| 液相还原法制备Fe—Cr纳米粉 |
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| 引用本文： | 程起林,赵斌.液相还原法制备Fe—Cr纳米粉[J].华东理工大学学报(自然科学版),1999,25(5):499-501,505. |
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| 作者姓名： | 程起林 赵斌 |
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| 作者单位： | [1]华东理工大学技术化学物理研究所 [2]华东理工大学化学系 |
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| 摘 要： | 以三乙基硼氢化钠为还原剂，甲苯为溶剂，聚乙烯吡咯烷酮（ＰＶＰ）为分散剂，以铁、铬混和盐为原料制备出了约５０ｎｍ的Ｆｅ－Ｃｒ粉末。探讨了粉末合成过程的工艺条件及通过低温热处理方法获得了纳米Ｆｅ－Ｃｒ合金粉末。反应中加入的ＰＶＰ高分子分散剂起了改善粉末的形态与团聚程度的作用。
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| 关 键 词： | 纳米粉末 PVP分散剂 液相还原法 铁钴合金粉末 |
Preparation of Fe Cr nanopowders by Chemical Reduction in a Liquid Phase |
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| CHENG Qi lin ,ZHAO Bin ,GU Hong chen.Preparation of Fe Cr nanopowders by Chemical Reduction in a Liquid Phase[J].Journal of East China University of Science and Technology,1999,25(5):499-501,505. |
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| Authors: | CHENG Qi lin ZHAO Bin GU Hong chen |
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| Institution: | CHENG Qi lin 1,ZHAO Bin 2,GU Hong chen 1 |
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| Abstract: | Fe Cr nanopowders with mean diameter 50nm were successfully prepared in an organic solution of mixed ferrous and chromic salts, using sodium triethylborohydride as a reducing agent, toluene as a solvent, PVP as a dispersant agent. Conditions of preparation of Fe Cr powders were discussed and Fe Cr nanopowder was formed by low temperature heat treatment. The addition of PVP in the reaction improves powder morphology and glomeration. |
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| Keywords: | sodium triethylborohydride Fe Cr nanopowder toluene heat treatment PVP dispersant agent |
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