Preparation of transition metal nanoparticles and surfaces modified with (co)polymers synthesized by RAFT
    75.
    发明申请
    Preparation of transition metal nanoparticles and surfaces modified with (co)polymers synthesized by RAFT 有权
    制备用RAFT合成的(共)聚合物改性的过渡金属纳米粒子和表面

    公开(公告)号:US20030199653A1

    公开(公告)日:2003-10-23

    申请号:US10400346

    申请日:2003-03-27

    Abstract: A new, facile, general one-phase method of generating thio-functionalized transition metal nanoparticles and surfaces modified by (co)polymers synthesized by the RAFT method is described. The method includes the stops of forming a (co)polymer in aqueous solution using the RAFT methodology, forming a colloidal transition metal precursor solution from an appropriate transition metal; adding the metal precursor solution or surface to the (co)polymer solution, adding a reducing agent into the solution to reduce the metal colloid in situ to produce the stabilized nanoparticles or surface, and isolating the stabilized nanoparticles or surface in a manner such that aggregation is minimized. The functionalized surfaces generated using these methods can further undergo planar surface modifications, such as functionalization with a variety of different chemical groups, expanding their utility and application.

    Abstract translation: 描述了产生硫官能化过渡金属纳米颗粒和通过RAFT方法合成的(共)聚合物改性的表面的新的,简单的通用单相方法。 该方法包括使用RAFT方法在水溶液中形成(共)聚合物的步骤,从合适的过渡金属形成胶态过渡金属前体溶液; 将金属前体溶液或表面添加到(共)聚合物溶液中,向溶液中加入还原剂以原位还原金属胶体以产生稳定的纳米颗粒或表面,并以这样的方式分离稳定的纳米颗粒或表面,使得聚集 被最小化。 使用这些方法产生的功能化表面可以进一步进行平面表面改性,例如用各种不同化学基团进行功能​​化,扩展它们的用途和应用。

    Dissolution and decontamination process
    77.
    发明申请
    Dissolution and decontamination process 有权
    溶解和去污过程

    公开(公告)号:US20020150196A1

    公开(公告)日:2002-10-17

    申请号:US10050915

    申请日:2002-01-22

    CPC classification number: C01G55/00 C23F1/40 G21F9/001

    Abstract: The present invention concerns a process for dissolving ruthenium deposits that are present on a surface and a process for decontaminating the internal circuits of nuclear fuel reprocessing plants using the said dissolution process. The process according to the invention comprises bringing the said surface into contact with an aqueous solution of perruthenate, with the said aqueous solution having a pH equal to or greater than 12, so that the ruthenium is oxidised.

    Abstract translation: 本发明涉及一种用于溶解存在于表面上的钌沉积物的方法和使用所述溶解过程来净化核燃料后处理装置的内部回路的方法。 根据本发明的方法包括使所述表面与钌酸盐水溶液接触,所述水溶液具有等于或大于12的pH,使得钌被氧化。

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