caa a22 4500 378939254 CHVBK 20180305123648.0 cr unu---uuuuu 161128e20040930xx s 000 0 eng 10.1351/pac200476091647 doi (NATIONALLICENCE)gruyter-10.1351/pac200476091647 Design of composite micro/mesoporous molecular sieve catalysts [Elektronische Daten] [I. I. Ivanova, A. S. Kuznetsov, V. V. Yuschenko, E. E. Knyazeva] Two series of composite micro/mesoporous materials with different contributions of micro- and mesoporosity were prepared by dealumination and recrystallization of mordenite zeolite. The materials were characterized by X-ray diffraction, infrared spectroscopy, 27Al magic angle spinning (MAS) NMR, nitrogen adsorption-desorption, and temperature-programmed desorption of ammonia (TPD NH3). Catalytic properties were studied in transalkylation of biphenyl with diisopropylbenzene. Both types of composite materials showed remarkably high activity, stability, and selectivity toward formation of di-isopropylbiphenyls with respect to both pure microporous and mesoporous materials. The effect is due to high zeolitic acidity combined with improved accessibility of active sites and transport of bulky molecules provided by mesopores. © 2013 Walter de Gruyter GmbH, Berlin/Boston Ivanova I. I. Department of Chemistry, Moscow State University, Lenin Hills, Moscow 119992, Russia aut Kuznetsov A. S. Department of Chemistry, Moscow State University, Lenin Hills, Moscow 119992, Russia aut Yuschenko V. V. Department of Chemistry, Moscow State University, Lenin Hills, Moscow 119992, Russia aut Knyazeva E. E. Department of Chemistry, Moscow State University, Lenin Hills, Moscow 119992, Russia aut Pure and Applied Chemistry De Gruyter 76/9(2004-09-30), 1647-1657 0033-4545 76:9<1647 2004 76 pac https://doi.org/10.1351/pac200476091647 text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.1351/pac200476091647 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ivanova I. I. Department of Chemistry, Moscow State University, Lenin Hills, Moscow 119992, Russia aut NATIONALLICENCE 700 1- Kuznetsov A. S. Department of Chemistry, Moscow State University, Lenin Hills, Moscow 119992, Russia aut NATIONALLICENCE 700 1- Yuschenko V. V. Department of Chemistry, Moscow State University, Lenin Hills, Moscow 119992, Russia aut NATIONALLICENCE 700 1- Knyazeva E. E. Department of Chemistry, Moscow State University, Lenin Hills, Moscow 119992, Russia aut NATIONALLICENCE 773 0- Pure and Applied Chemistry De Gruyter 76/9(2004-09-30), 1647-1657 0033-4545 76:9<1647 2004 76 pac CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter