نتایج جستجو برای: manganese ferrite nanoparticles

تعداد نتایج: 135874  

2014
N D Kandpal

Nano-sized crystallites of iron oxide were synthesized by cost effective co-precipitation method. X-ray diffraction pattern indicated that the magnetic nanoparticles were pure Fe3O4 with a spinel structure. The nanoparticles were characterized by X-ray diffraction (XRD), Fourier-Transform Infrared (FT-IR) spectra, Transmission electron microscope (TEM) and magnetization measurement of the nanop...

2015

Nano-sized materials are new substances quickly developed and generally measured as 1 to 100 nm size in one dimension. At a nanometer scale, the surface area increases hastily as particle size decreases, as a result, the electromagnetic, thermal, optical, and mechanical properties of nanomaterials modify. In recent years, manganese oxides (MnO2) have concerned considerable research interest due...

2015
Mohamed Qasim Al-Fahdawi Abdullah Rasedee Mothanna Sadiq Al-Qubaisi Fatah H Alhassan Rozita Rosli Mohamed Ezzat El Zowalaty Seïf-Eddine Naadja Thomas J Webster Yun Hin Taufiq-Yap

Iron-manganese-doped sulfated zirconia nanoparticles with both Lewis and Brønsted acidic sites were prepared by a hydrothermal impregnation method followed by calcination at 650°C for 5 hours, and their cytotoxicity properties against cancer cell lines were determined. The characterization was carried out using X-ray diffraction, thermogravimetric analysis, Fourier transform infrared spectrosco...

In this work, the effects of co-precipitation temperature and post calcination on the magnetic properties and photocatalytic activities of ZnFe2O4 nanoparticles were investigated. The structure, magnetic and optical properties of zinc ferrite nanoparticles were characterized by X-ray diffraction (XRD), vibrating sample magnetometry and UV–Vis spectrophotometry techniques.  The XRD re...

2013
Bashar Issa Ihab M. Obaidat Borhan A. Albiss Yousef Haik

Due to finite size effects, such as the high surface-to-volume ratio and different crystal structures, magnetic nanoparticles are found to exhibit interesting and considerably different magnetic properties than those found in their corresponding bulk materials. These nanoparticles can be synthesized in several ways (e.g., chemical and physical) with controllable sizes enabling their comparison ...

بابک نصر, , جمشید عمیقیان, , مرتضی مظفری, ,

 Phase formation of manganese ferrite prepared by co-precipitation method is studied at different annealing temperatures. It is shown that the spinel phase is formed by quenching only in inert gas. XRD patterns show that the background picks fall in intensity by increasing annealing temperature and the single phase is achieved by magnetic separation.

D. Ghanbari G. Nabiyouni, M. Salavati-Niasari S. Sharifi

Magnetic CoFe2O4 nanoparticles were synthesized via a simple chemical reaction using precipitation method. The obtained materials consist of ferrite particles with average diameter of 25 nm. The effect of different surfactants such as cationic, anionic and neutral on the morphology of the products was investigated. Scanning electron microscopy was used to study the structure and particle size o...

Journal: :Journal of Inorganic and Organometallic Polymers and Materials 2021

Divalent ferrite nano-crystalline materials subjected to shock wave recovery analysis bringing about prolific outcomes have received widespread attention among the scientists due their outstanding contribution that has fueled enrichment of science involving high-pressure ferrites which act as focal-point current research theme. On those lines, we intend provide Raman spectroscopic and electroch...

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In this research, zinc-iron ferrite nanoparticles were synthesized by thermal treatment method. The presence of crystalline phases by X-ray diffraction (XRD) was determined by X-ray diffraction (XRD), which confirmed the presence of crystalline phases in all nanoparticles. The particle size and morphology of the nanoparticles were obtained using Field Emission Scanning Electron Microscopy (FESE...

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