| 燃烧法制备γ-Al2O3粉体及其表征 |
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| 引用本文： | 郭琴,储刚,王亚娇,张辉.燃烧法制备γ-Al2O3粉体及其表征[J].石油炼制与化工,2012,43(1):54-57. |
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| 作者姓名： | 郭琴 储刚 王亚娇 张辉 |
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| 作者单位： | 辽宁石油化工大学化学与材料科学学院，辽宁 抚顺 113001 |
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| 基金项目： | 辽宁省自然科学基金资助项目 |
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| 摘 要： | 以硝酸铝、甘氨酸为原料，采用燃烧合成法制备了γ-Al2O3粉体，利用XRD、SEM、TG-DTA等手段对所制备的γ-Al2O3粉体进行了表征，考察了反应溶液pH值、硝酸铝与甘氨酸配比、煅烧温度对纳米γ-Al2O3粉体粒径和纯度的影响。确定了制备γ-Al2O3粉体的最佳工艺条件：硝酸铝与甘氨酸物质的量配比为3:5，pH值为2，煅烧温度为750 ℃。
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| 关 键 词： | 燃烧合成 γ-Al2O3 pH值 原料配比 煅烧温度 |
| 收稿时间： | 2011-07-06 |
PREPARATION OF γ-Al2O3 POWDER BY COMBUSTION SYNTHESIS METHOD AND CHARACTERIZATION |
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| Guo Qin
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Chu Gang
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Wang Yajiao
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Zhang Hui.PREPARATION OF γ-Al2O3 POWDER BY COMBUSTION SYNTHESIS METHOD AND CHARACTERIZATION[J].Petroleum Processing and Petrochemicals,2012,43(1):54-57. |
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| Authors: | Guo Qin Chu Gang Wang Yajiao Zhang Hui |
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| Affiliation: | (School of Chemistry and Materials Science,Liaoning Shihua University,Fushun,Liaoning113001) |
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| Abstract: | Nanometer γ-Al2O3 powder was prepared by combustion synthesis method using aluminum nitrate and glycine as raw materials.The prepared γ-Al2O3 powder was characterized by means of X-ray diffraction(XRD),scanning electron microscope(SEM) and thermogravimetric-differential thermal analysis(TG-DTA).The influence of solution pH value,raw materials molar ratio and calcination temperature on the particle size,purity and morphology of γ-Al2O3 powder were investigated.Under the optimal preparation conditions of aluminum nitrate/glycine molar ratio of 3∶5,a solution pH value of 2 and a calcination temperature of 750 ℃,fluffy γ-Al2O3 powder with high purity could be obtained. |
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| Keywords: | combustion synthesis γ-Al2O3 pH value molar ratio calcination temperature |
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