Hierarchically structured meso-macroporous aluminosilicates with high tetrahedral aluminium content in acid catalysed esterification of fatty acids

Hierarchically porous materials: synthesis strategies and structure design

“…The Al species can be incorporated in the tetrahedral network with the formation of Al-O-Si bonds in these aluminosilicates. [372][373][374]934…”

Hierarchical porous materials: catalytic applications

“…Acidic alumina silicates exhibiting irregularly packed macropores and framework mesopores are active for palmitic acid esterification. 137,138 Their synthesis does not employ poredirecting agents but yields 5 nm meso-and 60-80 mm macropores that outperform commercial bentonite clay, due to superior acid site accessibilty. 137…”

“…137,138 Their synthesis does not employ poredirecting agents but yields 5 nm meso-and 60-80 mm macropores that outperform commercial bentonite clay, due to superior acid site accessibilty. 137…”

Synthesis and structural properties of hierarchically structured aluminosilicates with zeolite Y (FAU) frameworks

“…The more intense peak at 64 ppm suggests that most of the aluminium atoms are located inside the inorganic porous framework on tetrahedral sites with the Si atoms, establishing Al-O-Si linkages. 73 The IR spectra of adsorbed pyridine over the surface of the HSY sample in the wavenumber region 1700-1400 cm 21 is presented in Fig. 7a, which were exchanged with NH 4 NO 3 .…”