Table 5. Properties of Fresh Sn-In-MCM-41 and after Each Catalytic Cycle.

	fresh	cycle 1	cycle 2	cycle 3	cycle 4
BET surface area [m2·g−1]	899 ± 15	595 ± 8	536 ± 9	465 ± 7	448 ± 7
pore volumea [cm3·g−1]	0.42	0.29	0.26	0.23	0.22
pore diameterb [nm]	1.90	1.93	1.96	1.96	1.95
Sn XRF [wt %]	1.88 ± 0.04	1.74 ± 0.04	1.72 ± 0.05	1.67 ± 0.03	1.64 ± 0.04
In XRF [wt %]	1.22 ± 0.02	1.13 ± 0.02	1.10 ± 0.01	1.08 ± 0.01	1.06 ± 0.02
Si/Sn XRF	102	109	110	114	116
Si/In XRF	152	163	167	170	174
Si/Sn XPS	52				67
Si/In XPS	23				46

^aAt P/P₀ = 0.97.

^b4 V/A by BET.