Table 4

Comparison of various textural properties of the commercial boehmites under study.

TH500 D40 D10F4 C200
(Average size)XRD 18.2 nm 25.3 nm 18.2 nm 19.2 nm
(Average size)TEM 42 ± 12 nm 42 ± 13 nm 47 ± 17 nm 41 ± 12 nm
Average number of particles in an aggregate 27 ± 8 53 ± 5 39 ± 7 26 ± 6
Predominant morphology(s)
Predominant crystalline interaction(s) Lateral-basal Lateral Lateral-basal Lateral Combination of basal and lateral facets
Type of aggregate Bulkier Bulkier and quite homogenous Bulkier Combination
Average shape of an aggregate Difficult to distinguish Difficult to distinguish Oblate ellipsoid with aspect ratio, β << 1 Prolate ellipsoid with aspect ratio, β >> 1

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