Hydrothermal Synthesis of Mesoporous Al2O3:Influences of pH Values and Aluminum Precursors

摘要：

　　The influences of pH values and aluminum precursors ofglucose-water-aluminum salt reaction system on the hydrothermal synthesis of mesoporous Al2O3 were investigated.With the aid of scanning electron microscopy (SEM),electron diffraction spectrum (EDS) and X-ray diffraction (XRD) characterizations,we found that,under hydrothermal treatment at 180 ℃ for 20 h,aluminum nitrate (Al(NO3)3) could be used as the precursor to synthesize the spherical flower-like Al2O3 by using the synthesis solutions with different pH values in a certain scope; using aluminum chloride (AlCl3) as precursor,we can only get a small amount of Al2O3 composed of micro-spheres and sheets; while adopting aluminum sulfate (Al2(SO4)3) as precursor,a small amount of cubic-shape aluminum sulfate crystal can be obtained.

关键词： Mesoporous Al2O3 Hydrothermal synthesis Glucose Aluminum precursor

作者: Huiping Liu

作者单位: School of Urban Construction and Safety Engineering, Shanghai Institute of Technology, Shanghai, 201418, China

会议类型: 国际会议

会议名称: 2012 International Conference on Chemical Engineering,Metallurgical Engineering and Metallic Materials(2012化工、冶金和金属材料国际会议(CMMM2012))

会议地点: 昆明

会议语种:英文

页码: 396-400

在线出版日期: 2012-10-12（万方平台首次上网日期，不代表论文的发表时间）