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    METAL OXIDE NANOTUBE AND PROCESS FOR PRODUCTION THEREOF
    125.
    发明公开
    METAL OXIDE NANOTUBE AND PROCESS FOR PRODUCTION THEREOF 有权
    METALLOXIDNANORÖHRENUND HERSTELLUNGSVERFAHRENDAFÜR

    公开(公告)号：EP1518823A1

    公开(公告)日：2005-03-30

    申请号：EP03715443.2

    申请日：2003-03-26

    申请人： Japan Science and Technology Agency ,  National Institute of Advanced Industrial Science and Technology

    发明人： Shimizu, T., Tsukuba Center, Nat. Inst. Adv. Ind. ,  Jung, Jong Hwa

    IPC分类号： C01B13/32 ,  C01B33/12 ,  C01B3/00 ,  B01J20/06 ,  B01J20/10 ,  B01J20/30

    CPC分类号： B82Y30/00 ,  B01J20/06 ,  B01J20/28007 ,  B01J20/28023 ,  B01J20/28092 ,  B01J20/30 ,  C01B3/001 ,  C01B13/14 ,  C01B13/32 ,  C01B33/12 ,  C01G1/02 ,  C01G23/047 ,  C01G25/02 ,  C01P2004/04 ,  C01P2004/13 ,  C01P2006/12 ,  C01P2006/17 ,  C01P2006/80 ,  Y02E60/327 ,  Y02E60/328 ,  Y10S977/811 ,  Y10S977/963

    摘要： Spiral shaped fibers (Japanese Patent Application 2001-239014) were utilized to prepare completely novel metal oxide nanotubes comprising solely metal oxides.
    The metal oxide nanotubes comprise solely a hollow cylinder shaped metal oxide which may contain hydroxyl groups constituting a double helix and having hole diameter distributions containing two peak hole diameters ranging from 1 to 2 nm and from 3 to 7 nm. The tubes may be obtained using a process comprising the steps of dissolving compound 1 represented by the chemical formula (chemical formula 1) shown below
    and compound 2 represented by the chemical formula (chemical formula 1) shown below
    (in the formula A and B, may be identical or different from each other, represent saccharide radicals, R represents an alkyl group and R' represents a hydrogen atom or an alkyl group) in water or a mixed solution of water and alcohol and allowing to stand, mixing further a metal oxide precursor, mixing further a catalyst for converting the metal oxide precursor into a metal oxide, and sintering the gel formed in the previous step. The hydrogen adsorption and storage capacity of the metal oxide nanotubes are extremely good.

    摘要翻译： 螺旋形纤维（日本专利申请2001-239014）用于制备完全新型金属氧化物纳米管，其仅包含金属氧化物。 金属氧化物纳米管仅包含中空圆柱形金属氧化物，其可以含有构成双螺旋的羟基，并且具有包含2至2nm和3至7nm的两个峰值孔径的孔直径分布。 可以使用包括以下步骤的方法获得管：将下述所示的化学式（化学式1）表示的化合物1和下述所示的化学式（化学式1）表示的化合物2 式A和B可以相同或不同，代表糖基，R表示烷基，R'表示氢原子或烷基）在水中或水和醇的混合溶液中并允许静置 ，进一步混合金属氧化物前体，进一步混合将金属氧化物前体转化为金属氧化物的催化剂，并烧结前一步骤中形成的凝胶。 金属氧化物纳米管的氢吸附和储存能力非常好。

    NOX ABSORBING AGENT AND ABSORPTION REDUCTION TYPE CATALYST FOR REMOVING NOX
    130.
    发明公开
    NOX ABSORBING AGENT AND ABSORPTION REDUCTION TYPE CATALYST FOR REMOVING NOX 有权
    NOX吸收剂AGENT，SOWIE吸收 - 减压 - KATALYSATOR ZUR NOX-ENTFERNUNG

    公开(公告)号：EP1321186A1

    公开(公告)日：2003-06-25

    申请号：EP01961322.3

    申请日：2001-09-03

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： YAMASHITA, Tetsuya, C/O TOYOTA JIDOSHA K K ,  TAKESHIMA, Shinichi, C/O TOYOTA JIDOSHA K K ,  TANAKA, Toshiaki, C/O TOYOTA JIDOSHA K K

    IPC分类号： B01J20/06 ,  B01J20/08 ,  B01J23/58

    CPC分类号： B01J23/63 ,  B01D53/8628 ,  B01J21/066 ,  B01J23/58

    摘要： An exhaust gas purifying catalyst capable of exerting excellent NO x purifying capability even at high exhaust gas temperatures, exceeding 500°C, is provided.
    The catalyst is an absorption reduction-type NO x purifying catalyst comprising an NO x absorbent obtained by loading at least one alkali metal or alkaline earth metal on a crystalline ZrO 2 composite oxide having added thereto at least one trivalent rare earth metal or divalent alkaline earth metal. Preferably, aluminum is further supported on the ZrO 2 composite oxide. The NO x absorbent is considered to have an NO x absorption mechanism that an electron released from the alkali metal or the like enters into an oxygen vacancy part of the crystalline ZrO 2 and this oxygen vacancy part functions as a strong base site for donating an electron to an electrophilic component such as NO x .

    摘要翻译： 提供即使在超过500℃的高废气温度下也能够发挥优异的NOx净化能力的废气净化催化剂。 催化剂是吸收还原型NOx净化催化剂，其包含通过在至少一种三价稀土金属或二价碱土金属上加入至少一种碱金属或碱土金属的结晶ZrO 2复合氧化物上而获得的NOx吸收剂。 优选地，在ZrO 2复合氧化物上进一步负载铝。 认为NOx吸收剂具有从碱金属等释放的电子进入结晶ZrO 2的氧空位部的NOx吸收机理，该氧空位部作为向亲电子体供给电子的强碱性部位起作用 组分如NOx。