Acta Phys. -Chim. Sin. ›› 2006, Vol. 22 ›› Issue (02): 189-192.doi: 10.3866/PKU.WHXB20060212
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GAN Zhi-ping; GUAN Jian-guo
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Abstract: A novel strategy of preparing of hollow barium ferrite submicrospheres based on chemical self-assembly technique is described in this paper. That is, using poly (styrene-co-acrylic acid) latexes as template, the chemical interaction between the carboxyl groups on the latex surface and the hydroxyl groups on the surface of barium ferrite precursor prepared in poly-glycol solution results in the formation of poly(styrene-co-acrylic acid)/ barium ferrite precursors core-shell nanocomposite particles. Heat-treatment of the composite particles by upgrading temperature to 750 ℃ leads to hollow barium ferrite submicrospheres with BaFe12O19 crystal phase mainly. The products might find significant applications in such fields as radar absorbers or electro-magneto-rheological fluids.
Key words: Hollow spheres, Barium ferrite, Chemical self-assembly, Poly(styrene-co-acrylic acid), Core-shell nanocomposite particles
GAN Zhi-ping; GUAN Jian-guo. Chemical Self-assembly Route to Fabricate Hollow Barium Ferrite Submicrospheres[J].Acta Phys. -Chim. Sin., 2006, 22(02): 189-192.
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URL: http://www.whxb.pku.edu.cn/EN/10.3866/PKU.WHXB20060212
http://www.whxb.pku.edu.cn/EN/Y2006/V22/I02/189
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