Aa. Romero et al., SYNTHESIS AND CHARACTERIZATION OF THE MESOPOROUS SILICATE MOLECULAR-SIEVE MCM-48, JOURNAL OF PHYSICAL CHEMISTRY B, 101(27), 1997, pp. 5294-5300
We have used powder X-ray diffraction, diffuse reflectance Fourier-tra
nsform infrared, Si-29 MAS NMR, N-2 adsorption, and transmission elect
ron microscopy to examine the role of the concentration of silica, the
surfactant, and the reaction time in the synthesis of high-quality si
lica mesoporous molecular sieve MCM-48, The XRD patterns of the produc
ts are consistent with the hexagonal --> cubic --> lamellar phase tran
sformation.