一种用于汽车尾气净化的催化剂载体的制备及性能  

Preparation and Properties of the Catalyst Carrier for Automotive Exhaust Purification

作　　者：兰石琨 王志坚 翁国庆 杨庆山 唐仁英 

机构地区：[1]湖南稀土金属材料研究院,湖南长沙410126

出　　处：《稀有金属与硬质合金》2013年第2期41-43,共3页Rare Metals and Cemented Carbides

基　　金：湖南省科技厅工业支撑计划重点项目(2012GK2022)

摘　　要：以水解异丙醇铝所制备的γ-氧化铝为骨料,经模压、焙烧制备了多孔氧化铝载体,并对其结构形貌和物理性能进行了分析研究。结果表明,该载体具有热膨胀系数小、抗热震性好、孔径大、比表面积大等诸多优点,在汽车尾气净化方面有着广阔的应用前景。The porous alumina carriers were prepared by compression molding and roasting,with γ-alumina produced by hydrolysis of aluminium isopropoxide as the aggregate. Their structure and morphology, phys-ical properties were researched and analyzed. The results show that the carrier has lots of advantages, such as smaller thermal expansion coefficient ,better thermal shock resistance, larger pore size and specific sur-face area,so that it has a wide application prospect in automotive exhaust purification.

关 键 词：汽车尾气净化 催化剂载体 多孔氧化铝载体 水解异丙醇铝 Γ-氧化铝 

分 类 号：O643.36[理学—物理化学]