shows SEM and TEM inspection of the TF-ZSM-5 and TPA-ZSM-5 samples. The crystal of the template free sample showed a hexagonal prism shape with a crystal size of about 4.0 μm; in contrast, the template-directed sample had a smaller crystal size of 2 μm. Because of the different structure directing effect of Na+ and TPA+, the surface of the template-free sample was much coarser than that of the template directed sample. Furthermore, the TF-ZSM-5 was wrapped layer by layer; it demonstrated that the growth direction might be outward, wrapped layer by layer. From the TEM images (Fig. 2 b and c), well-ordered lattice fringes in the high-magnification could be observed, which demonstrated the high crystallinity of TF-ZSM-5.