| 微乳液反应法制备α-Fe2O3超细粒子的研究 |
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| 引用本文： | 陈龙武,甘礼华,岳天仪,姜继森,杨燮龙.微乳液反应法制备α-Fe2O3超细粒子的研究[J].物理化学学报,1994,10(8):750-754. |
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| 作者姓名： | 陈龙武 甘礼华 岳天仪 姜继森 杨燮龙 |
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| 作者单位： | Department of Chemsitry,Tongji University,Shanghai 200092,Department of Chemistry,Physics,East China Normal University,200062 |
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| 摘 要： | 铁氧化物胶体微粒的制备具有重要的意义，因为这些氧化物不仅具有理论研究价值，而且在催化、防腐、颜料以及磁记录材料等研究领域都有广泛的应用．Matijevic’和Schemer山最初用三价铁盐的升温强迫水解法制备出多种形状的。－Fe。03和个FeOOH均匀胶体微粒．其后，我们和张玉亭等在无防尘设备的简化实验条件下，按照修改后的实验手续也成功地获得了均匀球状。一饱0。、驷0。等胶体粒子K司，并对制备条件作了进一步研究则．但这些方法所能得到的最小粒子直径约为50urn．考虑到微乳液体系具有分散相液滴极其微小而且又很均匀的特点，本文…
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| 关 键 词： | 微乳液 超细粒子 α-Fe2O3 Fe(NO3)3 Mossbauer谱 |
| 收稿时间： | 1993-04-07 |
| 修稿时间： | 1993-10-06 |
Studies on the Pareparation of α-Fe2O3 Ultrafine Particles by Microemulsion Reaction Method |
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| Chen Longwu, Gan Lihua, Yue Tianyi.Studies on the Pareparation of α-Fe2O3 Ultrafine Particles by Microemulsion Reaction Method[J].Acta Physico-Chimica Sinica,1994,10(8):750-754. |
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| Authors: | Chen Longwu Gan Lihua Yue Tianyi |
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| Institution: | Department of Chemsitry,Tongji University,Shanghai 200092|Department of Chemistry,Physics,East China Normal University,200062 |
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| Abstract: | In the water-in-oil microemulsion system of Triton X-100, 1-hexanol, cyclohexane and Fe(NO_3)_3 aqueous solution, α－Fe_2O_3 ultrafine particles were prepared by the method of precipitation using NH_3. From transmission electron micrographs the mean diameter of particles is about 3nm. The uniformity of particle is good. These result have been confirmed by the method of Mossbauer spectrum measurement. The conditions of preparation of α－Fe_2O_3 ultrafine particles could be controlled easily and the reaction medium could be used cyclically. |
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| Keywords: | Microemulsion Ultrafine particle α-Fe2O3 Fe(NO3)3 Mossbauer spectrum |
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