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Synthesis, characterization, and magnetic properties of flower-like nickel materials

  • W. Zhou
  • , L. Guo*
  • , L. He
  • , C. P. Chen
  • *Corresponding author for this work
  • Peking University

Research output: Contribution to journalArticlepeer-review

Abstract

Flower-like Ni particles about 1 μm in diameter have been synthesized by means of a mild chemical solution method with a soft template of hexadecyltrimethy-lammonium bromide (CTAB). Analysis of the structures by scanning electron microscopy (SHM) and high-resolution transmission electron microscopy (HRTEM) reveal that they are composed of particles with an average diameter of 250 nm. The particles are composed of grains 20-30 nm in size. Based on a series of experiments, the growing process of the flower-like structure is described briefly. The coercivity of the as-grown product at 300 K is about 90 Oe. It is small in comparison with that of the reported flower-like microstructure composed of nickel nanotips, ~232 Oe. This is attributed to its shape anisotropy and polycrystalline structure.

Original languageEnglish
Pages (from-to)1109-1112
Number of pages4
JournalPhysica Status Solidi (A) Applications and Materials Science
Volume205
Issue number5
DOIs
StatePublished - May 2008

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