Production of magnetic iron oxide nanoparticles by using graphite arc discharge in Fe(OH) 3 colloidal solution

Kiminobu Imasaka, Yusuke Kanatake, Junya Suehiro, Masanori Hara

Research output: Contribution to journalArticle

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Abstract

In this study, magnetic iron oxide nanoparticles were produced by thermal treatment of Fe(OH) 3 colloidal solution after graphite arc discharge in the solution. X-ray diffraction (XRD) pattern of the heat-treated powders showed that magnetic iron oxide nanoparticles (γ-Fe 2O 3 or Fe 3O 4) were produced by the phase transformation from α-Fe 2O 3 at the thermal treatment temperature over 500°C. The XRD pattern also indicated that the graphite powders produced by the arc discharge were contained in the Fe(OH) 3 colloidal solution, suggesting that the graphite powders contributed to the reduction process of α-Fe 2O 3.

Original languageEnglish
Pages (from-to)349-354
Number of pages6
JournalIEEJ Transactions on Fundamentals and Materials
Volume126
Issue number5
DOIs
Publication statusPublished - May 12 2006

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Iron oxides
Discharge (fluid mechanics)
Graphite
Nanoparticles
Powders
Diffraction patterns
Heat treatment
X ray diffraction
Phase transitions
Temperature

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Cite this

Production of magnetic iron oxide nanoparticles by using graphite arc discharge in Fe(OH) 3 colloidal solution. / Imasaka, Kiminobu; Kanatake, Yusuke; Suehiro, Junya; Hara, Masanori.

In: IEEJ Transactions on Fundamentals and Materials, Vol. 126, No. 5, 12.05.2006, p. 349-354.

Research output: Contribution to journalArticle

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