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1998•Journal of the American Ceramic SocietyOpen access

Microwave‐Hydrothermal Synthesis of Nanophase Ferrites

Sridhar Komarneni, Maria Cristina D'Arrigo, Cristina Leonelli, Gian Carlo Pellacani, Hiroaki Katsuki

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Abstract

This paper reports the synthesis of technologically important ferrites such as ZnFe 2 O 4 , NiFe 2 O 4 , MnFe 2 O 4 , and CoFe 2 O 4 by using novel microwave‐hydrothermal processing. Nanophase ferrites with high surface areas, in the range of 72‐247m 2 /g, have been synthesized in a matter of a few minutes at temperatures as low as 164°C. The rapid synthesis of nanophase ferrites via an acceleration of reaction rates under microwave‐hydrothermal conditions is expected to lead to energy savings.

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What this paper is about

This paper reports the synthesis of technologically important ferrites such as ZnFe 2 O 4 , NiFe 2 O 4 , MnFe 2 O 4 , and CoFe 2 O 4 by using novel microwave‐hydrothermal processing. Nanophase ferrites with high surface areas, in the range of 72‐247m 2 /g, have been synthesized in a matter of a few minutes at temperatures as low as 164°C. The rapid synthesis of nanophase ferrites via an acceleration of reaction rates under microwave‐hydrothermal conditions is expected to lead to energy savings.

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Available abstract

This paper reports the synthesis of technologically important ferrites such as ZnFe 2 O 4 , NiFe 2 O 4 , MnFe 2 O 4 , and CoFe 2 O 4 by using novel microwave‐hydrothermal processing. Nanophase ferrites with high surface areas, in the range of 72‐247m 2 /g, have been synthesized in a matter of a few minutes at temperatures as low as 164°C. The rapid synthesis of nanophase ferrites via an acceleration of reaction rates under microwave‐hydrothermal conditions is expected to lead to energy savings.

Key concepts: Hydrothermal circulation, Hydrothermal synthesis, Microwave, Materials science, Chemical engineering, Ferrite (magnet), Mineralogy, Nanotechnology

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