本发明涉及一种醇热法制备钴锌铁氧体CoxZn1-xFe2O4磁性纳米粉体的方法,包括:(1)在室温下,称取铁盐,钴盐,锌盐,分散到乙二醇溶液中,待完全溶解后加入聚乙二醇(200～1000),再加入无水乙酸钠,搅拌,形成反应液;(2)放入反应釜中,升温至180～220℃,反应8～16h;冷却至室温,用磁铁收集产物,去离子水洗涤产物,...
NaOH共沉淀法制备尖晶石型CoxZn1-xFe2O4纳米晶
以CoSO4、ZnSO4和Fe2(SO4)3为原料,NaOH为沉淀剂,利用化学共沉淀法制备了CoxZn1-xFe2O4纳米晶;通过扫描电子显微镜(SEM)、X射线衍射仪(XRD)和振动样品磁强计(VSM)分别对CoxZn1-xFe2O4纳米晶的形貌、尺寸、结构和磁性能等进行表征.结果表明制备的CoxZn1-xFe2O4均为尖晶石结构,晶粒为球形,粒径在30~60nm之间...
Magnetic and dielectric properties of CoxZn1-xFe2O4 synthesized by metallo-organic decomposition technique. International Journal of Advances in Engineering & Technology, 5(1), 544-554.Sharma, Anshu, Parmar, Kusum, Kotnala R.K. and Negi, N.S., "Magnetic and Dielectric Properties of CoxZn1-...
Structural and magnetic properties of CoxZn1-xFe2O4 nanocrystals synthesized by microwave methodKoseogluY.BaykalA.GozuakF.KavasH.ingentaconnectPolyhedron OxfordKoseoglu, Y., Baykal, A., Gozuak, F. and Kavas, H. (2009) Structural and Magnetic Properties of CoxZn1-xFe2O4 Na- nocrystals ...
Electrical conduction in γ-irradiated and unirradiated Fe 3 O 4 , CdFe 2 O 4 and Co x ZN 1x Fe 2 O 4 (0 x 1) ferrites Mousa.M.A, Summan.A.M, Ahmed.M.A., Electrical conduction in γ-irradiated and unirradiated Fe3O4, Cd Fe2O4 and CoxZn1-xFe2O4 (0 ≤x ≤ ... MA...
Depending on the variation of the Zn2+/Co2+ ratio in the Zn1−xCoxFe2O4 (x=0, 0.2, 0.5, 0.8 and 1.0)-type ferrospinels, the systems showed different activity trends for aniline and phenol methylation using methanol as the alkylating agent. An increase in Zn2+/Co2+ ratio increased ...
Low temperature synthesis of nanosized Mn1−xZnxFe2O4 ferrites and their characterizations Nanosized Mn1−x Zn x Fe2O4 (x = 0, 0·1, 0·3, 0·5, 0·6, 0·7, 0·9) mixed ferrite samples of particle size 2+ ion impurities. Autoclave was employed ... R Iyer,RDV Upadhyay -...
Nazim, S.; Kousar, T.; Shahid, M.; Khan, M.A.; Nasar, G.; Sher, M.; Warsi, M.F. New graphene-CoxZn1-xFe2O4 nano-heterostructures: Magnetically separable visible lightphotocatalytic materials. Ceram. Int. 2016, 42, 7647-7654. [CrossRef]...
The results show that all the samples are pure spinel structure; the obtainted CoxZn1-xFe2O4 particles are spherical and the mean grain size is about 20-40nm. The specific saturation magnetization (σs) and coercive force (Hc) of the samples increase with the increasing content of cobalt ...