Review Article

Layered Materials with Catalytic Applications: Pillared and Delaminated Zeolites from MWW Precursors

Table 1

Lewis y Brönsted acid sites measured by pyridine adsorption-desorption method for 3D MWW and ITQ-2 materialsa.

SampleAcidity (μmolPy·g−1)
150°C250°C350°C
LewisBrönstedLewisBrönstedLewisBrönsted

MWW233915241415
ITQ-223212015159

a Absorption coefficients: Lewis (1455 cm−1): 2.22 cm/μmol and Brönsted (1545 cm−1): 1.67 cm/μmol [29].