摘要
本文研究了采用Sol－Gel法制备用于H2分离的Pd／γ-Al2O3复合膜的工艺过程，将含Pd2+的源物质直接加入到稳定、pH适宜的勃姆石（γ－AlOOH）溶液中，用直接浸取的方法在多孔α－Al2O3衬底上成膜．BET测试表明，复合膜的平均孔径为25～4、0nm．分析了Pd的含量和工艺参数对复合膜的形貌和结构的影响，并对膜材料进行了SEM、XRD和N2透气性能研究．
The preparation process of Pd/γ-Al2O3 composite membrane for selective hydrogen separation was studied, direct impregnation of pd was achieved by mixing the boehmite sol(γ-AlOOH) with a Pd precursor, followed by ultrasonic dispersing Pd particles uniformly throughout the membrane.The average pore diameter measured by BET was 2.5~4.0nm, SEM, XRD and separation tests were conducted in order to evaluate the properties of the composite membrane.
出处
《无机材料学报》
SCIE
EI
CAS
CSCD
北大核心
1999年第3期504-508,共5页
Journal of Inorganic Materials
