Stable suspension of crystalline Fe 3O 4 nanoparticles from in situ hot-fluid annealing

Mohammed J. Meziani, Ping Liu, Pankaj Pathak, Jun Lin, Saumitra K. Vajandar, Lawrence F. Allard, Ya Ping Sun

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

Crystalline Fe 3O 4 nanoparticles were prepared via chemical precipitation in reverse micellar cavities in a microemulsion, followed by in situ thermal annealing of the microemulsion at 150°C. A valuable feature of the annealing is that the physical properties of the nanoparticles are preserved in the crystallization process, and the resulting crystalline Fe 3O 4 nanoparticles remain in stable suspensions. The method thus allows the control of average sizes in the final crystalline nanoparticles by varying the initial microemulsion parameters. Results from the characterization of the nanoparticle samples are presented and discussed.

Original languageEnglish
Pages (from-to)1539-1541
Number of pages3
JournalIndustrial and Engineering Chemistry Research
Volume45
Issue number4
DOIs
StatePublished - Feb 15 2006
Externally publishedYes

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