Thermostable sulfated 2-4 nm tetragonal ZrO2 with high loading in nanotubes of SBA-15: a superior acidic catalytic material.
The high-loaded (48-60 wt.%) 2-4 nm tetragonal ZrO2 phase inserted in mesostructured silica SBA-15 by chemical solution decomposition (CSD) of Zr(n-PrO)4 and activated at 873 K displayed approximately 3 times higher capacity for surface sulfate ions and, respectively, 1.5-2.2 times higher catalytic activity per gram of SO4-ZrO2/SBA-15 composite in condensation of MeOH with t-BuOH and dehydration of isopropanol compared with the regular bulk sulfated zirconia material.
Landau
M V
MV
Blechner Center for Industrial Catalysis and Process Development, Department of Chemical Engineering, Ben-Gurion University of the Negev, Beer-Sheva-84105, Israel. mlandau@bgumail.bgu.ac.il
Titelman
L
L
Vradman
L
L
Wilson
P
P