Nanostructured titanium oxide material and its synthesis procedure
    2.
    发明申请
    Nanostructured titanium oxide material and its synthesis procedure 有权
    纳米结构二氧化钛材料及其合成方法

    公开(公告)号:US20060078726A1

    公开(公告)日:2006-04-13

    申请号:US11121178

    申请日:2005-05-04

    IPC分类号: C01G23/047 B32B5/16

    摘要: Nanomaterials of the JT phase of the titanium oxide TiO2-x, where 0≦x≦1 having as a building block a crystalline structure with an orthorhombic symmetry and described by at least one of the space groups 59 Pmmn, 63 Amma, 71 Immm or 63 Bmmb. These nanomaterials are in the form of nanofibers, nanowires, nanorods, nanoscrolls and/or nanotubes. The nanomaterials are obtained from a hydrogen titanate and/or a mixed sodium and hydrogen titanate precursor compound that is isostructural to the JT crystalline structure. The titanates are the hydrogenated, the protonated, the hydrated and/or the alkalinized phases of the JT crystalline phase that are obtained from titanium compounds such as titanium oxide with an anatase crystalline structure, amorphous titanium oxide, and titanium oxide with a rutile crystalline structure, and/or directly from the rutile mineral and/or from ilmenite. The titanates are submitted to dynamic thermal treatment in an inert, oxidizing or reducing atmosphere to produce the JT phase of the TiO2-x, where 0≦x≦1 with an orthorhombic structure.

    摘要翻译: 二氧化钛TiO 2-x N的JT相的纳米材料,其中作为结构单元的0≤x≤1具有正交对称的晶体结构并且由至少一个空间描述 组59 Pmmn,63 Amma,71 Immm或63 Bmmb。 这些纳米材料是纳米纤维,纳米线,纳米棒,纳米线和/或纳米管的形式。 所述纳米材料是从钛酸钛和/或与JT晶体结构同构的混合的钛酸钠和氢氧化钛前体化合物获得的。 钛酸盐是由钛化合物如具有锐钛矿晶体结构的钛氧化物,无定形氧化钛和具有金红石结晶结构的氧化钛获得的JT结晶相的氢化,质子化,水合和/或碱化相 ,和/或直接来自金红石矿物和/或钛铁矿。 钛酸盐在惰性,氧化或还原气氛中进行动态热处理,以产生TiO 2-x N的JT相,其中0 <= x <= 1,具有正交结构。