Abstract
Thermal evacuation of a surfactant template from pure siliceous MCM-41 and MCM-41 containing aluminium in hydrogen flow was investigated. Micelle templated MCM-41 were prepared using hexadecyltrimethylammonium bromide (CTAB). The products of thermal surfactant degradation outside and inside pores were identified at various temperatures using 13C solid-state nuclear magnetic resonance (NMR) spectroscopy, gas chromatography coupled with mass spectrometer (GC-MS) and temperature programmed desorption coupled with mass spectrometer (TPD-MS). The GC-MS and 13C MAS NMR results obtained from this study provide an insight into the mechanism of surfactant transformation during MCM-41 synthesis on molecular level.
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Goworek, J., Kierys, A., Gac, W. et al. Thermal degradation of CTAB in as-synthesized MCM-41. J Therm Anal Calorim 96, 375–382 (2009). https://doi.org/10.1007/s10973-008-9055-6
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DOI: https://doi.org/10.1007/s10973-008-9055-6