نتایج جستجو برای: cofe2o4 nanoparticle

تعداد نتایج: 31564  

2017
Pedro Martins Marco Silva Silvia Reis Nélson Pereira Senentxu Lanceros-Mendez Joannis K. Kallitsis Georgios Bokias

In order to obtain a wide-range magnetoelectric (ME) response on a ME nanocomposite that matches industry requirements, Tb0.3Dy0.7Fe1.92 (Terfenol-D)/CoFe2O4/P(VDF-TrFE) flexible films were produced by the solvent casting technique and their morphologic, piezoelectric, magnetic and magnetoelectric properties were investigated. The obtained composites revealed a high piezoelectric response (≈−18...

2014
Qian Yang Wei Zhang Meiling Yuan Limin Kang Junxiao Feng Wei Pan Jun Ouyang

BaTiO3-CoFe2O4 composite films were prepared on (100) SrTiO3 substrates by using a radio-frequency magnetron co-sputtering method at 750 °C. These films contained highly (001)-oriented crystalline phases of perovskite BaTiO3 and spinel CoFe2O4, which can form a self-assembled nanostructure with BaTiO3 well-dispersed into CoFe2O4 under optimized sputtering conditions. A prominent dielectric perc...

2013
Jongeun Kang Hyunseung Lee Young-Nam Kim Areum Yeom Heejeong Jeong Yong Taik Lim Kwan Soo Hong

Magnetic nanoparticle (MNP)-based magnetic resonance imaging (MRI) contrast agents (CAs) have been the subject of extensive research over recent decades. The particle size of MNPs varies widely and is known to influence their physicochemical and pharmacokinetic properties. There are two commonly used methods for synthesizing MNPs, organometallic and aqueous solution coprecipitation. The former ...

The magnetic and recyclable nanoparticles of CoFe2O4 were synthesized by a reverse co-precipitation process. Sonication was used to couple the CoFe2O4 surface with Ag2O. The characteristics and optical properties of the catalyst were studied by powder X-ray diffraction, UV–visible reflectance spectroscopy and scanning electron microscopy analyses. Pure CoFe2O4 and CoFe2O4/Ag2O were utilized to ...

Journal: :Science 2004
H Zheng J Wang S E Lofland Z Ma L Mohaddes-Ardabili T Zhao L Salamanca-Riba S R Shinde S B Ogale F Bai D Viehland Y Jia D G Schlom M Wuttig A Roytburd R Ramesh

We report on the coupling between ferroelectric and magnetic order parameters in a nanostructured BaTiO3-CoFe2O4 ferroelectromagnet. This facilitates the interconversion of energies stored in electric and magnetic fields and plays an important role in many devices, including transducers, field sensors, etc. Such nanostructures were deposited on single-crystal SrTiO3 (001) substrates by pulsed l...

Journal: Nanochemistry Research 2018

A magnetic NG@CoFe2O4 photocatalyst was developed via a facile hydrothermal method and characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), and vibrating sample magnetometry (VSM) techniques. The CoFe2O4 nanoparticles were found to have a size between 100-150 nm and were unifo...

2007
Dong-Hyun Kim Kyoung-Nam Kim Kwang-Mahn Kim In-Bo Shim Yong-Keun Lee

Magnetic nanoparticles offer some attractive possibilities in biomedicine because it has the special physical properties. Magnetic hyperthermia using magnetic nanoparticles requires that the magnetic particles have not only high heating ability in low magnetic field but also to be non-toxic for biomedical use. Although the reports of bulk magnetic materials or Fe3O4 nanoparticles have known for...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2010
abdolmajid bayandori moghaddam samanesadat hosseini jalil badraghi aghdas banaei

cofe2o4 magnetic nano particles (mnps) were synthesized by an efficient method in aqueous medium with the particle sizes of about 20-50 nm. then, a hybrid nanocomposite of polyaniline (pani)-cofe2o4 mnps has been electrodeposited directly on a stainless steel wire by the potentiostatic method. microscopic images of electrodeposited pani and pani-cofe2o4 nanocomposite coatings were obtained by s...

Journal: Nanomedicine Journal 2016
Faranak Mansouri Gholamreza Amiri, Mahnoosh Fatemi

Objective(s): According to the unique properties of magnetic nanoparticles, their usages in medicine and industry have increased in the last decade. Due to the vital role of liver in the body, the accumulation of CoFe2O4 and CoFe2O4@DMSA was studied. Materials and Methods:The nanoparticles were synthesized by co-precipitation method and were coated with DMSA. The techniques XRD, TEM, DLS, FTIR,...

2013
Ying-Hui Hsieh Ho-Hung Kuo Sheng-Chieh Liao Heng-Jui Liu Ying-Jiun Chen Hong-Ji Lin Chien-Te Chen Chih-Huang Lai Qian Zhan Yu-Lun Chueh Ying-Hao Chu

Complex oxide nanocrystals with a spinel structure show their remarkable optical, electronic, mechanical, thermal, and magnetic properties. In this study, we present a simple yet versatile strategy to grow selfassembled epitaxial CoFe2O4 nanocrystals with well-controlled size (less than 10 nm) and single orientation. CoFe2O4 nanocrystals were fabricated via phase separation in a BiFeO3–CoF2O4 u...

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