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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、氧化铝摩尔比等物理化学参数的变化
The ZrO 2 - Al 2 O 3 composite oxide was prepared by sol - gel technique. The physicochemical properties of different composite oxides were investigated. The specific surface area, pore diameter, surface acidity and basicity of the oxide microspheres before and after different concentrations of acid were compared, and the physical properties of zirconia and alumina in the composite oxide were compared Changes in chemical parameters