MESOPOROUS NANO-CRYSTALLINE TITANIA STRUCTURES FOR HYDROGEN SENSING
    11.
    发明申请
    MESOPOROUS NANO-CRYSTALLINE TITANIA STRUCTURES FOR HYDROGEN SENSING 失效
    用于氢感测的多孔纳米晶体TITANIA结构

    公开(公告)号:US20080011050A1

    公开(公告)日:2008-01-17

    申请号:US11777305

    申请日:2007-07-13

    IPC分类号: G01N37/00

    摘要: A structure includes a substantially non-conductive frame having an exterior surface. The structure defines a plurality of passages that open to the exterior surface. Mesoporous material is disposed in the plurality of passages and is supported therein by the frame. In a method for making a mesoporous nanocrystalline titania hybrid material, a templating agent, an acid, and a titania precursor is mixed into a template liquid. A frame that defines a plurality of passages is placed into the template liquid. A solvent is evaporated from the template liquid, thereby forming a titania gel encapsulating the templating agent. The gel is heated to remove substantially the templating agent from the non-conductive frame and the titania, thereby leaving a mesoporous titania material.

    摘要翻译: 一种结构包括具有外表面的基本不导电的框架。 该结构限定了多个通向外表面的通道。 介孔材料设置在多个通道中并被框架支撑在其中。 在制备介孔纳米晶二氧化钛混合材料的方法中,将模板剂,酸和二氧化钛前体混合到模板液中。 将限定多个通道的框架放置在模板液体中。 从模板液中蒸发溶剂,从而形成包封模板剂的二氧化钛凝胶。 将凝胶加热以从非导电性框架和二氧化钛基本上除去模板剂,从而留下介孔二氧化钛材料。

    Multi-channel cross-flow porous device
    13.
    发明申请
    Multi-channel cross-flow porous device 有权
    多通道横流多孔装置

    公开(公告)号:US20060090651A1

    公开(公告)日:2006-05-04

    申请号:US10996522

    申请日:2004-11-24

    IPC分类号: B01D53/02

    摘要: A multi-channel modular device (10) processes between two fluid streams of different compositions. The device (10) includes a porous body (150) having a first plurality of feed-flow pathways (110) disposed in the body (150) for transporting a first stream (180). A pathway wall (114) surrounds each of the first plurality of feed-flow pathways (110) for processing the first stream (180) into a first composition (1852) and a second composition (1802). At least one feed-flow inlet (1101) is disposed in the body (150) for introducing the first stream (180) into the first plurality of feed-flow pathways (110). At least one feed-flow outlet (1102) is disposed in the body (150) for discharging the remaining first stream containing the second composition (1802). At least one second pathway (210) is disposed in the body (150) for transporting a second stream (280) having a second inlet (2101) and a second outlet (2102). A networked plurality of fluid conduits (152) formed in the porous body (150) provides the flow-conduit for the second stream (280) to sweep the first composition (1852) from each of the first plurality of the feed-flow pathways (110) to the second outlet (2102). A vessel (300) ports the inlets (1101 and 2101) and outlets (1102 and 2102) to provide a second stream flow access and for spacing the body within and away from the inner surfaces of the vessel (300) to provide a gap (310) for access. A partition (350) is disposed in the gap between the body and the vessel for diverting the flow within the gap (310).

    摘要翻译: 多通道模块化装置(10)在不同组成的两个流体流之间进行处理。 装置(10)包括具有设置在主体(150)中的第一多个进料流路(110)的多孔体(150),用于输送第一流(180)。 通路壁(114)围绕第一多个进料流通道(110)中的每一个,用于将第一流(180)加工成第一组合物(1852)和第二组合物(1802)。 至少一个进料流入口(1101)设置在主体(150)中,用于将第一流(180)引入第一多个进料通路(110)。 至少一个进料流出口(1102)设置在主体(150)中,用于排出包含第二组合物(1802)的剩余第一流。 至少一个第二通道(210)设置在主体(150)中,用于输送具有第二入口(2101)和第二出口(2102)的第二流(280)。 形成在多孔体(150)中的联网的多个流体导管(152)提供用于第二流(280)的流动管道以从第一组多个进料通道(1852)中的每一个 110)连接到第二出口(2102)。 容器(300)将入口(1101和2101)和出口(1102和2102)连通以提供第二流体流动通道并且用于使体内和容器(300)的内表面间隔开以提供间隙 310)进行访问。 分隔件(350)设置在主体和容器之间的间隙中,用于使流体在间隙(310)内转向。

    Porous ceramic
    15.
    发明授权
    Porous ceramic 失效
    多孔陶瓷

    公开(公告)号:US06737376B1

    公开(公告)日:2004-05-18

    申请号:US09743244

    申请日:2001-06-08

    IPC分类号: C04B3510

    摘要: Porous ceramics are described, which are produced by a) mixing an aqueous solution of a suitable ionotropically orientable polyanion, either with oxides, hydroxides or hydrated oxides, which are present in the form of a sol, of the metals Al, Zr, Ti and Nb, or with finely crystalline oxides, hydroxides or hydrated oxides, which are present in suspension, of these metals, or with finely crystalline tricalcium phosphate or apatite which are present in suspension, b) bringing the mixed sol obtained as in a) or the suspension obtained as in a) into contact with a solution of a salt of a di- or trivalent metal cation in order to produce an ionotropic gel body, c) compacting the gel body by introducing it into electrolyte solutions which further enhance the syneresis of the polyelectrolyte which was originally formed, d) washing the gel body with water and subsequently impregnating it with a readily volatile, water-miscible solvent, e) freeing the anhydrous gel body or gel bodies obtained as in d) from the readily volatile, water-miscible solvent, f) burning out the organic constituents from the dry gel body or the dry gel bodies obtained as in e), g) sintering the product obtained as in f). A capillary frit is also described. Moreover, the invention describes the use of these materials as a catalyst or as a catalyst support, as a ceramic component for composite materials, as a reversible flow filter and as a slab-like sorbent for chromatography columns, as well as the use of a composite material, which is produced from a granular material of the ceramics which are described, as a dental material, particularly as a dental cement.

    摘要翻译: 描述了通过以下方法制备的多孔陶瓷:a)将金属Al,Zr,Ti和Nb中以溶胶形式存在的合适的可离子取向的聚阴离子,即金属,氢氧化物或水合氧化物的水溶液混合, 或这些金属中存在于悬浮液中的精细结晶氧化物,氢氧化物或水合氧化物,或与悬浮液中存在的细晶磷酸三钙或磷灰石,b)使得得到的混合溶胶或所得悬浮液 如同a)与二价或三价金属阳离子盐的溶液接触以产生离子型凝胶体,c)通过将凝胶体引入电解质溶液中来压实凝胶体,所述电解质溶液进一步增强聚电解质的脱水收缩, 最初形成,d)用水洗涤凝胶体,随后用容易挥发的水混溶性溶剂浸渍,e)释放如d)f所得的无水凝胶体或凝胶体 f)易挥发的水溶性溶剂,f)从如干燥凝胶体或如e)所得的干燥凝胶体中烧掉有机成分,g)烧结如f)所得的产物。还描述了毛细管玻璃料 。 此外,本发明描述了这些材料作为催化剂或作为催化剂载体的用途,作为复合材料的陶瓷组分,可逆流动过滤器和用于色谱柱的板状吸附剂,以及使用 复合材料,其由作为牙科材料的陶瓷的颗粒材料制成,特别是作为牙科粘固剂。

    PRODUCTION OF HOLLOW CERAMIC MEMBRANES BY ELECTROPHORETIC DEPOSITION
    16.
    发明申请
    PRODUCTION OF HOLLOW CERAMIC MEMBRANES BY ELECTROPHORETIC DEPOSITION 有权
    通过电沉积生产中空陶瓷膜

    公开(公告)号:US20030178307A1

    公开(公告)日:2003-09-25

    申请号:US10249735

    申请日:2003-05-05

    发明人: Partha SARKAR

    IPC分类号: C25D013/00

    摘要: The present invention provides methods for producing hollow ceramic membranes by electrophoretic deposition. The hollow ceramic membranes may have a small cross-sectional area of about 1.0null10null5 mm2 to about 25 mm2. The cross-sectional configuration of the hollow ceramic membranes may be any geometry such as circular, square, rectangular, triangular or polygonal. The hollow ceramic membranes produced by the methods of the present invention may have multiple layers but always the innermost layer, or the first deposited layer is porous and made by electrophoretic deposition. Subsequent layers may be porous or non porous and deposited before or after sintering the first layer. If it is deposited after sintering, it may require additional sintering steps. Additional layers may be deposited by further electrophoretic deposition, sol-gel coating, dip coating, vacuum casting, brushing, spraying or other known techniques.

    摘要翻译: 本发明提供了通过电泳沉积制造中空陶瓷膜的方法。 中空陶瓷膜可以具有约1.0×10 -5 mm 2至约25mm 2的小横截面积。 中空陶瓷膜的横截面构造可以是任何几何形状,例如圆形,正方形,矩形,三角形或多边形。 通过本发明的方法生产的中空陶瓷膜可以具有多层但总是最内层,或者第一沉积层是多孔的并且通过电泳沉积制成。 随后的层可以是多孔的或非多孔的并且在烧结第一层之前或之后沉积。 如果烧结后沉积,则可能需要额外的烧结步骤。 可以通过进一步的电泳沉积,溶胶 - 凝胶涂覆,浸涂,真空浇铸,刷涂,喷雾或其它已知技术来沉积附加的层。