锆-铝复合氧化物的制备及酸腐蚀对其表面性质的影响  

Preparation and Evaluation of Acid-Corroded Zirconia-Alumina Composites as HPLC Support

作　　者：万剑砥[1] 冯钰锜[1] 胡玉玲[1] 达世禄 王忠华[1] 

机构地区：[1]武汉大学化学系,武汉430072

出　　处：《分析科学学报》2001年第5期371-374,共4页Journal of Analytical Science

基　　金：国家自然科学基金 (No.2 9875 0 2 0 )

摘　　要：利用溶胶 -凝胶技术制备了 Zr O2 - Al2 O3复合氧化物。考察了不同的投料比时复合氧化物的物理化学性质 ,比较了不同浓度酸腐蚀前后氧化物微球的比表面积、孔径、表面酸碱性及复合氧化物中氧化锆。A new support, zirconia alumina spherical particles, was synthesized by means of a sol gel method. The physicochemical properties such as the acid base properties, the pore volume, the surface area and the average pore diameter of this novel support before and after acid treatment were investigated. The results show that the acid corroded zirconia alumina support is of a larger surface area and better pore structure as compared with the native zirconia alumina particles.

关 键 词：ZRO2 AL2O3 复合氧化物 酸腐蚀 色谱填料 氧化锆 氧化铝 制备 溶胶-凝胶 孔结构 比表面积 孔径 

分 类 号：O657.7[理学—分析化学]