Self-assembly of monodispersed silica nano-spheres with a closed-pore mesostructure

摘要: Monodisperse closed-pore silica spheres with small pore diameters have been prepared through a simple self-assembly approach. The were synthesized in near neutral conditions, using cetyltrimethyl ammonium bromide (C16TAB) as template. products show spherical morphology uniform size of ∼120 nm diameter, which are formed by the dense packing coated micelles ∼5 diameter and ∼3 isolated interior space. It is shown that use cationic surfactant synthetic conditions stabilize responsible for formation mesostructure. Considering silica-coated micelles, building blocks to mesostructure, smaller compared those previous reports, it expected our approach may be extended prepare functionalized materials potential applications low dielectric constant insulators microelectronics industry.