Preparation Of The Composite Materials Of Rare Earth Metal Doped Ferrite-polyaniline And Studies On Their Structure Analysis

Organic and inorganic compound material has the good character of the organic polymer and inorganic materials, but also gives material many excellent characteristics in mechanics, light, electricity and magnetism etc, so it has become the new frontier in current researches. This paper is about the preparation of the composite materials of rare earth metal doped ferrite-polyaniline complex and the studies through XRD, FT-IR, TEM and Magnetic analysis on their structure analysis. This research will further enrich the experimental research results in this field for theoretical study and provide credible experiment basis for future research, so this study has certain theoretical and practical significance. Specific research contents and the results were as follows:1. The preparation of three neodymium doped ferrite-polyaniline complexes, and separately XRD, infrared and transmission electron microscopy, magnetic testing.(1)Ni0.7Zn0.3NdxFe2-xO4was prepared by sol-gel method and polyaniline-Ni0.7Zno.3NdxFe2-xO4was prepared by chemical polymerization. Ferrite features diffraction peak intensity virtually unchanged with the increase of Nd. The changes of Nd content are no obvious effect to crystalline. The FT-IR figure shows that there exsits interaction between ferrite particles and polymer chains. The TEM shows that the sample is spherical shape, and the average size is between75-50nm. The magnetic test data shows that magnetic parameter of the synthesized simple decreased as the barium ferrite content decreased.(2)BaNdxFe12-xO19was prepared by sol-gel method and polyaniline-BaNdxFe12-xO19compound was prepared by chemical polymerization method. XRD results show that the prepared BaNdxFe12-xO19to magnetoplumbite type ferrite, FT-IR and TEM show the polyaniline-BaNdxFe12-xO19wrapped well and around55nm in diameter, hexagonal solid structure for the chain structure of the polyaniline. Determination of the product by the deposition time under the magnetic conditions, the determination found in Nd doped barium ferrite magnetic well, by the compound, the deposition time of the product increases, the magnetic force decreases and reaches purpose of the composite. (3)Mn0.4Zn0.6NdxFe2-xO4was synthesized by chemical deposition method and Nd polyaniline-Mn0.4Zn0.6NdxFe2-xO4was synthesized in chemical polymerization. XRD used to study the phase composition and microcosmic morphology of the nanoparticles, respectively. The results showed that all the synthesized particles were Nd doped manganese-zinc ferrite nanocrystal with Magnesium spinel growing completely. As x increasing the size of Nd-doped Mn-Zn ferrite particle is also decrescence and the higher the temperature the more pure phase samples. The results of FT-IR confirmed that there was interaction between ferrite particles and polymer chains. The sample is sphere by TEM, and the size of samples probably around100nm. The magnetic test confirmation of sample, the magnetization of PANI-ferrite nanocomposites was lower than that of pure ferrite under applied magnetic field.2. The preparation of three lanthanum doped ferrite-polyaniline complexes, and separately XRD, infrared and transmission electron microscopy, magnetic testing.(1)Ni0.5Zn0.5LaxFe2-xO4complexes were prepared by sol-gel method and La doped NiZn ferrite/PANI was synthesized in chemical polymerization. XRD analysis reveals along with the increase of La, the features diffraction peak intensity of ferrite is abate. Lanthanated content changes have influence on the ferrite to crystalline. But the effect is not obvious. The results of FT-IR confirmed that there was interaction between ferrite particles and polymer chains. The sample is sphere by TEM, the average particle size is between70-150nm. The magnetic test confirmation of sample, the magnetization of PANI-ferrite nanocomposites were lower than that of pure ferrite.(2)BaLaxFei2-xO19was prepared by sol-gel precipitation route, polyaniline/BaLaxFe12-xO19nanocomposite was doped through the solution polymerization. XRD shows that the samples are good crystalloid. They are single magnetic lead stone type. Along with the increase of La, the particle size decreases. The FT-IR results supported that chemical bonds existed between polyaniline and BaLaxFe12-xO19particle. The TEM showed that complex is spherical shape, and the size is about100nm. The magnetic test confirmation of sample, the magnetizations of PANI-ferrite nanocomposites were lower than that of pure ferrite.(3)Mno.6Zno.4LaxFe2-xO4was prepared by sol-gel precipitation route, polyaniline/Mno.6Zno.4LaxFe2-x04nanocomposite was doped through the solution polymerization. XRD show that:to get the single-phase spinel Mno.6Zno.4LaxFe2-xO4, lanthanated doped quantity (x) should be less than0.1. FITR confirmed that the sample is Mn0.6Zn0.4LaxFe2-xO4particle, the results supported that chemical bonds existed between polyaniline and Mn0.6Zn0.4LaxFe2-xO4particle. It was observed that the sample was flake by TEM, and the size of samples probably around62.5nm. The magnetic test data showed that magnetic parameter of the synthesized simple decreased as the barium ferrite content decreased.