A striking contrast in microstructure between monolithic alumina and
all other nanocomposites was the presence of subgrain boundaries (small
angle grain boundaries) which are absent in the monolithic
alumina.
The fact that they are absent at higher Chol content could be an
indication that that the lipids are not packing in the way that pure lipids
would pack.
Thus, TBHP might be used as an initiator in the oxidation of isobutene
being itself a product, it would not lead to products that would otherwise
be absent.