| 制备条件对纳米NiO微粉的影响 |
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| 引用本文： | 程虎民,胡欣,马季铭,齐利民.制备条件对纳米NiO微粉的影响[J].中国粉体技术,2001,7(5):20-22. |
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| 作者姓名： | 程虎民 胡欣 马季铭 齐利民 |
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| 作者单位： | 北京大学化学学院北京 100871 |
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| 摘 要： | 用化学沉淀法制备了纳米立方NiO的微粉 ,研究了介质 pH、不同沉淀剂和热处理温度对纳米NiO粒子大小和聚结状态的影响。用NaOH作沉淀剂 ,控制介质 pH为 9～10 ,经 2 70～ 30 0℃热处理 4h ,制备得到粒子尺寸约 5nm ,在水中易重新分散的纳米NiO微粉
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| 关 键 词： | 纳米NiO 化学沉淀法 沉淀剂 |
| 文章编号： | 1008-5548(2001)05-0020-03 |
| 修稿时间： | 2001年9月30日 |
Effects of Prepared Conditions on Formation of Nanosized NiO Powders |
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| CHENG Hu min,HU Xin,MA Ji ming,QI Li min.Effects of Prepared Conditions on Formation of Nanosized NiO Powders[J].China Powder Science and Technology,2001,7(5):20-22. |
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| Authors: | CHENG Hu min HU Xin MA Ji ming QI Li min |
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| Abstract: | Nanosized NiO powders were prepared with the chemical precipitation method.The effects of pH,precipitant and heat treatment temperature on formation of nanosized NiO powders were researched.Nanosized NiO(～5nm)powders,which were redispersed easily in water,were obtained under following conditions:NaOH as precipitant,pH～10,heat-treatment temperature 270～300℃ for 4h.When H 2C 2O 4(oxalic acid)was used as precipitant,the agglomeration between NiO particles was serious. |
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| Keywords: | nanometer NiO chemical precipitation method precipitant |
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