Controlled synthesis, structure and magnetic properties of Fe1−xNix alloy nanoparticles attached on carbon nanotubes

2005 ◽  
Vol 406 (1-3) ◽  
pp. 148-153 ◽  
Author(s):  
Hua-Qiang Wu ◽  
Yun-Jie Cao ◽  
Pin-Shi Yuan ◽  
Hong-Yan Xu ◽  
Xian-Wen Wei
Keyword(s):  
Carbon Nanotubes ◽  
Magnetic Properties ◽  
Controlled Synthesis ◽  
Alloy Nanoparticles

Controllable synthesis and magnetic properties of Fe–Co alloy nanoparticles attached on carbon nanotubes

2006 ◽  
Vol 41 (20) ◽  
pp. 6889-6894 ◽  
Author(s):  
Hua-Qiang Wu ◽  
Pin-Shi Yuan ◽  
Hong-Yan Xu ◽  
Dong-Mei Xu ◽  
Bao-You Geng ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Magnetic Properties ◽  
Alloy Nanoparticles ◽  
Controllable Synthesis

Highly stable Fe–Ni alloy nanoparticles encapsulated in carbon nanotubes: Synthesis, structure and magnetic properties

2010 ◽  
Vol 495 (1) ◽  
pp. 200-204 ◽  
Author(s):  
M.H. Xu ◽  
W. Zhong ◽  
X.S. Qi ◽  
C.T. Au ◽  
Y. Deng ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Magnetic Properties ◽  
Alloy Nanoparticles ◽  
Ni Alloy

scholarly journals Size Controlled Synthesis of FeCo Alloy Nanoparticles and Study of the Particle Size and Distribution Effects on Magnetic Properties

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
A. Shokuhfar ◽  
S. S. S. Afghahi
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Magnetic Properties ◽  
Molar Ratio ◽  
Microemulsion System ◽  
Controlled Synthesis ◽  
Alloy Nanoparticles ◽  
Feco Alloy ◽  
Transmission Electron ◽  
Size Controlled

In this research the size controlled synthesis of FeCo nanoparticles was done using a quaternary microemulsion system. X-ray diffraction and high resolution transmission electron microscopy of as-synthesized nanoparticles confirm the formation of FeCo alloy nanoparticles. The effects of two process parameters, namely, water to surfactant molar ratio and molar concentration of metal salts, on the size and size distribution of nanoparticles were discussed by the aid of transmission electron microscopy. The size dependency of magnetic properties was also investigated using a room temperature vibrating sample magnetometer. The superparamagnetic-ferromagnetic and single domain-multidomain transition sizes were determined. Then the specific absorption rates at transition sizes were calculated and the best sample for magnetic hyperthermia treatment was introduced.

Composition-controlled synthesis, structure and magnetic properties of ternary FexCoyNi100−x−y alloys attached on carbon nanotubes

2008 ◽  
Vol 463 (1-2) ◽  
pp. 78-83 ◽  
Author(s):  
Hua-Qiang Wu ◽  
Dong-Mei Xu ◽  
Qiang Wang ◽  
Qian-Yi Wang ◽  
Gui-Qin Su ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Magnetic Properties ◽  
Controlled Synthesis

scholarly journals Fe1-xNix Alloy Nanoparticles Encapsulated Inside Carbon Nanotubes: Controlled Synthesis, Structure and Magnetic Properties

Nanomaterials ◽  
2018 ◽  
Vol 8 (8) ◽  
pp. 576 ◽  
Author(s):  
Rasha Ghunaim ◽  
Christine Damm ◽  
Daniel Wolf ◽  
Axel Lubk ◽  
Bernd Büchner ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Carbon Nanotubes ◽  
Magnetic Properties ◽  
Quantum Interference ◽  
Magnetic Storage ◽  
Alloy Nanoparticles ◽  
Storage Devices ◽  
Transmission Electron ◽  
Protective Shield ◽  
Magnetic Storage Devices

In the present work, different synthesis procedures have been demonstrated to fill carbon nanotubes (CNTs) with Fe1-xNix alloy nanoparticles (x = 0.33, 0.5). CNTs act as templates for the encapsulation of magnetic nanoparticles, and provide a protective shield against oxidation as well as prevent nanoparticles agglomeration. By variation of the reaction parameters, the purity of the samples, degree of filling, the composition and size of filling nanoparticles have been tailored and therefore the magnetic properties. The samples were analyzed by scanning electron microscopy (SEM), transmission electron microscopy (TEM), Bright-field (BF) TEM tomography, X-ray powder diffraction, superconducting quantum interference device (SQUID) and thermogravimetric analysis (TGA). The Fe1-xNix-filled CNTs show a huge enhancement in the coercive fields compared to the corresponding bulk materials, which make them excellent candidates for several applications such as magnetic storage devices.

Observation of ferromagnetism in PdCo alloy nanoparticles encapsulated in carbon nanotubes

2010 ◽  
Vol 96 (25) ◽  
pp. 253114 ◽  
Author(s):  
Daniel Bretas Roa ◽  
Ingrid David Barcelos ◽  
Abner de Siervo ◽  
Kleber Roberto Pirota ◽  
Rodrigo Gribel Lacerda ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Alloy Nanoparticles

In situ synthesis of iron-filled nitrogen-doped carbon nanotubes and their magnetic properties

Carbon ◽  
2013 ◽  
Vol 61 ◽  
pp. 647-649 ◽  
Author(s):  
Qingze Jiao ◽  
Liang Hao ◽  
Qingyan Shao ◽  
Yun Zhao
Keyword(s):  
Carbon Nanotubes ◽  
Magnetic Properties ◽  
In Situ Synthesis ◽  
Nitrogen Doped ◽  
Nitrogen Doped Carbon
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