نتایج جستجو برای: nickel zinc ferrite

تعداد نتایج: 111244  

2013
Anuj Jain Ravi Kant Baranwal Ajaya Bharti Z. Vakil C. S. Prajapati

Nanostructured zinc-copper mixed ferrite was synthesized using sol-gel method. XRD patterns of different compositions of zinc-copper ferrite, Zn(1-x)Cu(x)Fe2O4 (x = 0.0, 0.25, 0.50, 0.75), revealed single phase inverse spinel ferrite in all the samples synthesized. With increasing copper concentration, the crystallite size was found to be increased from 28 nm to 47 nm. The surface morphology of...

Journal: :Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2013
Jitendra Pal Singh Gagan Dixit R C Srivastava Puneet Negi H M Agrawal Ravi Kumar

Present work aims to investigate effect of 100 MeV oxygen ion irradiation on the vibrational modes of zinc ferrite nanoparticles. Nanosize zinc ferrite systems of different crystallite size ranging from 12-62 nm were irradiated at the fluence of 1×10(13) and 5×10(13) ions/cm(2). High resolution transmission electron micrograph study indicates the structural disorder induced by ion irradiation. ...

2012
Eiichiro Matsubara Kaneharu Okuda Yoshio Waseda Toshihiko Saito

The atomic structure of nanometer-sized zinc ferrite particles has been studied with the anomalous x-ray scattering (AXS) method as well as the ordinary x-ray diffraction. The analysis of the peak broadening indicated that little microstrain exists in these nanometer-sized particles, and the average size of the particles is estimated to be 4 nm. Since the ratio of atoms located on the surface i...

2008
E. Manova

Iron–nickel spinel oxide NiFe2O4 nanoparticles have been prepared by the combination of chemical precipitation and subsequent mechanical milling. For comparison, their analogue obtained by thermal synthesis is also studied. Phase composition and structural properties of iron–nickel oxides are investigated by X-ray diffraction and Mössbauer spectroscopy. Their catalytic behavior in methanol deco...

Background and Objectives: Heavy metals are the most common contaminants in industrial wastewater. Cadmium is important due to its toxicity and harmful effects on human beings. The aim of this study was to evaluate the removal of cadmium from aqueous solutions by nickel ferrite-titanium oxide nanocomposite. Materials and Methods: This experimental – laboratory study was carried out in a ...

Journal: :journal of nanostructures 2012
r. raeisi shahraki m. ebrahimi

superparamagnetic single phase zinc ferrite nanoparticles have been prepared by coprecipitation method at 20 °c without any subsequent calcination. the composition, crystallite size, microstructure and magnetic properties of the prepared nanoparticles were investigated using x-ray diffraction (xrd), field emission scanning electron microscope (fesem), transmission electron microscope (tem), fou...

Journal: :Journal of physics 2021

Abstract Ferrite nanoparticles are magnetic. They also show photocatalytic and antibacterial activities. These unique properties make them extremely useful for various applications e.g., they can potentially be used electronic equipment, telecommunication systems, radar, sensing material, catalytic applications, several biomedical applications. Several methods have been developed to synthesise ...

In the present study, new multi-components spinel ferrite Zinc doped metallic ferrites are investigated. The synthesized compounds consisting of Zinc copper ferrite nanostructures were developed using the Co-precipitation technique. Powder X-ray diffraction pattern (XRD) confirms the formation of the spinel phase for all the samples. The lattice constant was studied through powder X-ray diffrac...

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