Nickel Nanoparticles Formation from Solution Plasma Using Edge-Shielded Electrode

概要

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Because of the easy massproduction, synthesis of metallic nanoparticles from a solution plasma is an attractive method. However, a solution plasma produces a highly inhomogeneous electric field via transition tofull-plasma, and the products are partially oxidized and agglomerated, with a wide size-distribution. Here, we show a simple method of suppressing oxidationof products. An electrode tip was shield by a glass tube and a voltage of up to 180 V was applied with the electrolyte of 0.1 M NaOH solution. Significantly, the edge-shield was quite effective for maintaining artially glow discharge. The results were (1) surface temperature of the electrode less than 100 °C, (2) mainphase of metallic nickel evaluated by XRD, and (3) nanoparticles of an average size of 220 nm. These results showed the potential for an application to theproduction of nanoparticles.
Springerの論文
2011-10-00