神马文学网Preparation and Magnetic Properties of Cobalt...
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Preparation and Magnetic Properties of Cobalt Doping Mn-Zn Ferrite Nanoparticles
Youxian Zhang Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environmental Science, Lanzhou University, Lanzhou 730000, PR China,zhangyx@lzu.edu.cn
Yali Huang Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environmental Science, Lanzhou University, Lanzhou 730000, PR China
Jiaona Fan Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environmental Science, Lanzhou University, Lanzhou 730000, PR China
Xiaolong Fan Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environmental Science, Lanzhou University, Lanzhou 730000, PR China
Xueqin An Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environmental Science, Lanzhou University, Lanzhou 730000, PR China
Abstract
The Mn—Zn ferrite nanoparticles (CoxMn0.5Zn 0.5-xFe2O4, X = 0, 0.03, 0.12, 0.24, and 0.34) were prepared by a microemulsion technique and characterized by energy dispersive spectroscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM), vibrating sample magnetometer (VSM), etc. The XRD patterns indicate the presence of single-phase spinel ferrite in the samples. The particle size was estimated by the XRD method as well as from the micrograph taken by SEM. The magnetic properties of the samples were studied by VSM that showed superparamagnetic behaviors. Doping Co into the Mn—Zn ferrite can yield these superparamagnetic nanoparticles with narrow distribution of particle size so that their magnetic properties are improved.
Youxian Zhang Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environmental Science, Lanzhou University, Lanzhou 730000, PR China,zhangyx@lzu.edu.cn
Yali Huang Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environmental Science, Lanzhou University, Lanzhou 730000, PR China
Jiaona Fan Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environmental Science, Lanzhou University, Lanzhou 730000, PR China
Xiaolong Fan Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environmental Science, Lanzhou University, Lanzhou 730000, PR China
Xueqin An Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environmental Science, Lanzhou University, Lanzhou 730000, PR China
Abstract
The Mn—Zn ferrite nanoparticles (CoxMn0.5Zn 0.5-xFe2O4, X = 0, 0.03, 0.12, 0.24, and 0.34) were prepared by a microemulsion technique and characterized by energy dispersive spectroscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM), vibrating sample magnetometer (VSM), etc. The XRD patterns indicate the presence of single-phase spinel ferrite in the samples. The particle size was estimated by the XRD method as well as from the micrograph taken by SEM. The magnetic properties of the samples were studied by VSM that showed superparamagnetic behaviors. Doping Co into the Mn—Zn ferrite can yield these superparamagnetic nanoparticles with narrow distribution of particle size so that their magnetic properties are improved.
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