinOrlando Auciello
    • Alan R. KraussDieter M. GruenMichael J. PellinOrlando Auciello
    • G01P1508
    • G01H9/00B82Y35/00G01D5/30G01H11/06G01L1/005G01L1/044G01P15/0888G01P15/0894G01P15/093Y10S977/732Y10S977/932
    • An ultrananocrystalline diamond (UNCD) element formed in a cantilever configuration is used in a highly sensitive, ultra-small sensor for measuring acceleration, shock, vibration and static pressure over a wide dynamic range. The cantilever UNCD element may be used in combination with a single anode, with measurements made either optically or by capacitance. In another embodiment, the cantilever UNCD element is disposed between two anodes, with DC voltages applied to the two anodes. With a small AC modulated voltage applied to the UNCD cantilever element and because of the symmetry of the applied voltage and the anode-cathode gap distance in the Fowler-Nordheim equation, any change in the anode voltage ratio V1/N2 required to maintain a specified current ratio precisely matches any displacement of the UNCD cantilever element from equilibrium. By measuring changes in the anode voltage ratio required to maintain a specified current ratio, the deflection of the UNCD cantilever can be precisely determined. By appropriately modulating the voltages applied between the UNCD cantilever and the two anodes, or limit electrodes, precise independent measurements of pressure, uniaxial acceleration, vibration and shock can be made. This invention also contemplates a method for fabricating the cantilever UNCD structure for the sensor.
    • 在一个高灵敏度的超小型传感器中,采用悬臂结构形成的超微晶金刚石(UNCD)元件用于在宽动态范围内测量加速度,冲击,振动和静压力。 悬臂UNCD元件可以与单个阳极组合使用,测量光学或电容测量。 在另一个实施例中,悬臂UNCD元件设置在两个阳极之间,其中DC电压施加到两个阳极。 通过施加到UNCD悬臂元件的小的AC调制电压,并且由于Fowler-Nordheim方程中施加的电压和阳极 - 阴极间隙距离的对称性,维持指定的阳极电压比V1 / N2的任何变化 电流比精确匹配UNCD悬臂元件的任何位移与平衡。 通过测量维持指定电流比所需的阳极电压比的变化,可以精确地确定UNCD悬臂的偏转。 通过适当地调制在UNCD悬臂与两个阳极之间施加的电压或极限电极,可以精确地独立测量压力,单轴加速度,振动和冲击。 本发明还考虑了用于制造用于传感器的悬臂UNCD结构的方法。