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纳米硫化锌的制备及助燃性能
Synthesis and characteristics of nanometer-sized ZnS by solid state reaction
【摘要】 以NaCl、HOCH2CH2OH和(CH3)2CHOH为分散剂,用固相法在室温合成了纳米硫化锌.用紫外吸收光谱、红外光谱和氮气吸附等方法对纳米硫化锌粉体的结构、组成、平均粒径和比表面积等进行了表征,研究了分散剂和温度等因素对纳米硫化锌粉体的性能以及纳米硫化锌对重油-煤-水三元混合流体燃烧性能的影响.结果表明:加入适量的分散剂和表面活性剂, 在室温用固相法能够制备出分散性好的单一立方相纳米硫化锌.在其紫外吸收光谱中纳米硫化锌吸收峰蓝移,并具有红外透明性.纳米硫化锌作为助燃剂添加到重油-煤-水三元混合流体燃料燃中,能够明显提高重油-煤-水三元混合流体的燃烧性能.
【Abstract】 The nanometer-sized ZnS was prepared by solid state reaction method at room temperature and the characters were investigated. The results showed that the particle diameters of nanometer-sized ZnS are in the range of 14-22 nm, mean partical size is about 18 nm and a specific surface area is about 58.8 m2·g-1. High activity nanometer-sized ZnS can be obtained through solid state reaction method. The ultraviolet absorption demonstrates that the increased bandgap is due to quantum confinement. The ZnS nanoparticles have no IR absorption. The nanometer-sized ZnS can improve evidently combustibility of the heavy oil-coal-water triplex liquid synfuel.
【Key words】 inorganic non-metallic materials; solid state reaction; nanometer-sized zinc sulfide; liquid synfuel; aid combustion;
- 【文献出处】 材料研究学报 ,Chinese Journal of Materials Research , 编辑部邮箱 ,2006年01期
- 【分类号】TB383.1
- 【被引频次】17
- 【下载频次】901