A novel approach for preparation of γ-Fe2O3 nanoparticles

Successive reduction-oxidation in reverse micelles

Hironori Iida, Harumi Takada, Takuya Nakanishi, Tetsuya Osaka

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A novel approach for the preparation of γ-Fe2O3 nanoparticles based on successive reduction-oxidation in reverse micelles is reported. In this method, γ-Fe2O3 nanoparticles are formed via chemical reduction of ferrous or ferric ions by a reducing agent such as NaBH4, N2H4, or NaH2PO 2, followed by successive oxidation in reverse micelles. The generation of nanoparticles is caused by the "electroless deposition" in reverse micelles, and it was found that the crystal structure and the magnetic properties of the products depend on the redox potential of the reducing agent and the catalytic activity of the metal surface. In the case using NaBH4 as a reducing agent, highly crystalline γ-Fe 2O3 nanoparticles were successfully synthesized.

Original languageEnglish
Title of host publicationProceedings - Electrochemical Society
Pages325-329
Number of pages5
VolumePV 2004-23
Publication statusPublished - 2006
Event206th ECS Meeting - Honolulu, HI
Duration: 2004 Oct 52004 Oct 8

Other

Other206th ECS Meeting
CityHonolulu, HI
Period04/10/504/10/8

Fingerprint

Micelles
Reducing agents
Nanoparticles
Oxidation
Electroless plating
Catalyst activity
Magnetic properties
Crystal structure
Crystalline materials
Ions
Metals

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Iida, H., Takada, H., Nakanishi, T., & Osaka, T. (2006). A novel approach for preparation of γ-Fe2O3 nanoparticles: Successive reduction-oxidation in reverse micelles. In Proceedings - Electrochemical Society (Vol. PV 2004-23, pp. 325-329)

A novel approach for preparation of γ-Fe2O3 nanoparticles : Successive reduction-oxidation in reverse micelles. / Iida, Hironori; Takada, Harumi; Nakanishi, Takuya; Osaka, Tetsuya.

Proceedings - Electrochemical Society. Vol. PV 2004-23 2006. p. 325-329.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Iida, H, Takada, H, Nakanishi, T & Osaka, T 2006, A novel approach for preparation of γ-Fe2O3 nanoparticles: Successive reduction-oxidation in reverse micelles. in Proceedings - Electrochemical Society. vol. PV 2004-23, pp. 325-329, 206th ECS Meeting, Honolulu, HI, 04/10/5.
Iida H, Takada H, Nakanishi T, Osaka T. A novel approach for preparation of γ-Fe2O3 nanoparticles: Successive reduction-oxidation in reverse micelles. In Proceedings - Electrochemical Society. Vol. PV 2004-23. 2006. p. 325-329
Iida, Hironori ; Takada, Harumi ; Nakanishi, Takuya ; Osaka, Tetsuya. / A novel approach for preparation of γ-Fe2O3 nanoparticles : Successive reduction-oxidation in reverse micelles. Proceedings - Electrochemical Society. Vol. PV 2004-23 2006. pp. 325-329
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