Figure 2

FESEM images with magnifications of 200 and 1 µm (a–c) grains deposited by rubbing on the mullite support surface, (e–g) secondary growth of MFI crystals on the mullite support surface and Cross-sectional FESEM images (d) grains deposited by rubbing on the surface of the mullite support before secondary growth (h) growth of MFI crystals on the surface of the mullite support after secondary growth.