| 流变相-前驱物法制备纳米镍铁氧体粉末 |
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| 引用本文： | 付真金,廖其龙,卢忠远,唐纯培.流变相-前驱物法制备纳米镍铁氧体粉末[J].精细化工,2007,24(3):217-220. |
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| 作者姓名： | 付真金 廖其龙 卢忠远 唐纯培 |
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| 作者单位： | 西南科技大学,材料科学与工程学院,先进建筑材料四川省重点实验室,四川,绵阳,621010 |
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| 基金项目： | 国家自然科学基金-中国工程物理研究院(NSAF)联合基金
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西南科技大学校科研和教改项目 |
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| 摘 要： | 以乙酸镍、氢氧化铁和草酸为原料,用流变相反应法制备出前驱物,在不同温度下煅烧得到纳米镍铁氧体粉末。采用差热(TG-DSC)、X射线衍射(XRD)及透射电镜(TEM)对煅烧过程和产物进行了分析。结果表明,用流变相反应法制备的前驱物,在300℃煅烧即可直接形成纯相的尖晶石结构的镍铁氧体粉末。粉末呈方块状,平均颗粒大小约30 nm,分布均匀,分散性较好。相对其他方法,其煅烧温度低,可以克服因高温煅烧引起的颗粒增大和团聚的缺陷。
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| 关 键 词： | 纳米粉末 镍铁氧体 流变相 |
| 文章编号： | 1003-5214（2007）03-0217-04 |
| 修稿时间： | 2006-07-252006-09-19 |
Preparation of Nickel Ferrite Nano-powders by Rheological Phase-Precursor Reaction |
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| FU Zhen-jin,LIAO Qi-long,LU Zhong-yuan,TAN Chun-pei.Preparation of Nickel Ferrite Nano-powders by Rheological Phase-Precursor Reaction[J].Fine Chemicals,2007,24(3):217-220. |
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| Authors: | FU Zhen-jin LIAO Qi-long LU Zhong-yuan TAN Chun-pei |
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| Affiliation: | Key Laboratory of Advanced Building Material of Sichnan Province, Material Science and Engineering College, Southwest University of Science and Technology, Mianyang 621010, Sichnan, China |
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| Abstract: | Nickel ferrite nano-powders were successfully prepared by calcining the precursors at different temperatures,which were synthesized from Ni(CH3COO)2·4H2O,Fe(OH)3 and H2C2O4·2H2O by rheological phase reaction.Decomposition temperatures,structures and sizes of the samples were characterized by TG-DSC,XRD and TEM techniques.The results show that the precursors are directly transformed into the pure spinel nickel ferrite nano-powders at 300 ℃.The powders are square-shaped fine dispersion with an average particle size of 30 nm.The lower calcination temperature compared with other methods can avoid growing and reuniting of powders at high temperature. |
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| Keywords: | nano-powder nickel ferrite rheological phase |
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