Sub 5 nm Fe3O4 nanocrystals via coprecipitation method

Jun Hua Wu, Seung Pil Ko, Hong Ling Liu, Myung Hwa Jung, Ju Hun Lee, Jae Seon Ju, Young-geun Kim

Research output: Contribution to journalArticle

55 Citations (Scopus)

Abstract

Magnetite nanocrystals of 2-4 nm were synthesized by a chemical coprecipitation method, by which the particle size was controlled by the reaction temperature. The nanocrystals were investigated by XRD, TEM/HRTEM, VSM and SQUID. It is found that the nanocrystals reveal well-defined superparamagnetic behavior before and after annealing, while the observation of the distinct lattices manifest the high crystallinity of the ultrasmall particles.

Original languageEnglish
Pages (from-to)268-272
Number of pages5
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Volume313-314
DOIs
Publication statusPublished - 2008 Feb 1

Fingerprint

Coprecipitation
Nanocrystals
nanocrystals
Ferrosoferric Oxide
SQUIDs
Magnetite
magnetite
crystallinity
Particle size
Annealing
Transmission electron microscopy
transmission electron microscopy
annealing
Temperature
temperature

Keywords

  • Magnetic
  • Magnetite
  • Nanocrystals
  • Superparamagnetic

ASJC Scopus subject areas

  • Colloid and Surface Chemistry
  • Physical and Theoretical Chemistry

Cite this

Sub 5 nm Fe3O4 nanocrystals via coprecipitation method. / Wu, Jun Hua; Ko, Seung Pil; Liu, Hong Ling; Jung, Myung Hwa; Lee, Ju Hun; Ju, Jae Seon; Kim, Young-geun.

In: Colloids and Surfaces A: Physicochemical and Engineering Aspects, Vol. 313-314, 01.02.2008, p. 268-272.

Research output: Contribution to journalArticle

Wu, Jun Hua ; Ko, Seung Pil ; Liu, Hong Ling ; Jung, Myung Hwa ; Lee, Ju Hun ; Ju, Jae Seon ; Kim, Young-geun. / Sub 5 nm Fe3O4 nanocrystals via coprecipitation method. In: Colloids and Surfaces A: Physicochemical and Engineering Aspects. 2008 ; Vol. 313-314. pp. 268-272.
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