Table 1. Characterization of the Chemical, Physical, and Electronic Properties of Synthesized M-BEA.
| catalyst | M wt %a | Si:Ma | Si:Ala | band gap (eV)b | ΦIRc | BET surface area (m2 g–1)d | micropore volume (cm3 g–1)e | active metal (%)f |
|---|---|---|---|---|---|---|---|---|
| Al-BEA-OH | 0.63 | 69 | 69 | 1.44 | 602 ± 11 | 0.145 | 97 ± 4 | |
| Al-BEA-F | 0.72 | 61 | 61 | 0.19 | 516 ± 13 | 0.172 | 92 ± 3 | |
| Zr-BEA-OH | 1.03 | 131 | 3980 | 5.8 | 1.41 | 536 ± 12 | 0.142 | 104 ± 7 |
| Zr-BEA-F | 1.44 | 103 | 4090 | 5.7 | 0.21 | 522 ± 13 | 0.170 | 96 ± 2 |
a
Measured with ICP-OES.
b
Extracted from leading edge of Tauc plot from DRUV–vis.
c
Calculated from infrared transmission spectra of dehydrated M-BEA samples.
d
Determined from Ar physisorption.
e
Calculated using the t-plots from Ar physisorption.
f
Measured from in situ 1,2-diphenylethylenediamine site titrations.