Preparation of ultrafine Fe3O4 particles by precipitation in the presence of PVA at high pH

Jiwon Lee, Tetsuhiko Isobe, Mamoru Senna

研究成果: Article査読

399 被引用数 (Scopus)

抄録

Ultrafine magnetite particles of average diameter 4-7 nm were prepared by precipitation in a poly(vinylalcohol) (PVA) aqueous solution. Crystallinity of the particles decreased with increasing PVA concentration, while the morphology and particle sizes remained almost unchanged. The dispersion of the magnetite particles prepared at 1 wt% PVA was particularly stable. The saturation magnetization of the particles was above 50 emu/g, in spite of their small size and low crystallinity compared with conventionally prepared fine magnetite particles.

本文言語English
ページ(範囲)490-494
ページ数5
ジャーナルJournal of Colloid And Interface Science
177
2
DOI
出版ステータスPublished - 1996 2 10

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 生体材料
  • 表面、皮膜および薄膜
  • コロイド化学および表面化学

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