4.4 Article

Simple Hydrothermal Synthesis of Nickel Hydroxide Flower-Like Nanostructures

Journal

JOURNAL OF CLUSTER SCIENCE
Volume 24, Issue 1, Pages 365-376

Publisher

SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10876-013-0558-3

Keywords

Nickel hydroxide; Nickel oxide; Chemical synthesis; Flower-like nanostructure; Hydrothermal

Funding

  1. council of Iran National Science Foundation [159271/51]
  2. University of Kashan [159271/51]

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alpha-Ni(OH)(2) flower-like nanostructures were successfully synthesized through one-step hydrothermal method with nickel acetate tetrahydrate, ethylene-1,2-diamine (en), hexamethylenetetramine (HMT) and cetyltrimethylammonium bromide (CTAB) as morphology-directing agents. Optimum conditions to obtain high yield and pure phase alpha-Ni(OH)(2) were identified by varying experimental parameters such as: en, HMT and CTAB concentration and reaction temperature. The products were characterized by X-ray diffraction, scanning electron microscopy, Fourier transform infrared and thermogravimetric analysis. These results indicated that the alpha-nickel hydroxide contains water molecules and anions. The hierarchical NiO nanostructures were obtained by the as-synthesized alpha-Ni(OH)(2) nanostructures annealed at 300 A degrees C for 4 h.

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