Study on Synthesis of Ni-S Powders Synthesized by Hydrothermal Co-reduction
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 ℃.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 ℃ 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 ℃ 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 ℃ 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.
nickel sulfide NiS Ni3S2 Hydrothermal co-reduction
Yuanxing Cai Kegao Liu
School of Materials Science and Engineering,Shandong Jianzhu University,Fengming Road Jinan 250101,China
国际会议
西安
英文
637-640
2012-06-12（万方平台首次上网日期，不代表论文的发表时间）