Preparation of Mesoporous SiO₂-Pillared Lamellar Titanoniobate Catalysts for Bioethanol Dehydration

Figure 3

SEM micrographs of layered perovskites intercalated with different species: (a) parent KTN; (b) HTN; (c) nBTN; (d) CTATN, and (e) SiO₂TN.

(a)

(b)

(c)

(d)

(e)