TY  - JOUR
T1  - Microwave Assisted Combustion Synthesis of Co-Zn Nanoparticles
Ferrite Encapsulation by Graphene
AU - S. Ahmade, Nada AU - M. Abdel Hasan, Falah 
JO  - Journal of Engineering and Applied Sciences
VL  - 13
IS  - 20
SP  - 8653
EP  - 8661
PY  - 2018
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2018.8653.8661
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2018.8653.8661
KW  - High conductivity
KW  -Co-Zn ferrite
KW  -nanoparticles
KW  -vabrating VSM
KW  -demonstrated
KW  -glycine fuel
AB  - In this research, we have used a microwave assisted combustion method to synthesize cobalt-zinc ferrite nanoparticles with four nanocrystalline ferrites including : Co<sub>1</sub>Fe<sub>2</sub>O<sub>4</sub>, Co<sub>0.9</sub>Zn<sub>0.1</sub>Fe<sub>2</sub>O<sub>4</sub>, Co<sub>1.1</sub>Zn<sub>0.1</sub>Fe<sub>2</sub>O<sub>4</sub> and Co <sub>0.3</sub>Zn <sub>0.7</sub>Fe<sub>2</sub>O<sub>4</sub> using glycine as a fuel. Then syntheses graphene by the same method, graphene single layer graphite, known as graphene is an important material because of its unique two-dimensional structure, high conductivity, excellent electron mobility and high surface area. The obtained ferrites were characterized studied by X-Ray powder Diffraction (XRD), results for Co-Zn ferrite after and before coating via. graphene showed that the material had cubic spinal structure. Field Emission Scanning Electron Microscopy (FESEM) micrographs for the powder before coating showed that all of the nanoparticles have nano-crystalline behavior (16-36 nm) and particles indication cubic shape and after coating via grapheme was (46-12 nm). Vabrating VSM analysis demonstrated that the type of fuel used for synthesis is highly effective a parameter on magnetic properties of nanoparticles. The B-H loops of all samples that are obtained by using vibrating sample magnetometer are displayed. The effect of Co addition on saturation magnetization and the coercivity of all the samples are discussed. The samples synthesized with glycine fuel showed better magnetic properties for application as soft magnetic devices.
ER  -