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Preparation of acicular α-Fe nanoparticles in a lamellar liquid crystalline phase

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2 Author(s)
Jianping Chen ; Center for Mater. for Inf. Technol., Alabama Univ., Tuscaloosa, AL, USA ; Nikles, D.E.

Acicular α-Fe nanoparticles were prepared by sodium borohydride reduction of ferrous chloride in the presence of the liquid crystalline system, C12EO4/water. The shape of the acicular particles was templated by the colloid and a magnetic field. The acicular particles obtained from the lamellar phase were 50~150 nanometers long and 5 nanometers wide. The product also included some spherical particles of 10~15 nanometers in diameter. The saturation magnetization was 94 emu/g and the coercivity was 420 Oe

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Magnetics, IEEE Transactions on  (Volume:32 ,  Issue: 5 )