Process for preparing superparamagnetic transition metal nanoparticles
    2.
    发明申请
    Process for preparing superparamagnetic transition metal nanoparticles 审中-公开
    制备超顺磁性过渡金属纳米粒子的方法

    公开(公告)号:US20070085053A1

    公开(公告)日:2007-04-19

    申请号:US11250336

    申请日:2005-10-14

    IPC分类号: C01G49/08

    摘要: A process for preparing superparamagnetic transition metal nanoparticles by introducing into a gas stream a hydrocarbon and a transition metal carboxyl wherein the transition metal carbonyl is introduced downstream from the hydrocarbon; wherein at the point of introduction of the hydrocarbon the gas stream is in the form of a plasma, and wherein at the point of introduction of the transition metal carbonyl the gas stream is at a temperature of at least 1000° C.; followed by quenching to form carbon-coated transition metal nanoparticles; and wherein the gas stream consists essentially of at least one inert gas and hydrogen.

    摘要翻译: 一种制备超顺磁性过渡金属纳米颗粒的方法,该方法是将烃和过渡金属羧基引入气流中,其中过渡金属羰基被引入烃的下游; 其中在烃的引入点,气流为等离子体的形式,并且其中在引入过渡金属羰基的点处,气流的温度为至少1000℃。 然后淬火以形成碳涂覆的过渡金属纳米颗粒; 并且其中气流基本上由至少一种惰性气体和氢气组成。