Catalytic activities and properties of mesoporous sulfated Al2O3–ZrO2
作者： Jie Zhao , Yinghong Yue , Weiming Hua , Zi Gao
DOI: 10.1007/S10562-007-9085-X
关键词: Heterogeneous catalysis 、 Mesoporous material 、 Chemistry 、 Infrared spectroscopy 、 Desorption 、 Catalysis 、 Adsorption 、 Calcination 、 Inorganic chemistry 、 Thermogravimetric analysis 、 Nuclear chemistry
摘要: Mesoporous sulfated Al2O3–ZrO2 (MSAZ) catalysts with large surface areas and pore volumes after calcination at high temperature (650 °C) higher Al2O3 content than 20wt% were successfully prepared from a template of block copolymer (P84). The MSAZ characterized by X-ray diffraction (XRD), N2 adsorption, transmission electron microscopy (TEM), 27Al magic-angle spinning nuclear magnetic resonance (MAS NMR), thermogravimetric analysis (TG–DTG), temperature-programmed desorption ammonia (NH3-TPD) infrared spectra (IR) adsorbed pyridine. It is shown that the resulting mesostructured samples have well-developed textural mesoporosity. number acid sites present on conventional zirconia, former are more active latter one for various acid-catalyzed reactions.
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