Paper Title:
Preparation and Formation Mechanisms of Monodispersed Mesoporous SiO2 Microspheres by the PICA Method
  Abstract

Monodispersed mesoporous silicon dioxide microspheres were prepared by polymerization-induced colloid aggregation (PICA) method and calcined at 850oC. The prepared samples were characterized with scanning electron microscopy (SEM), thermogravimetry (TG) and BET surface areas. The results showed that the obtained SiO2 microspheres had an average diameter of about 2.0 µm, a surface area of 253.3 m2g-1, an average pore volume of 0.62 mLg-1, and an average pore diameter of 7.9 nm. The formation mechanism of SiO2 spherical particles was discussed.

  Info
Periodical
Key Engineering Materials (Volumes 280-283)
Edited by
Wei Pan, Jianghong Gong, Chang-Chun Ge and Jing-Feng Li
Pages
1153-1156
DOI
10.4028/www.scientific.net/KEM.280-283.1153
Citation
L. Zhao, J. G. Yu, R. Guo, B. Cheng, "Preparation and Formation Mechanisms of Monodispersed Mesoporous SiO2 Microspheres by the PICA Method", Key Engineering Materials, Vols. 280-283, pp. 1153-1156, 2005
Online since
February 2007
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$32.00
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