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    • 2. 发明授权
    • Promoter for purifying internal engine exhaust and method for preparing the same
    • 内燃机排气净化装置及其制备方法
    • US06475949B1
    • 2002-11-05
    • US09460373
    • 1999-12-13
    • Yasuhide YamaguchiMasatoshi Yamazaki
    • Yasuhide YamaguchiMasatoshi Yamazaki
    • B01J2300
    • B01D53/945B01J21/04B01J23/10B01J23/63B01J35/023B01J37/0242B01J37/03Y02T10/22
    • The promoter includes (A) particulate aluminum oxide and (B) a double oxide of (i) cerium and (ii) at least one member selected from the group consisting of zirconium, yttrium, strontium, barium and rare earth elements, supported on the particulate aluminum oxide. A solution of (i) a water-soluble salt of cerium and (ii) a water-soluble salt of at least one member selected from the group consisting of zirconium, yttrium, strontium, barium and rare earth elements is formed. Particulate aluminum oxide is added to the solution to form a dispersion. An aqueous solution of ammonium hydrogen carbonate is added to the dispersion to obtain particulate aluminum oxide coated with a reaction product. The particulate aluminum oxide coated with the reaction product is fired. Alternatively, an aqueous solution containing (i) the water-soluble salt of cerium and (ii) the water-soluble salt of the at least one member dissolved therein is adhered onto particulate aluminum oxide. The particulate aluminum oxide provided thereon with the aqueous solution adhered thereto is brought into contact with an aqueous solution of ammonium hydrogen carbonate to cause a reaction between these solutions and to thus deposit a reaction product on the particulate aluminum oxide. The particulate aluminum oxide with the reaction product deposit is fired.
    • 促进剂包括(A)颗粒状氧化铝和(B)(i)铈的双氧化物和(ii)选自锆,钇,锶,钡和稀土元素中的至少一种,负载在 颗粒状氧化铝。 形成(i)铈的水溶性盐和(ii)选自锆,钇,锶,钡和稀土元素中的至少一种的水溶性盐的溶液。 将颗粒状氧化铝加入到溶液中以形成分散体。 向分散体中加入碳酸氢铵水溶液,得到涂覆有反应产物的颗粒状氧化铝。 涂覆有反应产物的颗粒状氧化铝被烧制。 或者,将含有(i)铈的水溶性盐和(ii)溶解在其中的至少一种的水溶性盐的水溶液粘附到颗粒状氧化铝上。 与其上附着有水溶液的颗粒状氧化铝与碳酸氢铵的水溶液接触,引起这些溶液之间的反应,从而将反应产物沉积在颗粒状氧化铝上。 将具有反应产物沉积物的颗粒状氧化铝烧制。
    • 3. 发明授权
    • Photocatalyst and method for preparing the same
    • 光催化剂及其制备方法
    • US5668076A
    • 1997-09-16
    • US429345
    • 1995-04-26
    • Yasuhide YamagushiMasatoshi YamazakiAkira FujishimaKazuhito Hashimoto
    • Yasuhide YamagushiMasatoshi YamazakiAkira FujishimaKazuhito Hashimoto
    • B01J23/06B01J35/00B01J37/02
    • B01J23/06B01J35/002B01J35/004B01J37/0226
    • A photocatalyst comprises, on the surface, a zinc oxide film which comprises zinc oxide fine particles formed by anodic oxidation of zinc and having a particle size of not more than 0.2 .mu.m and a method for preparing a photocatalyst comprises the step of anodically oxidizing the surface of a zinc metal substance or a substance mainly comprising zinc metal to form, on the surface, a zinc oxide film which comprises zinc oxide fine particles having a particle size of not more than 0.2 .mu.m. The photocatalyst permits quite efficient decomposition or destruction of gases or bacterial cells to be treated, can easily be adhered to faces to which the photocatalytic function is to be imparted to thus impart sterilization and/or deodorization functions thereto and can easily be fitted to various apparatuses to which a film has conventionally been applied with great difficulty. In particular, if the thickness of the metal substrate is not more than 1 mm, the photocatalyst can be processed by, for instance, cutting and/or bending so that it can be adhered to faces other than flat ones. Moreover, if the photocatalytic activity thereof is deteriorated due to, for instance, contamination, the used photocatalyst can easily be replaced with a fresh one.
    • 光催化剂在表面上包含氧化锌膜,其包含通过阳极氧化锌并且具有不大于0.2μm的粒径形成的氧化锌微粒,以及制备光催化剂的方法包括以下步骤:阳极氧化 锌金属物质的表面或主要包含锌金属的物质,在表面上形成包含粒径不大于0.2μm的氧化锌微粒的氧化锌膜。 光催化剂可以很好地分解或破坏待处理的气体或细菌细胞,可以容易地粘附到赋予光催化功能的面上,从而赋予其消毒和/或除臭功能,并且可以容易地装配到各种装置 电影传统上很难应用于其中。 特别地,如果金属基板的厚度不大于1mm,则光催化剂可以通过例如切割和/或弯曲进行加工,使得其可以粘附到除平面以外的面上。 此外,如果由于例如污染导致的光催化活性劣化,则可以容易地用新鲜的光催化剂代替所使用的光催化剂。