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

M. H. Xu, W. Zhong*, X. S. Qi, Chak Tong AU, Y. Deng, Y. W. Du

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

45 Citations (Scopus)

Abstract

Highly stable Fe-Ni alloy nanoparticles encapsulated in carbon nanotubes have been synthesized by in situ catalytic decomposition of benzene over Fe-Ni alloy nanoparticles generated through procedures of sol-gel fabrication and hydrogen reduction. The phases of graphite and γ-FeNi solid solution (face centered cubic) were identified by X-ray diffraction. The results of FE-SEM and HRTEM characterization revealed that Fe-Ni nanoparticles encapsulated in carbon nanotubes are generated in large quantity. The composites are highly stable in air and show soft magnetic property, with saturation magnetization affected by the composition of Fe-Ni alloy and the temperature of benzene decomposition.

Original languageEnglish
Pages (from-to)200-204
Number of pages5
JournalJournal of Alloys and Compounds
Volume495
Issue number1
DOIs
Publication statusPublished - 9 Apr 2010

Scopus Subject Areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

User-Defined Keywords

  • Composite
  • FeNi alloy
  • Magnetization

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