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Title: Thermal stability of mesoporous silica molecular sieve
Authors: Gu, G. 
Ong, P.P. 
Chu, C.
Issue Date: Jul-1999
Citation: Gu, G., Ong, P.P., Chu, C. (1999-07). Thermal stability of mesoporous silica molecular sieve. Journal of Physics and Chemistry of Solids 60 (7) : 943-947. ScholarBank@NUS Repository.
Abstract: Mesoporous silica molecular sieves (MCM-41) with pore diameters from 3 to 10 nm were synthesized by a liquid-crystal template mechanism. A surface phonon mode at around 961 cm-1, connected with the mesoporous structure was observed. At the annealing temperature of 800 °C, the mesoporous structure of the molecular sieve was found to collapse completely, based on Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD) measurements. Further annealing of MCM-41 results in transformation to the cristobalite phase of silica.
Source Title: Journal of Physics and Chemistry of Solids
ISSN: 00223697
DOI: 10.1016/S0022-3697(99)00010-4
Appears in Collections:Staff Publications

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