Metal-based magnetic fluids with core–shell structure FeB@SiO2 amorphous particles

Soft Matter ◽  
2017 ◽  
Vol 13 (37) ◽  
pp. 6340-6348 ◽  
Author(s):  
Mengchun Yu ◽  
Xiufang Bian ◽  
Tianqi Wang ◽  
Junzhang Wang
Keyword(s):  
High Temperature ◽  
Saturation Magnetization ◽  
Shell Structure ◽  
Magnetic Fluids ◽  
Core Shell ◽  
High Saturation Magnetization ◽  
Temperature Performance ◽  
High Saturation ◽  
Core Shell Structure ◽  
Amorphous Particles

Metal-based magnetic fluids with desirable high temperature performance based on core–shell FeB@SiO2 amorphous particles with high saturation magnetization.

scholarly journals High saturation magnetization superparamagnetic Fe/Ni core/shell microparticles for chromium removal

RSC Advances ◽  
2017 ◽  
Vol 7 (67) ◽  
pp. 42363-42369 ◽  
Author(s):  
Zhaoqing Lu ◽  
Yanling Xu ◽  
Shaomin Zhou
Keyword(s):  
Saturation Magnetization ◽  
Core Shell ◽  
Chromium Removal ◽  
High Saturation Magnetization ◽  
High Saturation

In this paper, the Fe/Ni microparticles are synthesized by two reactions which directly utilize H2 to reduce NiO and Fe3O4 microspheres.

Application of Fe78Si9B13 amorphous particles in magnetorheological fluids

RSC Advances ◽  
2016 ◽  
Vol 6 (27) ◽  
pp. 22511-22518 ◽  
Author(s):  
Mengchun Yu ◽  
Chuncheng Yang ◽  
Xiufang Bian ◽  
Shuchun Zhao ◽  
Tianqi Wang ◽  
...  
Keyword(s):  
Saturation Magnetization ◽  
Magnetorheological Fluids ◽  
High Saturation Magnetization ◽  
High Saturation ◽  
Amorphous Particles

Fe78Si9B13 amorphous particles with high saturation magnetization, low remanence and low coercivity are applied in preparing magnetorheological fluids.

Core-shell structure and magnetic properties of magnetite magnetic fluids stabilized with dextran

2005 ◽  
Vol 252 (2) ◽  
pp. 494-500 ◽  
Author(s):  
X.Q. Xu ◽  
H. Shen ◽  
J.R. Xu ◽  
J. Xu ◽  
X.J. Li ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Shell Structure ◽  
Magnetic Fluids ◽  
Core Shell ◽  
Core Shell Structure

scholarly journals Core–shell superparamagnetic monodisperse nanospheres based on amino-functionalized CoFe2O4@SiO2 for removal of heavy metals from aqueous solutions

RSC Advances ◽  
2017 ◽  
Vol 7 (12) ◽  
pp. 6911-6921 ◽  
Author(s):  
Chunrong Ren ◽  
Xingeng Ding ◽  
Huiqin Fu ◽  
Wenqi Li ◽  
Huating Wu ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Aqueous Solutions ◽  
Saturation Magnetization ◽  
Core Shell ◽  
High Saturation Magnetization ◽  
Adsorption Performance ◽  
High Saturation ◽  
Removal Of Heavy Metals

Monodisperse CoFe2O4@SiO2–NH2 core–shell superparamagnetic nanospheres had high saturation magnetization and adsorption performance for Cu(ii), Cd(ii) and Pb(ii).

Palladium redispersion at high temperature within the Pd@SiO2 core@shell structure

2018 ◽  
Vol 108 ◽  
pp. 73-76 ◽  
Author(s):  
Chang Yup Seo ◽  
Xiaoyin Chen ◽  
Kai Sun ◽  
Lawrence F. Allard ◽  
Galen B. Fisher ◽  
...  
Keyword(s):  
High Temperature ◽  
Shell Structure ◽  
Core Shell ◽  
Core Shell Structure

Prepared and Magnetic Properties of B4C/C Coated Co Nanocapsules

2011 ◽  
Vol 694 ◽  
pp. 328-331
Author(s):  
Da Wei Yu ◽  
Jin Bing Zhang ◽  
Gui Mei Shi
Keyword(s):  
Magnetic Properties ◽  
Coercive Force ◽  
Saturation Magnetization ◽  
Shell Structure ◽  
Surface Composition ◽  
Arc Discharge ◽  
Core Shell ◽  
Prepared Nanoparticles ◽  
Core Shell Structure ◽  
Co Nanoparticles

B4C/C coated Co nanocapsules were prepared by arc-discharging a Co-B amorphous alloy. The structure, morphology and surface composition as well as magnetic properties were investigated by X-Ray diffraction, High Resolution Transmission Electron Microscopy and XPS photoelectron spectrum as well as Vibrating Sample Magnetometer, respectively. The results show the as-prepared nanoparticles form in a core¬¬¬-shell structure with the size of nanoparticles in range of 20-100nm, the thickness of the shell is about 3-10nm. The core is Co grains, while the shell is B4C/C compound. That B4C coated Co nanoparticles form in a core¬¬¬-shell structure ascribed to Co as catalysts accelerating reaction between B with C ionize in the arc-discharge course. This structure can prevent Co nanoparticles from oxidation and agglomeration. A saturation magnetization of Ms=75.6 Am2/kg and a coercive force of Hc=20.1 kA/m are achieved for as-prepared nanocapsules by VSM. For as–prepared nanocapsules, the saturation magnetization is reduced and coercive force of is enhanced while Comparing with Co block. The increase coercive force for as-prepared nanoparticles can be mainly ascribed to size of particles diminished and the domain-wall depinned in the multi-domain particles.

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