Understanding The Brønsted Acidity of Sapo-5, Sapo-17, Sapo-18 and SAPO-34 and Their Catalytic Performance for Methanol Conversion to Hydrocarbons
作者： J. Chen , P.A. Wright , S. Natarajan , J.M. Thomas
DOI: 10.1016/S0167-2991(08)63726-X
关键词: Inorganic chemistry 、 Ammonia 、 Spectroscopy 、 Chemistry 、 Catalysis 、 Selectivity 、 Life time 、 Diffuse reflectance infrared fourier transform 、 Brønsted–Lowry acid–base theory 、 Methanol
摘要: SAPO-5, SAPO-17, SAPO-18 and SAPO-34 were successfully synthesised. The bridging Si-OH-Al groups (Bronsted acid sites) in these SAPOs observed by means of diffuse reflectance infrared Fourier transform (DRIFT) spectroscopy. On the basis temperature-programmed-desorption (TPD) ammonia, it is inferred that strength Bronsted sites order SAPO-5
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