Flaky, ultrathin mesoporous silica laminas with uniform mesopores, hav
e been synthesized by hydrolysis of acidic tetraethylorthosilicate sol
ution with dodecylamine or, decylamine surfactant. The materials have
BET surface areas of 600-850 m(2)/g and mesopore diameters of ca. 3-4
nm after the samples were calcined at 500 degrees C.