Research Article

Hierarchical Low Si/Al Ratio Ferrierite Zeolite by Sequential Postsynthesis Treatment: Catalytic Assessment in Dehydration Reaction of Methanol

Figure 1

XRD pattern in the 2 Theta range 20–30° of parent (P), treated with NaAlO2 1 M for 6 h (D1) and with NaAlO2 2 M for 3 h (C2).