Ultra-fine gold particle-immobilized alkaline earth metal compounds and
methods for production thereof
    3.
    发明授权
    Ultra-fine gold particle-immobilized alkaline earth metal compounds and methods for production thereof 失效
    超细金颗粒固定碱土金属化合物及其制备方法

    公开(公告)号:US4937219A

    公开(公告)日:1990-06-26

    申请号:US247651

    申请日:1988-09-22

    摘要: An ultra-fine gold particle-immobilized alkaline earth metal compound having ultra-fine gold particles immobilized on an alkaline earth metal compound is useful as a catalyst or as an inflammable gas sensor. This compound is produced by (1) adding an aqueous solution of a gold compound dropwise to an aqueous solution containing an alkaline earth metal compound and having a pH value kept in the range of 7 to 11 thereby inducing immobilization of gold hydroxide on the compound, separating from the solution the gold hydroxide-immobilized compound, and calcining the separated compound at a temperature in the range of 80.degree. to 800.degree. C., (2) by adding a reducing agent to an aqueous solution of an alkaline earth metal having a gold compound dissolved therein, (3) by adding carbon dioxide gas or an acidic aqueous solution to an aqueous solution containing a gold compound and an alkaline earth metal compound thereby inducing immobilization of gold hydroxide on the alkaline earth metal compound, separating from the solution the gold hydroxide-immobilized compound, and calcining the separated compound at a temperature in the range of 100.degree. to 800.degree. C., or (4) by coprecipitating a gold compound and an alkaline earth metal and calcining the coprecipitate at a temperature in the range of 80.degree. to 800.degree. C.

    摘要翻译: 具有固定在碱土金属化合物上的超细金粒子的超细金粒子固定碱土金属化合物可用作催化剂或可燃性气体传感器。 该化合物通过(1)将金化合物的水溶液滴加到含有碱土金属化合物的水溶液中并且将pH值保持在7〜11的范围内,从而引发金氢氧化物固定在化合物上, 从金属氢氧化物固定化合物溶液中分离,并在80〜800℃的温度范围内煅烧分离出的化合物,(2)通过向碱土金属的水溶液中加入还原剂 金化合物溶解在其中,(3)通过将二氧化碳气体或酸性水溶液加入到含有金化合物和碱土金属化合物的水溶液中,从而导致氢氧化物固定在碱土金属化合物上,与溶液分离 金氢氧化物固定化合物,并在100-800℃的温度下煅烧分离的化合物,或(4)通过共沉淀金化合物 和碱土金属,并在80至800℃的温度下煅烧共沉淀物。

    Humidity detection method
    4.
    发明授权
    Humidity detection method 失效
    湿度检测方法

    公开(公告)号:US5879943A

    公开(公告)日:1999-03-09

    申请号:US872940

    申请日:1997-06-11

    IPC分类号: G01N21/59 G01N21/81 G01N33/18

    CPC分类号: G01N21/81

    摘要: A humidity detection material includes oxide of at least one metal selected from the group consisting of Mg, Ca, Mn, Fe, Co, Ni, and Cu. The metal oxide is preferably in the form of a porous material. The metal oxide is formed preferably in the form of a thin film on a transparent substrate. The humidity detection material is contacted with water vapor in the presence of a gas such as air, and the optical absorbance of the humidity detection material is measured to detect the humidity. The humidity can be detected by an optical method.

    摘要翻译: 湿度检测材料包括选自Mg,Ca,Mn,Fe,Co,Ni和Cu中的至少一种金属的氧化物。 金属氧化物优选为多孔材料的形式。 金属氧化物优选在透明基板上以薄膜的形式形成。 湿度检测材料在空气等气体的存在下与水蒸汽接触,测定湿度检测材料的吸光度,以检测湿度。 可以通过光学方法检测湿度。

    Nonlinear optical materials and process for producing the same
    9.
    发明授权
    Nonlinear optical materials and process for producing the same 失效
    非线性光学材料及其制造方法

    公开(公告)号:US5688442A

    公开(公告)日:1997-11-18

    申请号:US640714

    申请日:1996-05-01

    IPC分类号: G02F1/355 F21V9/00 G02F1/35

    CPC分类号: G02F1/3551 Y10T428/256

    摘要: There are provided a third-order nonlinear optical material comprising a film formed on the surface of a transparent substrate and consisting essentially of an oxide of a metal selected from the group consisting of V, Cr, Mn, Fe, Co, Ni and Cu; and a third-order nonlinear optical material of the type as described above wherein the film additionally contains a metal selected from the group consisting of Au, Ag and Cu in the form of particles dispersed therein and having a particle size of at most 500 nm.

    摘要翻译: 提供一种三阶非线性光学材料,其包括在透明基板的表面上形成的膜,其基本上由选自V,Cr,Mn,Fe,Co,Ni和Cu的金属的氧化物组成; 以及如上所述类型的三阶非线性光学材料,其中所述膜另外包含选自Au,Ag和Cu中的金属,其分散在其中的颗粒形式,并且具有至多500nm的粒度。

    Catalyst for Carbon Monoxide Removal and Method of Removing Carbon Monoxide With the Catalyst
    10.
    发明申请
    Catalyst for Carbon Monoxide Removal and Method of Removing Carbon Monoxide With the Catalyst 审中-公开
    用于一氧化碳去除的催化剂和用催化剂除去一氧化碳的方法

    公开(公告)号:US20080008639A1

    公开(公告)日:2008-01-10

    申请号:US11628799

    申请日:2005-05-17

    IPC分类号: B01D53/86 B01J23/52 B01J29/12

    摘要: The present invention provides a method for effectively suppressing the deactivation of a gold nanoparticle catalyst by removing both carbon dioxide and water from a gas to be treated, thereby effectively removing carbon monoxide over a long period of time. The present invention relates to a catalyst for removing carbon monoxide having a carbon dioxide and water remover and a gold nanoparticle catalyst in which gold particles with an average particle diameter of 25 nm or less are supported on a metal oxide; and a method for removing carbon monoxide from a gas containing carbon monoxide, having a step of treating a gas containing carbon monoxide with the carbon dioxide and water remover and the gold nanoparticle catalyst in which gold particles with an average particle diameter of 25 nm or less are supported on a metal oxide.

    摘要翻译: 本发明提供了一种通过从被处理气体中除去二氧化碳和水来有效地抑制金纳米颗粒催化剂失活的方法,从而有效地长时间地除去一氧化碳。 本发明涉及一种除去二氧化碳和除水剂的一氧化碳的催化剂和金纳米颗粒催化剂,其中平均粒径为25nm以下的金颗粒负载在金属氧化物上; 以及从含有一氧化碳的气体中除去一氧化碳的方法,其具有通过二氧化碳和除水剂处理含有一氧化碳的气体的步骤和金纳米颗粒催化剂,其中平均粒径为25nm以下的金颗粒 负载在金属氧化物上。