نتایج جستجو برای: Cobalt Ferrite

تعداد نتایج: 36369  

2013
Noppakun Sanpo Cuie Wen Christopher C. Berndt James Wang

This book chapter is organized into four major parts. Firstly, it will cover an introduction of using spinel ferrite nanoparticles in biomedical applications, including the antibacterial properties. The second part will provide an overview of the structure and magnetism of spinel ferrites. The third part will focus on the preparation of cobalt ferrite and transition metal substituted cobalt fer...

2015
Kaliyamoorthy Venkatesan Dhanakotti Rajan Babu Mane Prabhu Kavya Bai Ravi Supriya Radhakrishnan Vidya Saminathan Madeswaran Pandurangan Anandan Mukannan Arivanandhan Yasuhiro Hayakawa

Cobalt-doped iron oxide nanoparticles were prepared by solution combustion technique. The structural and magnetic properties of the prepared samples were also investigated. The average crystallite size of cobalt ferrite (CoFe2O4) magnetic nanoparticle was calculated using Scherrer equation, and it was found to be 16±5 nm. The particle size was measured by transmission electron microscope. This ...

Journal: :Chemical communications 2009
Anna Han Donghyuk Choi Taehei Kim Jei Hee Lee Jai Keun Kim Mi Jin Yoon Kyeong Sook Choi Sang-Wook Kim

The reaction mechanism for conversion of MnO nanoparticles to Mn-ferrite nanoparticles was studied, which involved sequential consumption of MnO and the growth of ferrite. The method could be applied to other ferrite nanoparticles including cobalt ferrite.

Journal: :journal of ultrafine grained and nanostructured materials 2015
sedigheh rashidi abolghasem ataie

in this research, the effect of different biopolymers such as polyethylene glycol (peg) and polyvinylalcohol (pva) on synthesis and characterization of polymer/cobalt ferrite (cf) nano-composites bymechanical alloying method has been systematically investigated. the structural, morphological andmagnetic properties changes during mechanical milling were investigated by x-ray diffraction (xrd),fo...

2011
Emad Girgis Mohamed MS Wahsh Atef GM Othman Lokeshwar Bandhu KV Rao

The optical properties of multi-functionalized cobalt ferrite (CoFe2O4), cobalt zinc ferrite (Co0.5Zn0.5Fe2O4), and zinc ferrite (ZnFe2O4) nanoparticles have been enhanced by coating them with silica shell using a modified Stöber method. The ferrites nanoparticles were prepared by a modified citrate gel technique. These core/shell ferrites nanoparticles have been fired at temperatures: 400°C, 6...

2013
Natalie Palina H. Modrow Peter A. Dowben

We identify contributions to the valence band of the nanosized BaFe12−2xCoxTixO19 barium ferrite particles, from the cobalt and titanium dopants. Resonant photoemission results show that cobalt and titanium dopants strongly hybridize with the barium ferrite matrix. Fano resonances are identifi ed in the valence band region, at the Ba (5s), Ti (3p) and Co (3p) thresholds, and there are signifi c...

2017
Natalie Palina H. Modrow Peter A. Dowben Yaroslav B. Losovyj

We identify contributions to the valence band of the nanosized BaFe12−2xCoxTixO19 barium ferrite particles, from the cobalt and titanium dopants. Resonant photoemission results show that cobalt and titanium dopants strongly hybridize with the barium ferrite matrix. Fano resonances are identifi ed in the valence band region, at the Ba (5s), Ti (3p) and Co (3p) thresholds, and there are signifi c...

2016
Cajetan Ikenna Nlebedim Kevin W. Dennis William McCallum David C. Jiles I. C. Nlebedim K. W. Dennis R. W. McCallum

The variations in the structural magnetic properties of cobalt ferrite due to Ti4+/Co2+ co-substitution for 2Fe3+ are presented. The non-linear relation in the variation of the lattice parameter agrees with a previous study on cation distribution, which showed that the rate of substitution of cations into the A-sites and B-sites varies with Ti-concentration. Such variation in the rate of substi...

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

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