نتایج جستجو برای: Magnesium Ferrite

تعداد نتایج: 44740  

درخشی, منصوره, شاه طهماسبی, ناصر, عربی, هادی,

: Hydroxyapatite (Ca10(PO4)6(OH)2) with the hexagonal crystal structure is the only identifiable mineral phase of bone. In this work, magnesium ferrite-hydroxyapatite nanocomposites were synthesized for the purpose of medical applications. The first step of this work is the synthesis of mesoporous hydroxyapatite nanorods via co-precipitation method in combination with micelles template. Non-ion...

2017
Cajetan Ikenna Nlebedim Ravi L. Hadimani Ruslan Prozorov David C. Jiles

Journal: :journal of nanostructures 0
fariba sadri department of chemistry, payame noor university, tehran, iran ali ramazani department of chemistry, university of zanjan, zanjan, iran hamideh ahankar department of chemistry, abhar branch, islamic azad university, abhar, iran saeid taghavi fardood department of chemistry, university of zanjan, zanjan, iran pegah azimzadeh asiabi department of chemistry, university of zanjan, zanjan, iran mehdi khoobi department of medicinal chemistry, faculty of pharmacy and pharmaceutical sciences research center, tehran university of medical sciences, tehran, iran sang woo joo

nanomagnetic mgfe2o4 is an active, stable, and reusable catalyst for the oxidation of alcohols. the oxidation of various primary and secondary alcohols has been examined and related corresponding products were obtained in good yields. the reactions were carried out in the presence of water as solvent and oxone (at room temperature) or h2o2 (at 60 ºc) as an oxidant. the catalyst was investigated...

2005
S. K. Pradhan S. Bid M. Gateshki V. Petkov

Nanocrystalline magnesium ferrite is synthesized by high-energy ball milling. The formation of nanocrystalline ferrite phase is observed after 3 h of milling and its content increases with milling time. The structural and microstructural evolution of the nanophase have been studied by X-ray powder diffraction and the Rietveld method. After 3 h of milling, ferrite phase (mixed spinel) nucleates ...

Journal: :journal of sciences, islamic republic of iran 2011
r. sepahvand

in the present work, magnetic nanocomposites of the multi-walled carbon nanotubes (mwcnts) decorated with magnesium ferrite (mgfe2o4) nanoparticles were synthesized successfully by citrate-gel method. the shape, structure, size, and properties of the as-synthesized sample were characterized by fourier transform infrared spectroscopy (ftir), x-ray diffraction pattern (xrd), transmission electron...

2017
J. Tasaki T. Izushi J. TASAKI

The influence of various cations ranging from alkali metals to transition metals according to the periodic table were discussed. The ferrites used were Ni ferrite, Mg ferrite and Zn ferrite having different cation distributions in the spinel lattice. Cations having appropriate ionic radii and valencies are soluble in ferrite. Several additives formed other phase in addition to the spinel phase....

Journal: :Journal of Electrical Engineering 2019

2008
Santi Maensiri Montana Sangmanee Amporn Wiengmoon

Magnesium ferrite (MgFe(2)O(4)) nanostructures were successfully fabricated by electrospinning method. X-ray diffraction, FT-IR, scanning electron microscopy, and transmission electron microscopy revealed that calcination of the as-spun MgFe(2)O(4)/poly(vinyl pyrrolidone) (PVP) composite nanofibers at 500-800 degrees C in air for 2 h resulted in well-developed spinel MgFe(2)O(4) nanostuctures. ...

R. Sepahvand

In the present work, magnetic nanocomposites of the multi-walled carbon nanotubes (MWCNTs) decorated with magnesium ferrite (MgFe2O4) nanoparticles were synthesized successfully by citrate-gel method. The shape, structure, size, and properties of the as-synthesized sample were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction pattern (XRD), transmission electron...

Journal: :The Journal of the Society of Chemical Industry, Japan 1968

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