The effect of 3-aminopropyltrimethoxysilane on the formation of NiFe2O4/SiO2 nanocomposites |
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| Authors: | Hongxia Wang Wei Zhang Faling Zhang Yuan Cao Wenhui Su |
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| Institution: | 1. Department of Applied Physics, Center for Condensed Matter Science and Technology, Harbin Institute of Technology, Harbin 150001, PR China;2. Department of Chemistry, Harbin Normal University, Harbin 150025, PR China |
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| Abstract: | NiFe2O4/SiO2 nanocomposites were prepared using a sol–gel method with the addition of 3-aminopropyltrimethoxysilane (APS). Different phases and morphologies of NiFe2O4/SiO2 nanocomposites were obtained when different amounts of APS were used. The structural properties of the products were examined by X-ray diffraction (XRD) and transmission electron microscopy (TEM). Sheet-like morphology was observed at higher molar ratio of APS to NiFe2O4, while spherical NiFe2O4/SiO2 nanoparticles separated from each other were formed at lower molar ratio of APS to NiFe2O4. The magnetic properties of the nanocomposites were also investigated, indicating that the interparticle interactions exhibit strong dependence on the molar ratio of APS to NiFe2O4. |
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| Keywords: | 78 67 Bf 61 46 +w 81 16 Dn |
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