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研究了以硫酸钴为原料、硼氢化钠为晶核引发剂、水合肼为还原剂、PVP为分散剂,通过液相还原法制备纳米钴粉,考察了体系pH、温度、硫酸钴浓度等对钴粉粒径的影响,借助X射线衍射仪、扫描电子显微镜、原子力显微镜对纳米钴粉进行表征。结果表明:在Co2+浓度为0.030.04 mol/L、硼氢化钠质量浓度为0.4g/L、温度为4045℃、体系pH=10条件下,制得的纳米钴粉粒径在4090nm之间。
Abstract：Nano-cobalt powder was prepared by liquid-phase reduction method using cobalt sulfate as raw materials,sodium borohydride as nucleation initiator,hydrazine hydrate as reducing agent,PVP as dispersant.The influence of process parameters such as pH,temperature,cobalt sulfate concentration on cobalt powder size were examined.The products were characterized by SEM,XRD and AFM.The results show that the cobalt powder particle size distributs in the range of 4090 nm can be prepared at the conditions of Co2+ concentration of 0.030.04 mol/L,NaBH4 concentration of 0.4 g/L,temperature of 4045 ℃ and pH of 10.
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基本信息:
DOI：10.13355/j.cnki.sfyj.2018.01.012
中图分类号:TB383.1;TQ138.12
引用信息:
[1]任娇,何刚,金永中等.液相还原法制备纳米钴粉试验研究[J].湿法冶金,2018,37(01):55-59.DOI:10.13355/j.cnki.sfyj.2018.01.012.
基金信息:
国家自然科学基金资助项目(51572177);; 四川省科技厅资助项目(2016GZ0224,2017JY0158);; 四川理工学院大学生创新训练项目(CX2016004)