Preparation of Nickel Powders by the Reduction of Hydrazine of Ni(OH)₂ Reactant Slurries from Nonaqueous Media

Abstract:

Nickel powders were prepared by the reduction of hydrazine of Ni(OH)2 reactant slurries from non-aqueous media. The morphological characteristics of nickel powders were investigated under various processing conditions. Nickel powders were characterized by using scanning electron microscope (SEM), X-ray diffractometer (XRD), thermal gravitational analysis (TGA) and X-ray photoelectron spectroscopy (XPS). The size of nickel powders was increased as the reaction temperature and time increased because of the thermal agglomeration of nuclei and/or increased growth rate. The surface of nickel powders composed of both Ni and Ni(OH)2 was oxidized in the temperature range of 400-600°C.

• Periodical: Materials Science Forum (Volumes 510-511)
• Pages: 722-725
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.510-511.722
• Online since: March 2006
• Authors: Yang Do Kim, Eun Young Choi, Yoon Bok Lee, Young Seok Kim, Hyong Kuk Kim, Kwang Ho Kim
• Keywords: Ni(OH)₂ Slurry, Nickel Powder, Nonaqueous Media

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