| 乙醇热还原法制备空心镍球研究 |
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| 引用本文： | 米远祝,颜学敏.乙醇热还原法制备空心镍球研究[J].电子元件与材料,2010,29(3). |
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| 作者姓名： | 米远祝 颜学敏 |
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| 作者单位： | 长江大学,化学与环境工程学院,湖北,荆州,434023 |
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| 基金项目： | 湖北省教育厅资助项目(NoQ20081209,NoB20091201) |
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| 摘 要： | 以Ni(Ac)2·4H2O为原料,无水乙醇为溶剂和还原剂,利用乙醇热还原法,在不锈钢反应釜中,于230℃反应24h,制备了空心镍球(样品)。并用TEM、SEM和XRD研究其微结构及磁性能。结果表明:该球为单相的面心立方结构,含有约60%空心镍球结构及一些环状、半环状和半球状结构,直径在400～700nm;磁矫顽力为962.9A/m。最后探讨了空心镍球的形成机理。
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| 关 键 词： | 空心镍球 乙醇热还原法 微结构 磁性能 |
Preparation of hollow nickel spheres via an ethanol-thermal reduction method |
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| MI Yuanzhu,YAN Xuemin.Preparation of hollow nickel spheres via an ethanol-thermal reduction method[J].Electronic Components & Materials,2010,29(3). |
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| Authors: | MI Yuanzhu YAN Xuemin |
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| Affiliation: | School of Chemistry and Environmental Engineering;Yangtze University;Jingzhou 434023;Hubei Province;China |
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| Abstract: | Using Ni(Ac)_2·4H_2O as raw material, anhydrous alcohol as solvent and reductant, the hollow nickel spheres were prepared by the ethanol-thermal reduction method in stainless steel autoclave at 230 ℃ for 24 h. The microstructure and magnetic property of prepared nickel spheres were studied with TEM, SEM and XRD. The results show that the spheres exhibit single-phase faced central cubic (fcc) structure, and contain about 60% hollow nickel sphere structure, some ring, semi-ring, and semi-sphere structures. Their diameter is 400-700 nm. The magnetic coercivity of the spheres is 962.9 A/m. Finally, the formation mechanism of the hollow nickel spheres was also discussed. |
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| Keywords: | hollow nickel sphere ethanol-thermal reduction method microstructure magnetic property |
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