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Simple Hydrothermal Synthesis of Nickel Hydroxide Flower-Like Nanostructures |
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| Authors: | Masoud Salavati-Niasari Hamideh Seyghalkar Omid Amiri Fatemeh Davar |
| Institution: | 1. Institute of Nano Science and Nano Technology, University of Kashan, P.O. Box 87317-51167, Kashan, Islamic Republic of Iran 2. Department of Inorganic Chemistry, Faculty of Chemistry, University of Kashan, P.O. Box 87317-51167, Kashan, Islamic Republic of Iran 3. Young Researchers Club, Kashan Branch, Islamic Azad University, Kashan, Iran 4. Department of Chemistry, Isfahan University of Technology, Isfahan, 84156-83111, Iran |
| Abstract: | α-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 α-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 α-nickel hydroxide contains water molecules and anions. The hierarchical NiO nanostructures were obtained by the as-synthesized α-Ni(OH)2 nanostructures annealed at 300 °C for 4 h. |
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