| 纳米γ-Fe_2O_3的室温固相反应工艺研究 |
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| 引用本文： | 王鹏飞,李亚东.纳米γ-Fe_2O_3的室温固相反应工艺研究[J].中国粉体技术,2006,12(2):34-36. |
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| 作者姓名： | 王鹏飞 李亚东 |
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| 作者单位： | 苏州大学,材料工程学院,江苏,苏州,215021 |
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| 摘 要： | 采用室温固相法合成了γ-Fe2O3的前驱体FeC2O4·2H2O及纳米γ-Fe2O3。以FeSO4·7H2O和H2C2O4·2H2O为原料,先得到了前驱体FeC2O4·2H2O,通过对反应机理的初步探讨,并研究其物质结构、分解过程和合适煅烧温度,最后在400℃下煅烧前驱体3h得到γ-Fe2O3纳米粒子。经热重(TG-DTA)、X射线衍射(XRD)和透射电镜(TEM)测试手段的分析,结果表明:室温固相法合成纳米γ-Fe2O3产物γ-Fe2O3纯净、粒子为纳米级且分布均匀。
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| 关 键 词： | 纳米γ-Fe_2O_3 固相反应 前驱体 |
| 文章编号： | 1008-5548（2006）02-0034-03 |
| 收稿时间： | 2005-08-27 |
| 修稿时间： | 2005-10-27 |
Processing Technology of Nano-sized γ-Fe2O3 Particles by Solid-State Reaction |
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| WANG Peng-fei,LI Ya-dong.Processing Technology of Nano-sized γ-Fe2O3 Particles by Solid-State Reaction[J].China Powder Science and Technology,2006,12(2):34-36. |
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| Authors: | WANG Peng-fei LI Ya-dong |
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| Abstract: | The FeC2O4·2H2O precursor and γ-Fe2O3 nanoparticle wereprepared by solid-state reaction at room temperature. The FeC2O4·2H2O precursor was prepared with FeSO4·7H2O and H2C2O4·2H2O.By the primary study of reaction mechanism and structure,decomposition, and appropriate calcining heat, the synthesis of γ -Fe2O3 nanoparticle was achieved by thermal decomposition of FeC2O·42H2O precursor 3 h at 400 ℃.The nanoparticle was characterized byTG-DTA, X-ray diffraction(XRD)and transmission electronmicroscope(TEM).The results showed that the γ-Fe2O3 nanoparticlessynthesed by solid-state reaction were pure and well-distributed. |
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| Keywords: | nano-sized ferric oxide solid-state reaction precursor |
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