Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
Hierarchical core/shell Zeolite Socony Mobil-five (ZSM-5) zeolite was hydrothermally postsythesized in the solution of NaOH and diammonium surfactant via a dissolution-reassembly strategy. The silica and alumina species were firstly dissolved partially from the bulky ZSM-5 crystals and then were in situ reassembled into the MFI-type nanosheets with the structure-directing effect of diammonium surfactant, attaching to the out-surface of ZSM-5 core crystals. The mesopores thus were generated in both the core and shell part, giving rise to a micropore/mesopore composite material. The micropore volume and the acidity of the resultant hybrid were well-preserved during this in situ recrystallization process. Possessing the multiple mesopores and enlarged external surface area, the core/shell ZSM-5 zeolite exhibited higher activity in the ketalation and acetalization reactions involving bulky molecules in comparison to the pristine ZSM-5.
Z H Wei, T F Xia, M H Liu, Q S Cao, Y R Xu, K K Zhu, X D Zhu. Alkaline modification of ZSM-5 catalysts for methanol aromatization: The effect of the alkaline concentration. Frontiers of Chemical Science and Engineering, 2015, 9(4): 450–460 https://doi.org/10.1007/s11705-015-1542-2
3
C Feng, K Khulbe, T Matsuura, R Farnood, A Ismail, J Membr. Recent progress in zeolite/zeotype membranes. Journal of Membrane Science and Research, 2015, 1(2): 49–72
4
B M Weckhuysen, J H Yu. Recent advances in zeolite chemistry and catalysis. Chemical Society Reviews, 2015, 44(20): 7022–7024 https://doi.org/10.1039/C5CS90100F
5
P Cnudde, K De Wispelaere, L Vanduyfhuys, R Demuynck, J Van der Mynsbrugge, M Waroquier, V Van Speybroeck. How chain length and branching influence the alkene cracking reactivity on H-ZSM-5. ACS Catalysis, 2018, 8(10): 9579–9595 https://doi.org/10.1021/acscatal.8b01779
6
A Corma. From microporous to mesoporous molecular sieve materials and their use in catalysis. Chemical Reviews, 1997, 97(6): 2373–2420 https://doi.org/10.1021/cr960406n
7
K A Tarach, K Pyra, S Siles, M Cabrera, K G Marek. Operando study reveals the superior cracking activity and stability of hierarchical ZSM-5 catalyst for the cracking of low-density polyethylene. ACS Sustainable Chemistry & Engineering, 2018, 12(3): 633–638
8
M Hartmann. Hierarchical zeolites: A proven strategy to combine shape selectivity with efficient mass transport. Angewandte Chemie International Edition, 2004, 43(44): 5880–5882 https://doi.org/10.1002/anie.200460644
9
T Tago, H Konno, Y Nakasaka, T Masuda. Size-controlled synthesis of nano-zeolites and their application to light olefin synthesis. Catalysis Surveys from Asia, 2012, 16(3): 148–163 https://doi.org/10.1007/s10563-012-9141-4
10
D R Wang, L Zhang, L Chen, H H Wu, P Wu. Postsynthesis of mesoporous ZSM-5 zeolite by piperidine-assisted desilication and its superior catalytic properties in hydrocarbon cracking. Journal of Materials Chemistry. A, Materials for Energy and Sustainability, 2015, 3(7): 3511–3521 https://doi.org/10.1039/C4TA06438K
11
S M Xu, X X Zhang, D G Cheng, F Q Chen, X H Ren. Effect of hierarchical ZSM-5 zeolite crystal size on diffusion and catalytic performance of n-heptane cracking. Frontiers of Chemical Science and Engineering, 2018, 12(4): 780–789 https://doi.org/10.1007/s11705-018-1733-8
12
J Zhu, X J Meng, F S Xiao. Mesoporous zeolites as efficient catalysts for oil refining and natural gas conversion. Frontiers of Chemical Science and Engineering, 2013, 7(2): 233–248 https://doi.org/10.1007/s11705-013-1329-2
13
K Möller, T Bein. Mesoporosity—a new dimension for zeolites. Chemical Society Reviews, 2013, 42(9): 3689–3707 https://doi.org/10.1039/c3cs35488a
14
C J H Jacobsen, C Madsen, J Houzvicka, I Schmidt, A Carlsson. Mesoporous zeolite single crystals. Journal of the American Chemical Society, 2000, 122(29): 7116–7117 https://doi.org/10.1021/ja000744c
15
I Schmidt, A Boisen, E Gustavsson, K Stahl, S Pehrson, S Dahl, A Carlsson, C J H Jacobsen. Carbon nanotube template growth of mesoporous zeolite single crystals. Chemistry of Materials, 2001, 13(12): 4416–4418 https://doi.org/10.1021/cm011206h
16
Y Tao, H Kanoh, K Kaneko. ZSM-5 monolith of uniform mesoporous channels. Journal of the American Chemical Society, 2003, 125(20): 6044–6045 https://doi.org/10.1021/ja0299405
17
F S Xiao, L F Wang, C Y Yin, K F Lin, Y Di, J X Li, R R Xu, D S Su, R Schlögl, T Yokoi, T Tatsumi. Catalytic properties of hierarchical mesoporous zeolites template with a mixture of small organic ammonium salts and mesoscale cationic polymers. Angewandte Chemie International Edition, 2006, 118(19): 3162–3165 https://doi.org/10.1002/ange.200600241
18
M Choi, H S Cho, R Srivastava, C Venkatesan, D H Choi, R Ryoo. Amphiphilic organosilane-directed synthesis of crystalline zeolite with tunable mesoporousity. Nature Materials, 2006, 5(3): 718–723 https://doi.org/10.1038/nmat1705
19
H Y Chen, M F Yang, W J Shang, Y Tong, B Y Liu, X L Han, J B Zhang, Q Q Hao, M Sun, X X Ma. Organosilane Surfactant-directed synthesis of hierarchical ZSM-5 zeolites with improved catalytic performance in methanol-to-propylene reaction. Industrial & Engineering Chemistry Research, 2018, 57(32): 10956–10966 https://doi.org/10.1021/acs.iecr.8b00849
20
M Choi, K Na, J Kim, Y Sakamoto, O Terasaki, R Ryoo. Stable single-unit-cell nanosheets of zeolite MFI as active and long-lived catalysts. Nature, 2009, 461(8288): 246–249 https://doi.org/10.1038/nature08288
21
S V Donk, A H Janssen, J H Bitter, K P Jong. Generation, characterization, and impact of mesopores in zeolite catalysts. Catalysis Reviews, 2003, 45(2): 297–319 https://doi.org/10.1081/CR-120023908
22
B D Song, Y Q Li, G Cao, Z H Sun, X Han. The effect of doping and steam treatment on the catalytic activities of nano-scale H-ZSM-5 in the methanol to gasoline reaction. Frontiers of Chemical Science and Engineering, 2017, 11(4): 564–574 https://doi.org/10.1007/s11705-017-1654-y
23
K Sadowska, A Wach, Z Olejniczak, P Kuśtrowski, J Datka. Hierarchic zeolites: Zeolite ZSM-5 desilicated with NaOH and NaOH/tetrabutylamine hydroxide. Microporous and Mesoporous Materials, 2013, 167(14): 82–88 https://doi.org/10.1016/j.micromeso.2012.03.045
24
D Verboekend, J P Ramírez. Desilication mechanism revisited: Highly mesoporous all-silica zeolites enabled through pore-directing agents. Chemistry (Weinheim an der Bergstrasse, Germany), 2011, 17(4): 1137–1147 https://doi.org/10.1002/chem.201002589
25
J P Ramírez, D Verboekend, A Bonilla, S Abello. Zeolite catalysts with tunable hierarchy factor by pore-growth moderators. Advanced Functional Materials, 2009, 19(23): 3972–3979 https://doi.org/10.1002/adfm.200901394
26
Y Han, P Pitukmanorom, L Zhao, J Y Ying. Generalized synthesis of mesoporous shells on zeolite crystals. Small, 2011, 7(3): 326–332 https://doi.org/10.1002/smll.201001180
27
D R Wang, L Xu, P Wu. Hierarchical, core/shell meso-ZSM-5@mesoporous aluminosilicate-supported Pt nanoparticles for bifunctional hydrocracking. Journal of Materials Chemistry. A, Materials for Energy and Sustainability, 2014, 2(37): 15535–15545 https://doi.org/10.1039/C4TA02740J
28
P Peng, S Z Sun, Y X Liu, X M Liu, S Mintova, Z F Yan. Combined alkali dissolution and re-assembly approach toward ZSM-5 mesostructures with extended lifetime in cumene cracking. Journal of Colloid and Interface Science, 2018, 529(9): 283–293 https://doi.org/10.1016/j.jcis.2018.06.013
29
Y Zuo, W Song, C Dai, Y He, M Wang, X Wang, X Guo. Modification of small-crystal titanium silicalite-1 with organic bases: Recrystallization and catalytic properties in the hydroxylation of phenol. Applied Catalysis A, General, 2013, 453(32): 272–279 https://doi.org/10.1016/j.apcata.2012.12.027
30
C G Li, Y Q Lu, H H Wu, P Wu, M Y He. A hierarchically core/shell-structured titanosilicate with multiple mesopore systems for highly efficient epoxidation of alkenes. Chemical Communications, 2015, 51(80): 14905–14908 https://doi.org/10.1039/C5CC05278E
E Astorino, J B Peri, R J Willey, G Busca. Spectroscopic characterization of silicalite-1 and titanium silicalite-1. Journal of Catalysis, 1995, 157(2): 482–500 https://doi.org/10.1006/jcat.1995.1313
33
A Zecchina, S Bordiga, G Spoto, L Marchese, G Petrini, G Leofanti, M Padoan. Silicalite characterization. 2. IR spectroscopy of the interaction of carbon monoxide with internal and external hydroxyl groups. Journal of Physical Chemistry, 1992, 96(12): 4991–4997 https://doi.org/10.1021/j100191a048
34
L M Kustov, V B Kazansky, S Beran, L Kubelkova, P Jiru. Adsorption of carbon monoxide on ZSM-5 zeolites. Infrared spectroscopic study and quantum-chemical calculations. Journal of Physical Chemistry, 1987, 91(20): 5247–5251 https://doi.org/10.1021/j100304a023
35
P Wu, T Komatsu, T I R Yashima. IR and MAS NMR studies on the incorporation of aluminum atoms into defect sites of dealuminated mordenites. Journal of Physical Chemistry, 1995, 99(27): 10923–10931 https://doi.org/10.1021/j100027a036
36
A Zecchina, S Bordiga, G Spoto, D Scarano, G Petrini, G Leofanti, M Padovan, C O Arean. Low-temperature Fourier-transform infrared investigation of the interaction of CO with nanosized ZSM5 and silicalite. Journal of the Chemical Society, Faraday Transactions, 1992, 88(19): 2959–2967 https://doi.org/10.1039/FT9928802959
37
P E Parry. An infrared study of pyridine adsorbed on acidic solids. Characterization of surface acidity. Journal of Catalysis, 1963, 2(5): 371–379 https://doi.org/10.1016/0021-9517(63)90102-7
38
M E Franke, U Simon. Solvate-supported proton transport in zeolites. Physical Chemistry Chemical Physics, 2004, 5(4): 465–472 https://doi.org/10.1002/cphc.200301011
39
K Suzuki, Y Aovagi, N Katada, M Choi, R Ryoo, M Niwa. Acidity and catalytic activity of mesoporous ZSM-5 in comparison with zeolite ZSM-5, Al-MCM-41 and silica-alumina. Catalysis Today, 2008, 132(1–4): 38–45 https://doi.org/10.1016/j.cattod.2007.12.010
40
B K Singh, D D Xu, L Han, J Ding, Y M Wang, S A Che. Synthesis of single-crystalline mesoporous ZSM-5 with three-dimensional pores via the self-assembly of a designed triply branched cationic surfactant. Chemistry of Materials, 2014, 26(24): 7183–7188 https://doi.org/10.1021/cm503919h
41
J W Jung, C B Jo, F M Mota, J Cho, R Ryoo. Acid catalytic function of mesopore walls generated by MFI zeolite desilication in comparison with external surfaces of MFI zeolite nanosheet. Applied Catalysis A, General, 2015, 492(8): 68–75 https://doi.org/10.1016/j.apcata.2014.12.019