American Chemical Society, Journal of Physical Chemistry C, 21(113), p. 9305-9308, 2009
DOI: 10.1021/jp900989c
Full text: Download
Selected area electron diffraction and high-resolution electron microscopy have been used to fully characterize ITQ-13 and ITQ-34. ITQ-13 is made up by a stacking sequence of AAAA... layers along the alpha-axis, while the stacking sequence is ABAB... for ITQ-34. These polytypes can intergrow to crystallize as new materials with different concentrations of each polytype as observed by X-ray powder diffraction. High-resolution images show that in all compositional range both materials intergrow in a disordered sequence along the alpha direction of the ITQ-13.