Pore size control of porous silica by sol-gel process |
| |
| Authors: | Sasa Wang Hongling Liu Liangying Zhang Xi Yao |
| |
| Affiliation: |
a Electronic Materials Research Laboratory (EMRL), Xi'an Jiaotong University, Xi'an, China |
| |
| Abstract: | Porous silica glass was prepared by sol-gel process from tetraethoxysilane (TEOS). The effects of solvents (water, ethanol), drying condition, heat treatment temperature on specific surface area and pore size distribution of porous silica were investigated. Gelation process accelerates with an increase of H2O content, while retards with the increase of ethanol amount. Structure changes during heat treatment were studied by means of DTA, XRD. TEM micrographs show that the gel particles shrink after heated at 500°C, thus the average pore size decreases. |
| |
| Keywords: | |
| 本文献已被 InformaWorld 等数据库收录！ |
|
