caa a22 4500 463233832 CHVBK 20180405153250.0 cr unu---uuuuu 170326e20070601xx s 000 0 eng 10.1007/s10853-006-0876-z doi (NATIONALLICENCE)springer-10.1007/s10853-006-0876-z Study of preparation and magnetic properties of silica-coated cobalt ferrite nanocomposites [Elektronische Daten] [Lijun Zhao, Hua Yang, Yuming Cui, Xueping Zhao, Shouhua Feng] The structure and the magnetic properties of silica-coated cobalt ferrite nanoparticles (80wt% CoFe2O4), prepared by sol-gel method and submitted to thermal treatments in the range 800-1,000°C, were investigated through XRD, FT-IR, TEM and VSM. The effects of thermal treatment temperatures on the structure and magnetic properties of nanoparticles were examined. A silica shell thickness of about 5nm was synthesized on top of cobalt ferrite nanoparticles. The non-crystalline silica confines the growth of cobalt ferrite nanoparticles, i.e., the particle sizes are almost independent of the thermal treatment. Saturation magnetization (Ms) was decreased slightly and coercivity (Hc) was increased, when the non-crystalline silica was coated on the surface of cobalt ferrite nanoparticles. Springer Science+Business Media, LLC, 2007 Zhao Lijun College of Chemistry, Jilin University, 130023, Changchun, P.R. China aut Yang Hua College of Chemistry, Jilin University, 130023, Changchun, P.R. China aut Cui Yuming College of Chemistry, Jilin University, 130023, Changchun, P.R. China aut Zhao Xueping College of Physics, Jilin University, 130023, Changchun, P.R. China aut Feng Shouhua State Key Laboratory of Inorganic Synthesis and Prepartive Chemistry, Jilin University, 130023, Changchun, P.R. China aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/11(2007-06-01), 4110-4114 0022-2461 42:11<4110 2007 42 10853 https://doi.org/10.1007/s10853-006-0876-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-0876-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zhao Lijun College of Chemistry, Jilin University, 130023, Changchun, P.R. China aut NATIONALLICENCE 700 1- Yang Hua College of Chemistry, Jilin University, 130023, Changchun, P.R. China aut NATIONALLICENCE 700 1- Cui Yuming College of Chemistry, Jilin University, 130023, Changchun, P.R. China aut NATIONALLICENCE 700 1- Zhao Xueping College of Physics, Jilin University, 130023, Changchun, P.R. China aut NATIONALLICENCE 700 1- Feng Shouhua State Key Laboratory of Inorganic Synthesis and Prepartive Chemistry, Jilin University, 130023, Changchun, P.R. China aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/11(2007-06-01), 4110-4114 0022-2461 42:11<4110 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer