Encapsulation of nano particles by surfactant reduction

B. Jeyadevan, Y. Suzuki, K. Tohji, I. Matsuoka

研究成果: Article査読

3 被引用数 (Scopus)

抄録

Stabilization of ferromagnetic transition metal particles under an oxidizing atmosphere would lead to their use in potential applications where ferromagnetic oxide particles are in use now. It is believed that the above could be achieved through encapsulating the metal particles with a material that is stable in the oxidizing atmosphere. In this paper, we propose a novel method to encapsulate the particle with carbon and discuss the results. The particles are primarily coated with a surfactant and the coated particles are placed in an arc-discharge chamber filled with He gas and arc discharged for a specified time. In the above treatment, the He atoms are ionized and the bombardment of the He ions on the surface of the particle reduces the surfactant and leads to encapsulation of the particle. The particles treated using the above method have been characterized with XRD, FTIR, TEM and XPS.

本文言語English
ページ(範囲)54-57
ページ数4
ジャーナルMaterials Science and Engineering A
217-218
DOI
出版ステータスPublished - 1996 10月 30
外部発表はい

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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