学術雑誌論文

学術雑誌論文

text

Advanced Engineering Materials. 2026, p. e71261

Homogeneous Silicon Nanoparticle Formation by Plasma Flash Evaporation With the In‐Reactor Axial Cyclone and Its Quantification With Transfer Entropy

Wiley

英語

text

2026-09-15

https://doi.org/10.1002/adem.71261

This is the peer reviewed version of the following article: Dougakiuchi Masashi, Tanaka Toshimi, Takeuchi Akira, et al. Homogeneous Silicon Nanoparticle Formation by Plasma Flash Evaporation With the In‐Reactor Axial Cyclone and Its Quantification With Transfer Entropy. Advanced Engineering Materials, e71261 (2026), which has been published in final form at https://doi.org/10.1002/adem.71261. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.

Well-defined particle size distribution is an ultimate goal of nanoparticle production by plasma flash evaporation. To generate uniform Si nanoparticles, in the present work, we have attempted to homogenize the gas condensation paths by rectifying the plasma flow with an installation of axial flow cyclone in the plasma reactor. While coarse particles were removed by the cyclone effect, the nanoparticles produced are found to become finer and more uniform in particle size distribution. Computational fluid dynamics analysis has shown that the gas streamlines are uniformly ordered, and the gas temperature decreases monotonically in a shorter period by installing the cyclone. Transfer entropy was employed to evaluate quantitatively the degree of the homogenization of the gas condensation path, and it exhibited the increased similarity of the streamlines and reduction in half of its variation. These clearly suggest that the gas streamline rectification by the cyclone leads effectively to the uniform nanoparticle formation. The effect of the homogenized Si nanoparticles was evident as anode in a lithium-ion battery: the battery initial capacity loss speed is reduced in nearly half, and the battery capacity retention is appreciably improved by the installation of the cyclones.

106529

Homogeneous Silicon Nanoparticle Formation by Plasma Flash Evaporation With the In‐Reactor Axial Cyclone and Its Quantification With Transfer Entropy

Wiley

英語

2026-09-15

Advanced Engineering Materials

e71261

https://doi.org/10.1002/adem.71261

https://hdl.handle.net/11094/106529