Effect of Porous Structure on the Magnetic Properties of NixMgyZn1−x-yFe2O4 Magnetic Materials
QI Xin1, ZHOU Xin1, SHU Di1, ZHAO Jing-Jing1, WANG Wei1, CHEN Juan2**
1Department of Physics and Electronics, Beijing University of Chemical Technology, Beijing 100029 2Department of Information Science and Technology, Beijing University of Chemical Technology, Beijing 100029
Effect of Porous Structure on the Magnetic Properties of NixMgyZn1−x-yFe2O4 Magnetic Materials
QI Xin1, ZHOU Xin1, SHU Di1, ZHAO Jing-Jing1, WANG Wei1, CHEN Juan2**
1Department of Physics and Electronics, Beijing University of Chemical Technology, Beijing 100029 2Department of Information Science and Technology, Beijing University of Chemical Technology, Beijing 100029
摘要We deal with the preparation of NiMgZnFeIII−SO4 layered double hydroxides (LDHs) with the layered precursor method and introduce excessive ZnO into the NiMgZnFeIII−SO4 LDHs to produce NixMgyZn1−x-yFe2O4 ferrites that contain massive ZnO. Then the NixMgyZn1−x-yFe2O4 ferrites are treated with NaOH solution to remove ZnO to produce the porous NixMgyZn1−x-yFe2O4 magnetic material: when y=0, porous NiZnFe2O4 ferrite magnetic materials are obtained; when y≠0, porous NiMgZnFe2O4 ferrite magnetic materials are obtained. From analyses of these two ferrites, their pore−forming mechanism and comparison of their properties before and after they undergo the alkali treatment, we find that after being treated by the NaOH solution, NiZnFe2O4/ NiMgZnFe2O4 have better uniform-structure pores, which will greatly expand their pore volume, widen their application scope and improve their magnetic properties.
Abstract：We deal with the preparation of NiMgZnFeIII−SO4 layered double hydroxides (LDHs) with the layered precursor method and introduce excessive ZnO into the NiMgZnFeIII−SO4 LDHs to produce NixMgyZn1−x-yFe2O4 ferrites that contain massive ZnO. Then the NixMgyZn1−x-yFe2O4 ferrites are treated with NaOH solution to remove ZnO to produce the porous NixMgyZn1−x-yFe2O4 magnetic material: when y=0, porous NiZnFe2O4 ferrite magnetic materials are obtained; when y≠0, porous NiMgZnFe2O4 ferrite magnetic materials are obtained. From analyses of these two ferrites, their pore−forming mechanism and comparison of their properties before and after they undergo the alkali treatment, we find that after being treated by the NaOH solution, NiZnFe2O4/ NiMgZnFe2O4 have better uniform-structure pores, which will greatly expand their pore volume, widen their application scope and improve their magnetic properties.
QI Xin;ZHOU Xin;SHU Di;ZHAO Jing-Jing;WANG Wei;CHEN Juan**
. Effect of Porous Structure on the Magnetic Properties of NixMgyZn1−x-yFe2O4 Magnetic Materials[J]. 中国物理快报, 2011, 28(10): 107502-107502.
QI Xin, ZHOU Xin, SHU Di, ZHAO Jing-Jing, WANG Wei, CHEN Juan**
. Effect of Porous Structure on the Magnetic Properties of NixMgyZn1−x-yFe2O4 Magnetic Materials. Chin. Phys. Lett., 2011, 28(10): 107502-107502.
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