Samples of MCM-48 were obtained in reaction mixture with molar ratios of the starting materials 1TEOS : xCTAB :
0.4NaOH : 112H2Owhere the values of x = 0.1-1.0 were chosen with the aim of determining concentration fields for templating structure formation of MCM-48, since in most methods minimal molar ratios of CTAB and TEOS equal to 0.4-0.5 were used