Synthesis and characterisation of ZSM-5/SBA-15 composite material
by Le Thi Hoai Nam; Tran Quang Vinh; Nguyen Duc Hoa
International Journal of Nanotechnology (IJNT), Vol. 12, No. 5/6/7, 2015

Abstract: ZSM-5/SBA-15 composite materials were successfully synthesised by a hydrothermal treatment method including three steps: 1) microporous phase seed formation (seed 1); 2) precursor addition (seed 2); 3) formation of the ZSM-5/SBA-15 composite material. The obtained samples were characterised by XRD, SEM, TEM, TPD-NH3, 27Al MAS NMR, 1H MAS NMR, and N2adsorption/desorption. It could be shown that the formation of both micro- and mesopores strongly depends on the duration and temperature of the above-mentioned crystallisation steps. The results obtained from XRD, SEM, TEM, and N2 adsorption/desorption indicated that the ZSM-5/SBA-15 composite materials have both microporous and mesoporous properties. The composite nature of the samples was demonstrated by SEM and TEM studies. The high acid sites number and strength of the ZSM-5/SBA-15 composite materials were shown using 27Al MAS NMR, 1H MAS NMR, and TPD-NH3 methods.

Online publication date: Fri, 06-Mar-2015

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