石油炼制与化工 ›› 2012, Vol. 43 ›› Issue (1): 54-57.
• 催化剂 • 上一篇 下一篇
郭 琴,储 刚,王亚娇,张 辉
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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 ℃。
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, 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.
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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