Assessment of surface acidity in mesoporous materials containing aluminum and titanium

The surface acidity of mesoporous molecular sieves of aluminum and titanium was evaluated using four different techniques: n-butylamine volumetry, cyclohexylamine thermodesorption, temperature-programmed desorption of ammonia and adsorption of pyridine. The nature, strength and concentration of the...

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Veröffentlicht in:	Applied surface science 2009-04, Vol.255 (12), p.6205-6209
Hauptverfasser:	Araújo, Rinaldo S., Maia, Débora A.S., Azevedo, Diana C.S., Cavalcante, Célio L., Rodríguez-Castellón, E., Jimenez-Lopez, A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Adsorption and desorption kinetics evaporation and condensation Brönsted Condensed matter: structure, mechanical and thermal properties Cross-disciplinary physics: materials science rheology Exact sciences and technology HMS Lewis Materials science MCM Molecular nanostructures Nanoscale materials and structures: fabrication and characterization Physics Redox activity Solid-fluid interfaces Surfaces and interfaces thin films and whiskers (structure and nonelectronic properties) Titanium
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