Single-crystal MgO hollow nanospheres formed in RF impulse discharge plasmas

Satoru Iizuka; Takumasa Muraoka

doi:10.1155/2012/691874

Single-crystal MgO hollow nanospheres formed in RF impulse discharge plasmas

Satoru Iizuka, Takumasa Muraoka

ENG - Electrical Engineering

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

Spherical MgO nanoparticles with a hollow inside, that is, MgO hollow nanospheres, were created in Ar/O ₂ plasma produced by radio frequency (RF) impulse discharge using a Mg rod electrode. The hollow nanospheres were found on the SiO ₂ plates placed near the powered Mg electrode. The electron refraction pattern showed that each nanosphere was made of a single crystal of MgO. Since the shape was spherical, these nanoparticles seemed to be created during the levitation in the plasma without touching any walls. The formation mechanism with a quasiliquid cooling model was also discussed.

Original language	English
Article number	691874
Journal	Journal of Nanomaterials
Volume	2012
DOIs	https://doi.org/10.1155/2012/691874
Publication status	Published - 2012

ASJC Scopus subject areas

Materials Science(all)

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abstract = "Spherical MgO nanoparticles with a hollow inside, that is, MgO hollow nanospheres, were created in Ar/O 2 plasma produced by radio frequency (RF) impulse discharge using a Mg rod electrode. The hollow nanospheres were found on the SiO 2 plates placed near the powered Mg electrode. The electron refraction pattern showed that each nanosphere was made of a single crystal of MgO. Since the shape was spherical, these nanoparticles seemed to be created during the levitation in the plasma without touching any walls. The formation mechanism with a quasiliquid cooling model was also discussed.",

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AB - Spherical MgO nanoparticles with a hollow inside, that is, MgO hollow nanospheres, were created in Ar/O 2 plasma produced by radio frequency (RF) impulse discharge using a Mg rod electrode. The hollow nanospheres were found on the SiO 2 plates placed near the powered Mg electrode. The electron refraction pattern showed that each nanosphere was made of a single crystal of MgO. Since the shape was spherical, these nanoparticles seemed to be created during the levitation in the plasma without touching any walls. The formation mechanism with a quasiliquid cooling model was also discussed.

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Single-crystal MgO hollow nanospheres formed in RF impulse discharge plasmas

Abstract

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