摘要
综述了硅铝复合氧化物的制备方法,主要介绍了溶胶-凝胶法、沉淀法、水热合成法、混合法和浸渍法及其优缺点。溶胶-凝胶法因其可以制得高比表面、大孔径、孔分布集中的硅铝复合氧化物材料被广泛采用。介绍了硅铝复合氧化物材料作为催化剂载体应用于工业生产的现状,及其存在的问题和今后的发展方向。
The existing approaches of the synthesis of silica-alumina mixed oxides were reviewed, including sol-gel method, precipitation method, hydrothermal synthesis method, mixing method and impregnation method. Due to the high specific surface area, large pore volume and narrow pore distribution, sol-gel method was widely used. The current situation of the mixed oxides as catalyst support was introduced. Besides, the existing problems and the future directions have also been discussed.
出处
《广州化工》
CAS
2015年第4期22-24,共3页
GuangZhou Chemical Industry
关键词
硅铝复合氧化物
催化剂
载体
Silica-Alumina mixed oxides
catalyst
support
