A novel approach for preparation of γ-Fe2O3 nanoparticles: Successive reduction-oxidation in reverse micelles

Hironori Iida; Harumi Takada; Takuya Nakanishi; Tetsuya Osaka

A novel approach for preparation of γ-Fe₂O₃ nanoparticles: Successive reduction-oxidation in reverse micelles

Hironori Iida^*, Harumi Takada, Takuya Nakanishi, Tetsuya Osaka

^*この研究の対応する著者

研究成果: Conference contribution

抄録

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.

本文言語	English
ホスト出版物のタイトル	Magnetic Materials, Processes, and Devices VIII - Proceedings of the International Symposium
ページ	325-329
ページ数	5
出版ステータス	Published - 2006 12月 1
イベント	206th ECS Meeting - Honolulu, HI, United States 継続期間: 2004 10月 5 → 2004 10月 8

出版物シリーズ

名前	Proceedings - Electrochemical Society
巻	PV 2004-23

Conference

Conference	206th ECS Meeting
国/地域	United States
City	Honolulu, HI
Period	04/10/5 → 04/10/8

ASJC Scopus subject areas

工学（全般）

他のファイルとリンク

引用スタイル

A novel approach for preparation of γ-Fe₂O₃ nanoparticles: Successive reduction-oxidation in reverse micelles. / Iida, Hironori; Takada, Harumi; Nakanishi, Takuya その他.
Magnetic Materials, Processes, and Devices VIII - Proceedings of the International Symposium. 2006. p. 325-329 (Proceedings - Electrochemical Society; Vol. PV 2004-23).

研究成果: Conference 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 Magnetic Materials, Processes, and Devices VIII - Proceedings of the International Symposium. Proceedings - Electrochemical Society, vol. PV 2004-23, pp. 325-329, 206th ECS Meeting, Honolulu, HI, United States, 04/10/5.

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AB - 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.

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