Nanoparticle synthesis using high-powered pulse-modulated induction thermal plasma
Nanoparticle synthesis using high-powered pulse-modulated induction thermal plasma
复制标题
DOI：
10.1088/0022-3727/43/26/265201
复制
发表时间：
2010-07
期刊：
影响因子：
--
通讯作者：
Yasunori Tanaka;Takeo Nagumo;H. Sakai;Y. Uesugi;Y. Sakai;K. Nakamura
中科院分区：
文献类型：
--
作者：
Yasunori Tanaka;Takeo Nagumo;H. Sakai;Y. Uesugi;Y. Sakai;K. Nakamura
采用高功率脉冲调制感应热等离子体（PMITP）技术合成纳米粒子，研究线圈电流调制对合成纳米粒子的影响。这是第一篇论文，提出了一个总结的结果，二氧化钛纳米粒子的合成使用高功率Ar-O2 PMITP在20千瓦。使用场发射扫描电子显微镜和X射线衍射法分析合成的颗粒。此外，在纳米颗粒合成实验期间使用光学发射光谱来测量TiO光谱并确定TiO在反应室中的时间平均振动和旋转温度。结果表明，PMITP制备的纳米粒子更小，粒径分布更窄。此外，PMITP在等离子体炬下游的反应室中提供了比非调制热等离子体中的此类区域更低的温度区域。
Nanoparticle synthesis was performed using the high-powered pulse-modulated induction thermal plasma (PMITP) technique to study the effect of coil current modulation on synthesized nanoparticles. This is the first paper to present a summary of results of TiO2 nanoparticle synthesis using high-power Ar–O2 PMITP at 20 kW. The synthesized particles were analysed using field emission scanning electron microscopy and x-ray diffractometry. In addition, optical emission spectroscopy was used during nanoparticle synthesis experiments to measure TiO spectra and to determine the time-averaged vibrational and rotational temperatures of TiO in the reaction chamber. The results showed that the PMITP produced smaller nanoparticles and a narrower size distribution of particles. Moreover, PMITP provided a lower temperature region in the reaction chamber downstream of the plasma torch than such regions in non-modulated thermal plasmas.