Published March 2018 | Version v1
Journal article

Structure and magnetic properties of Fe-Co nanoparticles prepared by polyol method

  • 1. Hanoi National University of Education, 132 Xuan Thuy, Ha Noi (Viet Nam)
  • 2. Hanoi Pedagogical University No.2, Xuan Hoa, Vinh Phuc (Viet Nam)
  • 3. Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Ha Noi (Viet Nam)

Description

Fe100−xCox (x = 25 − 45) nanoparticles have been successfully prepared from FeCl2 and Co(C2H3O2)2 by thermal decomposition process in solution of polyethylene glycol and NaOH (polyol method). The influence of pH level and Co concentration on structure and magnetic properties of the Fe-Co nanoparticles were investigated. The X-Ray Diffraction (XRD) results confirm the formation of a body centered cubic single phase of the Fe(Co) nanoparticles. The Scanning Electron Microscopy (SEM) images show the grain size of the samples is about 60 nm. Saturation magnetization the Fe-Co nanoparticles strongly depends on the Co concentration and pH level in the fabrication process. The optimal pH level and Co concentration for the Fe-Co nanoparticles were found to be 7 and 35 at%, respectively. A quite high saturation magnetization of 228 emu/g has been achieved for the Fe-Co nanoparticles.

Availability note (English)

Available from http://dx.doi.org/10.1016/j.physb.2017.10.039

Additional details

Identifiers

DOI
10.1016/j.physb.2017.10.039;
PII
S092145261730772X;

Publishing Information

Journal Title
Physica. B, Condensed Matter
Journal Volume
532
Journal Page Range
p. 71-75
ISSN
0921-4526
CODEN
PHYBE3

Optional Information

Copyright
Copyright (c) 2017 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.