Synthesis of Spherical and Fine Cobalt Powders from Cobalt Oxalate

Shu Jing Peng; Hui Ling Du; Bing Wang

doi:10.4028/www.scientific.net/AMR.1088.300

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1088Synthesis of Spherical and Fine Cobalt Powders...

Synthesis of Spherical and Fine Cobalt Powders from Cobalt Oxalate

Abstract:

Spherical and fine cobalt powders were prepared by thermal decomposition of cobalt oxalate precipitated in the presence of pulsed electromagnetic field (PEMF). The morphology and phase structure were characterized by scanning electron microscopy (SEM), atomic force microscope (AFM) and X-ray powder diffraction (XRD). The aspect ratio was calculated by image tool software and the average size of cobalt particles was measured by laser particle size analyzer. The results indicate that both products prepared from cobalt oxalate with or without PEMF give rise to the formation of β-Co. The morphology of both products is similar to that of the precursors. The presence of PEMF plays an important role in formation of spherical and fine cobalt particles.

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Periodical:

Advanced Materials Research (Volume 1088)

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300-304

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https://doi.org/10.4028/www.scientific.net/AMR.1088.300

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Online since:

February 2015

Authors:

Shu Jing Peng*, Hui Ling Du, Bing Wang

Keywords:

Cobalt, Morphology, Pulsed Electromagnetic Field, Size

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