摘要
采用两类不同制备方法,分别制备出多孔氧化铝薄膜和多孔粉末氧化铅。薄膜多孔氧化铝的制备是通过二次阳极氧化法来实现。经不同电压下的一次阳极氧化、二次阳极氧化以及相同电压下的时间单因素实验可知,制备薄膜氧化铝的最佳工艺条件为:二次阳极氧化时间,7h;氧化电压,40V。分别使用加热法、水热法、溶胶-凝胶法制备粉末多孔氧化铝,利用XRD、热分析、N2吸附脱附和TEM对粉末多孔氧化铝进行表征。溶胶-凝胶法制备的粉末氧化铝比表面积最大,达到263m2/g,且具有较宽的孔径分布、较大的孔容。
The porous alumina with different poroperties,porous alumina film and power porous aluminum were respectively prepared by two type methods.The porous alumina film on Al foil was prepared at different anodic voltage oxidation time by quadratic anodic oxidation.The most suitable experiment condition is quadratic anodic oxidation time is 7 h and voltage is 40 V.There are three methods that can prepare porous alumina powder,heating method,hydro-thermal method,sol-gel method.Alumina was characterized by XRD,thermal analysis,N2 adsorption-desorption and TEM,the biggest surface area is the one which is prepared by sol-gel method,it is 263 m2/g,it also has concentrated pore size distribution.
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
2010年第8期934-940,共7页
Atomic Energy Science and Technology
关键词
多孔
氧化铝
表征
porous
alumina
characterization
