4. RESULTS AND DISCUSSION
4.1 Physicochemical Properties
The SEM images of the prepared supports with various macropore size are
shown in Figure 2. The sample of S0 exhibited packed aggregates of
silica particles (no macropore), while the other samples (S50
~ S6000) exhibited a honeycomb structure with
macropores. From S50 to S6000, the size of the macropore increased
gradually, and the results of SEM observations were in good agreement
with those of mercury intrusion porosimetry as shown in Figure 1S(a)
(see Supporting Information).