Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1651269 | Materials Letters | 2007 | 4 Pages |
Abstract
Mesoporous SiO2 sieve and SiO2 nanoparticles were synthesized by a traditional method in the presence and absence of tri-block copolymer surfactant P123 as structure directed agent respectively. The characterization results show that the mesoporous SiO2 sieve has larger specific area (789 m2/g) than SiO2 nanoparticles (373 m2/g), and there exists a substantial difference in the N2 adsorption curves between the two samples. A speculative scheme shows that the formation of bottleneck during the N2 adsorption process of mesoporous SiO2 sieve should be responsible for the phenomenon.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Xingtao Jia, Wen He, Xudong Zhang,