Sample names and physicochemical properties of the zeolite Y and beta materials under study.
Sample | S BET a (m2 g−1) | S meso b (m2 g−1) | V total c (cm3 g−1) | V micro d (cm3 g−1) | Si/Al (bulk)e | Al content ratiof | Relative crystallinityg (%) | a 0 h (Å) |
---|---|---|---|---|---|---|---|---|
Y | 775 | 143 | 0.48 | 0.24 | 17.7 | 1.00 | 100 | 24.32 |
Y-AL2 | 1168 | 284 | 0.76 | 0.34 | 119.1 | 0.15 | 88.5 | 24.22 |
Y-HT2-AL2 | 802 | 218 | 0.52 | 0.22 | 111.7 | 0.11 | 97.1 | 24.23 |
Y-HT6-AL2 | 759 | 218 | 0.57 | 0.20 | 104.7 | 0.19 | 100.1 | 24.24 |
Y-HT24-AL2 | 657 | 190 | 0.53 | 0.18 | 77.1 | 0.21 | 85.3 | 24.26 |
BH | 510 | 190 | 0.82 | 0.12 | 14.4 | 1.00 | 100.0 | — |
BH-AL2 | 524 | 210 | 0.81 | 0.12 | 68.2 | 0.21 | 89.8 | — |
BH-HT2-AL2 | 497 | 198 | 0.77 | 0.12 | 65.8 | 0.22 | 101.3 | — |
BH-HT6-AL2 | 520 | 209 | 0.75 | 0.12 | 61.4 | 0.23 | 110.2 | — |
BH-HT24-AL2 | 521 | 210 | 0.74 | 0.12 | 55.0 | 0.26 | 104.5 | — |
BET surface area determined from physisorption measurements.
Mesopore surface area (t-plot) determined from physisorption measurements.
Total pore volume determined from physisorption measurements.
Micropore volume determined from physisorption measurements.
From the Inductively Coupled Plasma-Optical Emission Spectroscopy (ICP-OES) measurements.
Aluminium content ratio compared to parent zeolite, based on ICP-OES measurements.
Via X-ray Diffraction (XRD) measurements.
Via Rietveld refinement of the X-ray diffractograms.