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Journal of Materials Science

, Volume 43, Issue 6, pp 1974–1978 | Cite as

Morphology control in synthesis of nickel nanoparticles in the presence of polyvinylpyrrolidone (PVPK30)

  • Dayong Liu
  • Shan RenEmail author
  • Hui Wu
  • Qingtang Zhang
  • Lishi Wen
Article

Abstract

Nickel nanoparticles with different morphologies have been synthesized with polyvinylpyrrolidone (PVPK30) as structure-directing agent through a chemical reduction process. SEM, TEM and selected-area electron diffraction (SAED) were employed in the analysis of morphological characteristics of nickel nanoparticles. It was found that nickel nanoparticles are formed by the aggregation of nanoscale nickel crystallites, and particle morphology was strongly dependent on the PVPK30 concentration. In addition, crystallite size and formation time of nickel nanoparticles increased with the increasing PVPK30 concentration. PVPK30 additive seems to influence the three steps of nickel particle precipitation: nucleation, crystal growth and aggregation. The resultant spherical nickel nanoparticles showed high coercivity.

Keywords

Nickel Crystallite Size Formation Time Nickel Particle Nickel Powder 

Notes

Acknowledgements

This research was financially supported by both the Science & Technology project of Guangzhou city and the Science & Technology Department of Guangdong Province, China.

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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • Dayong Liu
    • 1
  • Shan Ren
    • 1
    Email author
  • Hui Wu
    • 1
  • Qingtang Zhang
    • 1
  • Lishi Wen
    • 1
  1. 1.The Center for Nanotechnology Research, State Key Laboratory of Optoelectronic Material and Technologies, School of Physical Science and TechnologySun Yat-Sen UniversityGuangzhouP.R. China

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