| 立方形氢氧化铝粉体的制备及性能表征 |
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| 引用本文： | 王晶,种丽娟,张力明.立方形氢氧化铝粉体的制备及性能表征[J].大连铁道学院学报,2010(6):65-67. |
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| 作者姓名： | 王晶 种丽娟 张力明 |
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| 作者单位： | 大连交通大学材料科学与工程学院; |
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| 基金项目： | 国家自然科学基金资助项目(50974026); 辽宁省教育厅高等学校科研计划资助项目(2008S035); 大连市计划资助项目(2008A13GX229) |
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| 摘 要： | 采用水热合成方法,以硫酸铝为原料,乙醇水溶液为溶剂,合成了具有立方形貌的氢氧化铝粉体材料.利用SEM、XRD、TG、IR分别对氢氧化铝的形貌、物相结构、热分解行为及官能团结构进行了分析.研究结果表明,当水醇比为1∶1,反应时间24 h,反应温度为200℃时,可获得形貌规则、分散度良好的立方形貌的氢氧化铝粉体,并且在此条件下水热合成的粉体为薄水铝石相.经700℃和1 200℃焙烧后分别得到仍为立方形貌的γ-Al2O3和α-Al2O3粉体.
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| 关 键 词： | 水热合成 立方形氢氧化铝 氧化铝 |
Synthesis and Characterization of Cubic Al(OH)_3 |
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| WANG Jing,CHONG Li-juan,ZHANG Li-ming.Synthesis and Characterization of Cubic Al(OH)_3[J].Journal of Dalian Railway Institute,2010(6):65-67. |
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| Authors: | WANG Jing CHONG Li-juan ZHANG Li-ming |
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| Institution: | WANG Jing,CHONG Li-juan,ZHANG Li-ming(School of Material Science , Engineering,Dalian Jiaotong University,Dalian 116028,China) |
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| Abstract: | Cubic AlOOH was synthesized with aluminum sulfate as precursor,ethanol-water as solvent by hydrothermal method.γ-Al2O3 and α-Al2O3 are obtained upon calcinatiing at 700℃ and 1 200℃,respectively.The morphology,phase structure,thermal decomposition behavior and organic structure of as-synthesized aluminum hydroxide were characterized by scanning electron microscope,X-ray diffraction,thermal gravimetric analysis and FT-IR spectrograph.Experiment results show that cubic aluminum hydroxide powder can be obtained using aluminum sulfate as a precursor when the ratio of water via alcohol is 1∶1 with hydrothermal time of 24 h,at 200℃,and the as-synthsized cubic aluminum hydroxide powder has good dispersity and regular morphology with the powder phase of boehmite. |
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| Keywords: | hydrothermal synthesis cubic aluminum hydroxide alumina |
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