纳秒脉冲放电等离子体制备铁纳米颗粒的研究(英文)

Preparation of Iron Nanoparticles Using Nanosecond Pulsed Plasma

针对纳米颗粒的产生提出了一项新技术,该技术基于大气压非平衡等离子体条件下挥发性物质的分解以及纳秒脉冲放电等离子体。大气压短脉冲放电等离子体具有许多突出特点,利用纳秒脉冲电源,采用大气压下等离子体射流的方式,对混有二茂铁的乙醇溶液进行了放电反应研究,成功制备了纳米铁颗粒。其结果表明,对于制备的纳米铁颗粒,采用气相样本其平均粒径为10～20 nm,采用液相样本其平均粒径为20～70 nm。

A new technique was proposed for the production of nanoparticles,based on the dissociation of a volatile precursor in an atmospheric pressure,non-equilibrium(cold) plasma.The plasma was produced by a nanosecond pulse discharge.An atmospheric pressure short-pulse discharge plasma has many outstanding features.By nanosecond pulse power,a mixture of ferrocene in ethanol solution was investigated by atmospheric pressure plasma jet.Iron nanoparticles were produced.The results show that the average diameter of iron nanoparticles is around 10～20 nm for gas sample bat 20～70 nm for liquid sample.