Synthesis and Characterization of Nickel Powders by a Solvothermal Processing

용매열 합성법에 의한 니켈 분말 합성 및 특성

Park, Chan;Bae, Dong-Sik

  • Received : 2016.01.30
  • Accepted : 2016.03.29
  • Published : 2016.05.27


Nickel powders were prepared under solvothermal condition by precipitation from metal nitrates with aqueous ammonium hydroxide. The powders were obtained at in a temperature range of $190-250^{\circ}C$ for 6h. The morphology and size of nickel powders were studied as a function of reaction temperature. The synthesis of nickel crystalline particles is possible under a solvothermal conditions in ethylene glycol solution. Characterization of the synthesized nickel powders were studied by XRD, SEM(FE-SEM) and TG/DSC. X-ray diffraction analysis of the synthesized powders indicated the formation of nickel structure after reaction. The average crystalline sizes of the synthesized nickel powders were in the range of 200-1000 nm; and the distribution of the powders was broad. The shape of the synthesized nickel particles was almost spherical. The morphology of synthesized nickel powders changed with reaction condition. It was possible to synthesize nickel powders directly in ethylene glycol without reducing agent.


nickel;solvothermal processing;nano powders;spherical shape


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Supported by : National Research Foundation