Advanced Materials

Preparation of Highly Ordered Monolithic Super-Microporous Lamellar Silica with a Room-Temperature Ionic Liquid as Template via the Nanocasting Technique


  • Y. Z. appreciates the Alexander von Humboldt (AvH) Foundation for granting a research fellowship. Dr. Jan H. Schattka is thanked for helpful suggestions regarding the work. Arne Thomas is acknowledged for the TEM measurements.


A special room-temperature ionic liquid, 1-hexadecyl-3-methyl-imidazolium chloride, is used as a template to prepare monolithic super-microporous silica with lamellar order (monolith in Figure) via a nanocasting technique. The silica walls of the synthesized product are arranged parallel to each other, displaying a regular structure with an interlayer distance, pore diameter, and wall system thickness of about 2.7 nm, 1.3 nm, and 1.4 nm, respectively.