Study on Synthesis of Ni-S Powders Synthesized by Hydrothermal Co-Reduction

Yuan Xing Cai; Ke Gao Liu

doi:10.4028/www.scientific.net/AMR.503-504.637

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 503-504Study on Synthesis of Ni-S Powders Synthesized by...

Study on Synthesis of Ni-S Powders Synthesized by Hydrothermal Co-Reduction

Abstract:

The technologies of synthesizing Ni-S powders from 0.001 mol NiCl2•6H2O and 0.001 mol sulfur (S) powder were investigated at 95,105,120,140 and 160 °C. The phases and morphology of the products were characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM) respectively. Experimental results show that, the Ni-S powders prepared at 120~160 °C from NiCl2•6H2O and S powder have the same major phase NiS. These products have flakes or unregular shape grains with sizes of 100~200nm. However, the product powder prepared at 105 °C has the major phase Ni3S2 without obvious impurity phases and only grains with size less than 200nm. No Nickel sulfides can be synthesized at 95 °C under the experimental conditions. It can be found that the NiS phase appears in the products powders obtained at higher temperatures while Ni3S2 obtained at lower temperature.

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Periodical:

Advanced Materials Research (Volumes 503-504)

Pages:

637-640

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.503-504.637

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Online since:

April 2012

Authors:

Yuan Xing Cai, Ke Gao Liu

Keywords:

Hydrothermal Co-Reduction, Ni₃S₂, Nickel Sulfide, NiS

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