Friedel–Crafts alkylation properties of aluminosilica SBA-15 meso/macroporous monoliths and mesoporous powders☆

Acid‐Functionalized Mesostructured Aluminosilica for Hydrophilic Proton Conduction Membranes

“…Following calcination or solvent extraction to remove the structure-directing block-copolymer species, post-synthesis grafting of aluminosilica moieties onto the interior mesopore walls introduces both hydrophilic and acidic surface properties. [38,39] While mesoporous silica or aluminosilica alone have relatively poor proton conduction properties, [40] incorporation of strong acid moieties, such as perfluorosulfonic acid species, onto their interior mesopore surfaces and channels results in films with high and stable proton conductivities, even at temperatures above 150°C. The preparation of a heterogeneous membrane material that combines high mesoscale ordering, crack-free inorganic film integrity, high hydrophilicity, and high proton conductivity, however, is exceedingly difficult to achieve in a single processing step.…”

Polystyrene sulphonic acid resins with enhanced acid strength via macromolecular self-assembly within confined nanospace

“…The catalytic performance of different samples was also tested in Friedel-Crafts alkylation of toluene by benzyl alcohol, an important industry process to produce diphenyl compounds that are essential intermediates for pharmaceutical and fine chemical production [46][47][48] . All acid catalysts could catalyse this reaction with methyl diphenylmethanes as desired product and dibenzyl ether as side product (Supplementary Fig.…”

On the origin of blue and UV emission bands in mesoporous silica

“…The versatility of the sol-gel method is nowadays exploited to obtain nanosystems in a variety of morphologies (fibers [11], thin films [12], monoliths [13]). Indeed, the possibility of fine-tuning their shape, size, and morphology, depending on the applied synthesis strategy [14,15], is boosting the scientific and technological interest in nanosized silica.…”