Thermal Alteration in Adsorption Sites over SAPO‐34 Zeolite

Zeolites have found tremendous applications in the chemical industry. However, dynamic nature of their active sites under flow adsorbate molecules for adsorption and catalysis is unclear, especially operando conditions, which could be different from as-synthesized structures. In present study, we report a structural transformation adsorptive SAPO-34 zeolite by using acetone as probe molecule various temperatures. The combination solid-state nuclear magnetic resonance, situ variable-temperature synchrotron X-ray diffraction, diffuse-reflectance infrared Fourier-transform spectroscopy allow clear identification quantification that chemisorption can convert classical Brønsted acid site mode to an induced Frustrated Lewis Pairs at increasing Such facile conversion also supported calculations ab-initio molecular-dynamics simulations. This work sheds new light on importance alteration zeolites with adsorbates elevated