| Abstract
| - Mesoporous silica materials with pore structures such as 2D hexagonal close packed, bicontinuous cubic,lamellar, sponge, wormholelike, and rectangular have been made by using surfactant templating sol−gelprocesses. However, there are still some “intermediate” phases, in particular mesh phases, that are formedby surfactants but which have not been made into analogous silica pore structures. Here, we describe theone-step synthesis of mesoporous silica with a mesh phase pore structure. The cationic fluorinated surfactant1,1,2,2-tetrahydroperfluorodecylpyridinium chloride (HFDePC) is used as the template. Like manyfluorinated surfactants, HFDePC forms intermediate phases in water (including a mesh phase) over awider range of compositions than do hydrocarbon surfactants. The materials produced by this techniqueare novel elongated particles in which the layers of the mesh phase are oriented orthogonal to the mainaxis of the particles.
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