Wet chemical and plasma methods of forming stable PtPd catalysts
    38.
    发明授权
    Wet chemical and plasma methods of forming stable PtPd catalysts 有权
    湿化学和等离子体方法形成稳定的PtPd催化剂

    公开(公告)号:US09216406B2

    公开(公告)日:2015-12-22

    申请号:US14175894

    申请日:2014-02-07

    Abstract: A nano-particle comprising: an interior region comprising a mixed-metal oxide; and an exterior surface comprising a pure metal. In some embodiments, the mixed-metal oxide comprises aluminum oxide and a metallic pinning agent, such as palladium, copper, molybdenum, or cobalt. In some embodiments, the pure metal at the exterior surface is the same as the metallic pinning agent in the mixed-metal oxide in the interior region. In some embodiments, a catalytic nano-particle is bonded to the pure metal at the exterior surface. In some embodiments, the interior region and the exterior surface are formed using a plasma gun. In some embodiments, the interior region and the exterior surface are formed using a wet chemistry process. In some embodiments, the catalytic nano-particle is bonded to the pure metal using a plasma gun. In some embodiments, the catalytic nano-particle is bonded to the pure metal using a wet chemistry process.

    Abstract translation: 一种纳米颗粒,包括:包含混合金属氧化物的内部区域; 以及包含纯金属的外表面。 在一些实施方案中,混合金属氧化物包括氧化铝和金属钉扎剂,例如钯,铜,钼或钴。 在一些实施方案中,外表面上的纯金属与内部区域中的混合金属氧化物中的金属钉扎剂相同。 在一些实施方案中,催化纳米颗粒在外表面与纯金属结合。 在一些实施例中,使用等离子体枪形成内部区域和外部表面。 在一些实施例中,使用湿式化学方法形成内部区域和外部表面。 在一些实施方案中,使用等离子体枪将催化纳米颗粒结合到纯金属。 在一些实施方案中,使用湿化学方法将催化纳米颗粒结合到纯金属。

    NANOSTRUCTURED METAL OXIDE COMPOSITIONS FOR APPLIED PHOTOCATALYSIS
    39.
    发明申请
    NANOSTRUCTURED METAL OXIDE COMPOSITIONS FOR APPLIED PHOTOCATALYSIS 有权
    用于应用光电子学的纳米结构的金属氧化物组合物

    公开(公告)号:US20150321174A1

    公开(公告)日:2015-11-12

    申请号:US14271985

    申请日:2014-05-07

    Abstract: A nanostructured metal oxide composition comprising hydroxides or oxygen vacancies or both hydroxides and oxygen vacancies on its surface is described. A process for preparing the nanostructured metal oxide composition comprising hydroxides or oxygen vacancies or both hydroxides and oxygen vacancies on its surface, which hydroxides and oxygen vacancies can participate in chemical reactions, which composition is prepared by a method selected from the group of methods comprising: i) controlled thermally induced dehydroxylation of nanostructured metal hydroxide precursors; ii) thermochemical reaction of said nanostructured metal oxide with hydrogen gas; iii) vacuum thermal treatment of said nanostructured metal oxide; and iv) aliovalent doping with a lower oxidation state metal. A photocatalyst comprising a nanostructured metal oxide composition comprising an optimal loading of hydroxides or oxygen vacancies or both hydroxides and oxygen vacancies on its surface, which hydroxides and/or oxygen vacancies can participate in chemical or physical reactions.

    Abstract translation: 描述了包含氢氧化物或氧空位或其表面上的氢氧化物和氧空位的纳米结构金属氧化物组合物。 一种制备纳米结构金属氧化物组合物的方法,其包含氢氧化物或氧空位或其表面上的氢氧化物和氧空位,氢氧化物和氧空位可以参与化学反应,该组合物通过选自以下的方法制备,所述方法包括: i)控制纳米结构金属氢氧化物前体的热诱导脱羟基化; ii)所述纳米结构金属氧化物与氢气的热化学反应; iii)所述纳米结构金属氧化物的真空热处理; 和iv)用较低氧化态金属的二价掺杂。 包含纳米结构金属氧化物组合物的光催化剂,其包含氢氧化物或氧空位的最佳负载或其表面上的氢氧化物和氧空位,所述氢氧化物和/或氧空位可以参与化学或物理反应。

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