Molten salt growth and magnetic properties of octahedral CoFe2O4 crystals: effects of synthesis conditions

Guangbin Ji; Xiaohui Lin; Yanyan Sun; Syed Ahmed Ali Trimizi; Hailin Su; Youwei Du

doi:10.1039/C1CE05459G

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Molten salt growth and magnetic properties of octahedral CoFe₂O₄ crystals: effects of synthesis conditions†

Guangbin Ji,*^a Xiaohui Lin,^a Yanyan Sun,^a Syed Ahmed Ali Trimizi,^a Hailin Su^b and Youwei Du^c

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* Corresponding authors

^a College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, P. R. China
E-mail: gbji@nuaa.edu.cn
Fax: +86-25-5211-2626
Tel: +86-25-5211-2902

^b School of Materials Science and Engineering, Hefei University of Technology, Hefei, P. R. China

^c Laboratory of Solid State Microstructures, Nanjing University, Nanjing, P. R. China

Abstract

Molten salts have been reported to be excellent media for preparation of crystals with special morphology. Via the molten salt synthesis (MSS) route, well defined octahedral CoFe₂O₄ crystals with the side length of about 0.5–1.5 μm were obtained in a series of molten salt systems, using superfine CoFe₂O₄ particles pre-synthesized through the hydrothermal process as the precursor. It was found that the calcining temperature, the reaction time, as well as the salt species and the content could significantly affect the crystallization habit and morphology of CoFe₂O₄ crystals. The magnetic test revealed that the synthesis conditions also had a remarkable influence on the magnetic parameters of the products.

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Article information

DOI: https://doi.org/10.1039/C1CE05459G
Article type: Paper
Submitted: 18 Apr 2011
Accepted: 25 Jul 2011
First published: 25 Aug 2011

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CrystEngComm, 2011,13, 6451-6456

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Molten salt growth and magnetic properties of octahedral CoFe₂O₄ crystals: effects of synthesis conditions

G. Ji, X. Lin, Y. Sun, S. A. Ali Trimizi, H. Su and Y. Du, CrystEngComm, 2011, 13, 6451 DOI: 10.1039/C1CE05459G

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