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    • 13. 发明申请
    • HOLLOW SPHERES FROM LAYERED PRECURSOR DEPOSITION ON SACRIFICIAL COLLOIDAL CORE PARTICLES
    • 来自层状前体沉积物的深色球体对极性胶体核心颗粒
    • WO2002074431A1
    • 2002-09-26
    • PCT/EP2002/003127
    • 2002-03-20
    • MAX-PLANCK-GESELLSCHAFT ZUR FÖRDERUNG DER WISSENSCHAFTENCARUSO, Frank
    • CARUSO, Frank
    • B01J13/22
    • B82Y30/00B01J13/02B01J13/22C01G1/02C01G23/053C01P2002/60C01P2002/72C01P2002/88C01P2004/03C01P2004/04C01P2004/32C01P2004/34C01P2004/61C01P2004/62C01P2004/64C01P2004/84C01P2006/60C09C1/3607
    • The preparation of monodisperse hollow titania spheres with defined diameter, wall thickness and crystal phase is reported. The hollow spheres have been produced by the layered deposition of a water-soluble titania precursor, e.g. titanium(IV) bis (ammonium lactato) dihydroxide (TALH), in alternation with poly(diallydimethylammonium chloride) (PDADMAC) onto submicrometer-sized template particles e.g. polystyrene (PS) particles, followed by calcination at elevated temperatures. the layer-by-layer growth of the coating on the colloid particles was observed by microelectrophoresis and transmission electron microscopy (TEM). Calcination of the TALH/PDADMAC-coated particles resulted in intact, hollow titania spheres, as confirmed by scanning electron microscopy (SEM) and TEM. Calcining the coated particles at 450 or 950° C resulted in hollow sphere consisting of titania in anatase or rutile form, respectively. Nanometer-level control over the sphere wall thickness was achieved by varying the number of layers deposited on the PS particles. The hollow titania spheres produced can be used in photonic applications, where hollow spheres of high refractive index materials are desired, and in catalysis.
    • 报道了制备具有规定直径,壁厚和结晶相的单分散中空二氧化钛球体。 中空球体已经通过水溶性二氧化钛前体的分层沉积来制备。 与二(二烯丙基二甲基氯化铵)(PDADMAC)交替的亚硫酸铵(IV)双(乳酸铵)二氢氧化物(TALH)转移到亚微米尺寸的模板颗粒上。 聚苯乙烯(PS)颗粒,然后在升高的温度下煅烧。 通过微电泳和透射电子显微镜(TEM)观察胶体颗粒上涂层的逐层生长。 通过扫描电子显微镜(SEM)和TEM证实,TALH / PDADMAC涂覆的颗粒的煅烧导致完整的中空二氧化钛球体。 在450或950℃下煅烧涂覆的颗粒,分别导致由锐钛矿或金红石形式的二氧化钛组成的空心球体。 通过改变沉积在PS颗粒上的层数来实现球体壁厚的纳米级控制。 所生产的空心二氧化钛球体可用于需要高折射率材料的空心球体和催化剂的光子学应用中。
    • 18. 发明专利
    • AT233840T
    • 2003-03-15
    • AT99901321
    • 1999-01-13
    • CARUSO FRANK
    • CARUSO FRANK
    • D06B15/00D06C5/00D06C21/00
    • A cylindrical shaped mandrel is used as a support inside the sleeve of tubular knit fabric, for maintaining the cylindrical shape of the fabric during extraction and compacting processes. Encasing the fabric and the mandrel is a larger diameter cylindrical ring member which presses the fabric against the mandrel in order to perform the extraction and compaction processes. The ring member extends for some distance in the longitudinal direction of travel of the knit fabric and contains a mechanism, such as a detent, for retaining the mandrel in place. A rope of tubular fabric is conveyed into the mandrel/ring assembly by an endless conveyor or belt made from a flexible material such as rubber. As the fabric is fed onto the mandrel, the belt forms a cylindrical sleeve around the fabric and the mandrel and is compressed by the cylindrical ring.