Synthesis and catalytic properties of hierarchical micro/mesoporous materials based on FER zeolite

Yu.P. Khitev (1) , Yu.G. Kolyagin (1) , I.I. Ivanova (1) , O.A. Ponomareva (1) , F. Thibault-Starzyk (2) , J.-P. Gilson (2) , C. Fernandez (2) , F. Fajula (3)

1 Moscow State University
2 LCS - Laboratoire catalyse et spectrochimie
3 ICGM ICMMM - Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier

Hierarchical zeolitic catalysts with varying ratios of micro- and mesoporosity were prepared by recrystallization of ferrierite (FER) in alkaline solution in the presence of cetyltrimethylammonium bromide. The catalysts were characterized by XRD, TPD-NH3, FT-IR, nitrogen adsorption-desorption, SEM, TEM. The influence of alkali concentration on the distribution of micro- and mesopores is discussed. The recrystallization process led to a significant increase of accessibility of the acid sites, together with a decrease of the total acidity. The catalytic properties were investigated in 1-butene isomerization. All recrystallized materials showed improved catalytic activity and selectivity in isomerization.

Mots clés: Ferrierite; micro/mesoporous catalysts; Zeolites

Domaines: Matériaux

Yu.P. Khitev, Yu.G. Kolyagin, I.I. Ivanova, O.A. Ponomareva, F. Thibault-Starzyk, et al.. Synthesis and catalytic properties of hierarchical micro/mesoporous materials based on FER zeolite. Microporous and Mesoporous Materials, 2011, 146, pp.201-207. ⟨10.1016/j.micromeso.2011.05.003⟩. ⟨hal-00645124⟩