Citation:
GAN Zhi-ping, GUAN Jian-guo. Chemical Self-assembly Route to Fabricate Hollow Barium Ferrite Submicrospheres[J]. Acta Physico-Chimica Sinica,
;2006, 22(02): 189-192.
doi:
10.3866/PKU.WHXB20060212
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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.
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