Controlling the size and morphology of anisotropic nanostructures of nickel borate using microemulsions and their magnetic properties

Menaka, Soma Sharma, Kandalam V. Ramanujachary, Samuel E. Lofland, Ashok K. Ganguli

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

Anisotropic nanostructures of nickel borate with controlled size and morphology have been synthesized by a precursor-mediated route. The nickel boron precursor has been synthesized using microemulsions using Tergitol as a surfactant. Microemulsions with various co-surfactants (1-butanol, 1-hexanol and 1-octanol) have been used to obtain uniform nanorods (dia 3-5. nm, length 25. nm) and nanospindles (dia 30. nm, length 400. nm). A higher chain length of the co-surfactant (octanol) leads to more uniform rods rather than spindles (butanol). These nanorods show antiferromagnetic behavior with the Néel temperature ranging from 44 to 47. K. Though there is no marked variation in Nėel temperature, the magnetic moment increases drastically with the anisotropy of nanorods (thinner rods).

Original languageEnglish (US)
Pages (from-to)393-397
Number of pages5
JournalJournal of Colloid And Interface Science
Volume360
Issue number2
DOIs
StatePublished - Aug 15 2011

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Surfaces, Coatings and Films
  • Colloid and Surface Chemistry

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