Synthesis and characterization of super-microporous material with enhanced hydrothermal stability |
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| Authors: | Shujie Wu Ke Song Jingqi Guan Qiubin Kan |
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| Affiliation: | (1) Department of Applied Physics, University of Eastern Finland, P.O. Box 1627, 70211 Kuopio, Finland;(2) Department of Physics and Astronomy, University of Turku, 20014 Turku, Finland; |
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| Abstract: | Super-microporouos silicon material with high hydrothermal stability denoted as MCM-41-T has been prepared from mesoporous
MCM-41 by high temperature treatment. The structural and chemical property of MCM-41-T has been characterized by X-ray diffraction,
transmission electron microscopy, N2 adsorption-desorption, infrared spectroscopy and 29Si MAS NMR. The characteristic results show that Si-OH groups are forced to condense by high temperature treatment, and the
pore size of MCM-41-T is around 1.5 nm in the super-microporous range. Compared with the original material MCM-41, the hydrothermal
stability of MCM-41-T has been significantly enhanced. |
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