TY - JOUR
T1 - Synthesis and physico-chemical characterization of Beta zeolite catalysts
T2 - Evaluation of catalytic properties in Prins cyclization of (−)-isopulegol
AU - Zaykovskaya, Anna O.
AU - Kumar, Narendra
AU - Kholkina, Ekaterina A.
AU - Li-Zhulanov, Nikolai S.
AU - Mäki-Arvela, Päivi
AU - Aho, Atte
AU - Peltonen, Janne
AU - Peurla, Markus
AU - Heinmaa, Ivo
AU - Kusema, Bright T.
AU - Streiff, Stéphane
AU - Murzin, Dmitry Yu
N1 - Funding Information:
Solvay is gratefully acknowledged for funding. The research visit of Nikolai Li-Zhulanov to Åbo Akademi University was supported by the EDUFI Fellowship programme, funded by the Finnish National Agency for Education . Ivo Heinmaa has been supported by the Estonian Science Council Grant IUT23-7 and the European Regional Development Fund Grant TK134 .
Publisher Copyright:
© 2020 Elsevier Inc.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/8/1
Y1 - 2020/8/1
N2 - Synthesis of Beta zeolite catalysts was carried out using two different methods. The influence of such parameters as synthesis time and temperature, gel composition and gel ripening on the physico-chemical and catalytic properties of Beta zeolite catalysts was studied. A range of analytical methods was applied in this work including scanning and transmission electron microscopies, energy dispersive X-ray spectroscopy, X-ray powder diffraction, nuclear magnetic resonance spectroscopy – 27A1-MAS-NMR and 29Si-MAS-NMR, nitrogen physisorption, Fourier transform infrared spectroscopy and inductively coupled plasma optical emission spectrometry. The sodium forms of Beta zeolites were transformed to the proton forms H-Beta by ion-exchange using aqueous solutions of NH4NO3 and thereafter evaluated in Prins cyclization of (−)-isopulegol with benzaldehyde. The best catalyst synthesized at 150 °C in the rotation mode for 17 h possessing an optimal combination of morphological and structural properties as well as concentration of acid sites demonstrated high (−)-isopulegol conversion (93%) along with high selectivity to the desired product (79%).
AB - Synthesis of Beta zeolite catalysts was carried out using two different methods. The influence of such parameters as synthesis time and temperature, gel composition and gel ripening on the physico-chemical and catalytic properties of Beta zeolite catalysts was studied. A range of analytical methods was applied in this work including scanning and transmission electron microscopies, energy dispersive X-ray spectroscopy, X-ray powder diffraction, nuclear magnetic resonance spectroscopy – 27A1-MAS-NMR and 29Si-MAS-NMR, nitrogen physisorption, Fourier transform infrared spectroscopy and inductively coupled plasma optical emission spectrometry. The sodium forms of Beta zeolites were transformed to the proton forms H-Beta by ion-exchange using aqueous solutions of NH4NO3 and thereafter evaluated in Prins cyclization of (−)-isopulegol with benzaldehyde. The best catalyst synthesized at 150 °C in the rotation mode for 17 h possessing an optimal combination of morphological and structural properties as well as concentration of acid sites demonstrated high (−)-isopulegol conversion (93%) along with high selectivity to the desired product (79%).
KW - Beta zeolites
KW - Catalyst synthesis
KW - Catalytic materials
KW - Characterization
KW - Prins cyclization
UR - http://www.scopus.com/inward/record.url?scp=85083739851&partnerID=8YFLogxK
U2 - 10.1016/j.micromeso.2020.110236
DO - 10.1016/j.micromeso.2020.110236
M3 - Article
AN - SCOPUS:85083739851
VL - 302
JO - Microporous and Mesoporous Materials
JF - Microporous and Mesoporous Materials
SN - 1387-1811
M1 - 110236
ER -