Abstract
Mesoporous sulfated Al2O3–ZrO2 (MSAZ) catalysts with large surface areas and pore volumes after calcination at high temperature (650 °C) and with higher Al2O3 content than 20wt% were successfully prepared from a template of block copolymer (P84). The MSAZ catalysts were 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 of ammonia (NH3-TPD) and infrared spectra (IR) of adsorbed pyridine. It is shown that the resulting mesostructured sulfated Al2O3–ZrO2 samples have a well-developed textural mesoporosity. The number of acid sites present on MSAZ catalysts is higher than that on conventional sulfated zirconia, and the former catalysts are more active than the latter one for various acid-catalyzed reactions.
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This work was financially supported by the State Basic Research Project of China (2006CB806103), the National Natural Science Foundation of China (20633030 and 20303004).
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Zhao, J., Yue, Y., Hua, W. et al. Catalytic activities and properties of mesoporous sulfated Al2O3–ZrO2 . Catal Lett 116, 27–34 (2007). https://doi.org/10.1007/s10562-007-9085-x
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DOI: https://doi.org/10.1007/s10562-007-9085-x