TEM results suggest the film which is almost transparent is consisted of small Al-Pb mechanical mixture with no obvious mass contrast or diffraction contrast.
TEM结果表明,整个膜层几乎呈透明状,未显示出明显的质量衬度和衍射衬度,这一结果表明膜层是由尺寸很小的合金组元所形成的机械混合物。
Under optimal synthesis conditions: n(EDA)/n(SiO2) ratio 0.250.4;n(SiO2)/n(Al2O3) ratio 2030,the final pH value 11.512.5,crystallizing time 24 h,pore structure of composite zeolites and mechanical mixture at the same n(SiO2)/n(Al2O3) ratio were characterized by N2 adsorption.
用N2吸附-脱附分析了相同硅铝比下复合分子筛与机械混合物的孔结构特征。