Preparation method for anion-exchangeable, layered double hydroxides
    21.
    发明授权
    Preparation method for anion-exchangeable, layered double hydroxides 失效
    阴离子交换层状双氢氧化物的制备方法

    公开(公告)号:US08435910B2

    公开(公告)日:2013-05-07

    申请号:US12734955

    申请日:2008-12-02

    IPC分类号: B01J21/16

    摘要: The invention has for its object to provide a preparation method for preparing an anion-exchangeable LDH by decarbonation of a carbonate ion type LDH, which makes sure de carbonation is implemented with safety in a continuous manner while crystal shape, crystal structure and crystallinity are kept intact.The invention provides a preparation method for preparing an anion-exchangeable, layered double hydroxide wherein a carbonate ion type layered double hydroxide (LDH) having a composition represented by a general formula: QxR(OH)z(CO32−)0.5-y/2(X−)y.nH2O where x is indicative of a numeral range of 1.8≦x≦4.2; z is indicative of 2(x+1); y is indicative of a minimum value of at least 0 that increases to less than 1 when anions (X−) remain or a part of anions is introduced; Q is a divalent metal ion; R is a trivalent metal ion; and n is 2±2 is used as a starting material, and y in said general formula increases to a maximum of 1 by substitution of a minus monovalent anion (X−1) at a carbonate ion site thereby implementing substitution, characterized in that the starting material is dispersed in an aqueous solution mixed with a salt containing minus monovalent anions (X−) in an amount enough for substitution at the carbonate ion site while said aqueous solution is kept at a pH (hydrogen ion exponent) of greater than 4 to less than 7.

    摘要翻译: 本发明的目的是提供一种通过碳酸根离子型LDH的脱碳制备可阴离子交换的LDH的制备方法,其确保以连续方式安全地进行脱碳酸化,同时保持晶体形状,晶体结构和结晶度 完整。 本发明提供一种制备阴离子交换性层状双氢氧化物的制备方法,其中具有由以下通式表示的组成的碳酸根离子型层状双氢氧化物(LDH):QxR(OH)z(CO32-)0.5-y / 2 (X-)y.nH 2 O,其中x表示1.8 @ x @ 4.2的数字范围; z表示2(x + 1); y表示当阴离子(X)保留或部分阴离子被引入时,至少为0的最小值增加到小于1; Q是二价金属离子; R是三价金属离子; 并且使用n为2±2作为起始原料,通过在碳酸根离子位置取代负一价阴离子(X-1)从而实现取代,所述通式中的y增加到最大值1,其特征在于: 将原料分散在与含有负一价阴离子(X-X)的盐混合的水溶液中,其量足以在碳酸盐离子位置进行取代,同时所述水溶液保持在大于4至大约4的pH(氢离子指数)至 小于7。

    LUMINESCENT NANOSHEETS, AND FLUORESCENT ILLUMINATORS, SOLAR CELLS AND COLOR DISPLAYS UTILIZING THE SAME AS WELL AS NANOSHEET PAINTS
    23.
    发明申请
    LUMINESCENT NANOSHEETS, AND FLUORESCENT ILLUMINATORS, SOLAR CELLS AND COLOR DISPLAYS UTILIZING THE SAME AS WELL AS NANOSHEET PAINTS 失效
    发光纳米颗粒和荧光照明器,太阳能电池和彩色显示器使用同样的纳米涂层

    公开(公告)号:US20110114175A1

    公开(公告)日:2011-05-19

    申请号:US12737370

    申请日:2009-07-13

    摘要: The invention provides a novel luminescent nanosheet, and applications to that luminescent nanosheet. The invention also breaks down conventional common knowledge of nanosheet solutions to provide a nanosheet paint that makes use of a high-concentration nanosheet solution suitable for dispersion of a luminescent nanosheet or the like.The invention provides a luminescent nanosheet having perovskite octahedral crystals combined together in a planar configuration, characterized in that the octahedral crystals each have a multistacked crystal sheet structure wherein the octahedral crystals are multistacked over at least 3 high in the direction vertical to a sheet plane, and an element providing a luminescence center is solid-solubilized between the multistacked octahedral crystals (see FIG. 8).The invention also provides a nanosheet paint having a nanosheet dispersed in a disperse medium, characterized in that an X value in the following equation 1 found from the vapor pressure of the disperse medium and the concentration of the nanosheet is in a range of less than 4.9×106 to greater than 3.8×103: X=C×V4.01   1 where C is the concentration (M) of the nanosheet, and V is the saturation vapor pressure (torr) of the solvent at 25° C. and 1 atm.

    摘要翻译: 本发明提供了一种新型发光纳米片,以及该发光纳米片的应用。 本发明还分解了纳米片溶液的常规常识,以提供使用适合于发光纳米片等的分散的高浓度纳米片溶液的纳米片涂料。 本发明提供了一种具有以平面构型组合在一起的钙钛矿八面体晶体的发光纳米片,其特征在于,所述八面体晶体各自具有多层结晶片结构,其中所述八面体晶体在垂直于片材平面的方向上至少高3个以上, 并且提供发光中心的元件在多层八面体晶体之间固溶(参见图8)。 本发明还提供一种具有分散在分散介质中的纳米片的纳米片涂料,其特征在于根据分散介质的蒸汽压力和纳米片的浓度得到的下列等式1中的X值在小于4.9的范围内 ×106〜大于3.8×103:X = C×V4.01 1其中C是纳米片的浓度(M),V是溶剂在25℃和1atm下的饱和蒸气压(托) 。

    PREPARATION METHOD FOR ANION-EXCHANGEABLE, LAYERED DOUBLE HYDROXIDES
    24.
    发明申请
    PREPARATION METHOD FOR ANION-EXCHANGEABLE, LAYERED DOUBLE HYDROXIDES 失效
    用于阴离子交换的层状双羟基化合物的制备方法

    公开(公告)号:US20100279848A1

    公开(公告)日:2010-11-04

    申请号:US12734955

    申请日:2008-12-02

    IPC分类号: B01J37/30

    摘要: The invention has for its object to provide a preparation method for preparing an anion-exchangeable LDH by decarbonation of a carbonate ion type LDH, which makes sure de carbonation is implemented with safety in a continuous manner while crystal shape, crystal structure and crystallinity are kept intact.The invention provides a preparation method for preparing an anion-exchangeable, layered double hydroxide wherein a carbonate ion type layered double hydroxide (LDH) having a composition represented by a general formula: QxR(OH)z(CO32−)0.5-y/2(X−)y.nH2O where x is indicative of a numeral range of 1.8≦x≦4.2; z is indicative of 2(x+1); y is indicative of a minimum value of at least 0 that increases to less than 1 when anions (X−) remain or a part of anions is introduced; Q is a divalent metal ion; R is a trivalent metal ion; and n is 2±2 is used as a starting material, and y in said general formula increases to a maximum of 1 by substitution of a minus monovalent anion (X−1) at a carbonate ion site thereby implementing substitution, characterized in that the starting material is dispersed in an aqueous solution mixed with a salt containing minus monovalent anions (X−) in an amount enough for substitution at the carbonate ion site while said aqueous solution is kept at a pH (hydrogen ion exponent) of greater than 4 to less than 7.

    摘要翻译: 本发明的目的是提供一种通过碳酸根离子型LDH的脱碳制备可阴离子交换的LDH的制备方法,其确保以连续方式安全地进行脱碳酸化,同时保持晶体形状,晶体结构和结晶度 完整。 本发明提供一种制备阴离子交换性层状双氢氧化物的制备方法,其中具有由以下通式表示的组成的碳酸根离子型层状双氢氧化物(LDH):QxR(OH)z(CO32-)0.5-y / 2 (X)y.nH 2 O其中x表示数值范围为1.8& nlE; x≦̸ 4.2; z表示2(x + 1); y表示当阴离子(X)保留或部分阴离子被引入时,至少为0的最小值增加到小于1; Q是二价金属离子; R是三价金属离子; 并且使用n为2±2作为起始原料,通过在碳酸根离子位置取代负一价阴离子(X-1)从而实现取代,所述通式中的y增加到最大值1,其特征在于: 将原料分散在与含有负一价阴离子(X-X)的盐混合的水溶液中,其量足以在碳酸盐离子位置进行取代,同时所述水溶液保持在大于4至大约4的pH(氢离子指数)至 小于7。

    Measuring apparatus for measuring a bearing height of plain bearing half
    28.
    发明授权
    Measuring apparatus for measuring a bearing height of plain bearing half 失效
    用于测量滑动轴承一半的轴承高度的测量装置

    公开(公告)号:US5746002A

    公开(公告)日:1998-05-05

    申请号:US710557

    申请日:1996-09-19

    CPC分类号: F16C33/14 G01B21/32

    摘要: A measuring apparatus for speedily measuring a bearing height is disclosed. A plunger of a movable cylinder is extended with a test load P by a constant pressure applying mechanism S. The movable cylinder is ascended from a receded position to a measuring position by a slide cam. A bearing half W disposed on a pushing member is fitted in a receiving cavity of a standard tool in such a manner that an end of the bearing half W slightly protrudes from the receiving cavity portion. When the movable cylinder slightly exceeds the measuring position, a plunger is pressed for the length of the end protruded from the receiving cavity portion. At this point, the bearing half W is held with the test load P. Thus, the bearing height can be immediately measured by a length sensor.

    摘要翻译: 公开了一种用于快速测量轴承高度的测量装置。 可移动气缸的柱塞通过恒压施加机构S由试验载荷P延伸。可动气缸通过滑动凸轮从后退位置上升到测量位置。 设置在推动构件上的轴承半体W以使得轴承半体W的端部从容纳腔部分稍微突出的方式装配在标准工具的容纳腔中。 当可动圆筒稍微超过测量位置时,在从接收腔部分突出的端部的长度处按压柱塞。 此时,轴承半部W与试验载荷P保持一致。因此,可以通过长度传感器立即测量轴承高度。