摘要
运用小角X-射线散射(SAXS)技术,定量地分析了杂化介孔二氧化硅产物SiO2骨架、介观孔洞以及纳米结构整体的分形维数在陈化处理过程中的演变过程。结果表明,SiO2骨架电子不平均区尺度(E)、孔洞回旋半径(Rg)和整体质量分形(DM)尺度数目都呈逐渐减少的趋势,标志着在陈化处理过程中产物整体结构规整程度逐步得到提高。
Small angle X-ray scattering（SAXS） technology was adopted to investigate the evolution of silica framework, meso-pores and structure fractal dimensions of hybrid mesoporous silica during aging treatment. The results showed decreasing trends for the sizes of electronics non-uniform areas （ E）, pore radius of gyration （ Rg ） and mass fractal dimensions（DM） , which indicated the continuous improving for structural uniformity of the hybrid mesoporous silica within the aging treatment.
出处
《合成材料老化与应用》
2006年第1期8-11,23,共5页
Synthetic Materials Aging and Application
关键词
介孔二氧化硅
SAXS表征
结构演变
mesoporous silica, SAXS characterization, structural evolution
