The synthesis of mesoporous zeolite beta aggregates without the use of second template and additive

被引：12
作者：
Liu, Shu-Ping [1 ]
Chen, Li [1 ]
Wang, Yi Meng [1 ]
机构：
[1] E China Normal Univ, Dept Chem, Shanghai Key Lab Green Chem & Chem Proc, Shanghai 200062, Peoples R China
来源：
SOLID STATE SCIENCES | 2010年 / 12卷 / 07期
基金：
美国国家科学基金会;
关键词：
Zeolite beta; Particle-particle aggregation; Mesopore; CATALYTIC-ACTIVITY; HYDROTHERMAL SYNTHESIS; EXTERNAL SURFACE; ROOM-TEMPERATURE; ENHANCED ACIDITY; ALKYLATION; PHENOL; GEL; ALUMINOSILICATES; ISOMERIZATION;
D O I：
10.1016/j.solidstatesciences.2010.04.025
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Zeolite Beta Aggregates have been synthesized by the self-assembly of Beta nanoparticles without the use of second template or additive, where the large zeolitic aggregates avoided the filtration difficulties and the presence of mesopore reduced the diffusion limitation. The samples were characterized by XRD, N-2-sorption, SEM, TEM, thermogravimetric analysis, IR spectroscopy and temperature programmed desorption of ammonia. The results showed that the SiO2/Al2O3 ratio played a key role on the particle size, mesopore volume and particle particle aggregation process of zeolite Beta. The sample with SiO2/Al2O3 ratio below 60 had improved textual and acidic properties and exhibited the best catalytic activity to the alkylation of phenol with tert-butanol. (C) 2010 Elsevier Masson SAS. All rights reserved.
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收藏
页码：1070 / 1075
页数：6
相关论文
共 41 条
[1]   Zeolite Beta with hierarchical porosity prepared from organofunctionalized seeds [J].
Aguadoa, J. ;
Serrano, D. P. ;
Rodriguez, J. M. .
MICROPOROUS AND MESOPOROUS MATERIALS, 2008, 115 (03) :504-513
[2]   Mechanisms of heptane isomerization on bifunctional Pd/H-Beta zeolites [J].
Blomsma, E ;
Martens, JA ;
Jacobs, PA .
JOURNAL OF CATALYSIS, 1996, 159 (02) :323-331
[3]   Preparation of aluminum-rich Beta zeolite [J].
Borade, RB ;
Clearfield, A .
MICROPOROUS MATERIALS, 1996, 5 (05) :289-297
[4]   Characterization of nanocrystalline zeolite Beta [J].
Camblor, MA ;
Corma, A ;
Valencia, S .
MICROPOROUS AND MESOPOROUS MATERIALS, 1998, 25 (1-3) :59-74
[5]  
Camblor MA, 1997, STUD SURF SCI CATAL, V105, P341
[6]   The synthesis of a hierarchically porous BEA zeolite via pseudomorphic crystallization [J].
Choi, Minkee ;
Na, Kyungsu ;
Ryoo, Ryong .
CHEMICAL COMMUNICATIONS, 2009, (20) :2845-2847
[7]   Lewis acids:: From conventional homogeneous to green homogeneous and heterogeneous catalysis [J].
Corma, A ;
García, H .
CHEMICAL REVIEWS, 2003, 103 (11) :4307-4365
[8]   ZEOLITE-BETA AS A CATALYST FOR ALKYLATION OF ISOBUTANE WITH 2-BUTENE - INFLUENCE OF SYNTHESIS CONDITIONS AND PROCESS VARIABLES [J].
CORMA, A ;
GOMEZ, V ;
MARTINEZ, A .
APPLIED CATALYSIS A-GENERAL, 1994, 119 (01) :83-96
[9]   The hydrothermal synthesis of zeolites: Precursors, intermediates and reaction mechanism [J].
Cundy, CS ;
Cox, PA .
MICROPOROUS AND MESOPOROUS MATERIALS, 2005, 82 (1-2) :1-78
[10]   Mechanistic principles of nanoparticle evolution to zeolite crystals [J].
Davis, TM ;
Drews, TO ;
Ramanan, H ;
He, C ;
Dong, JS ;
Schnablegger, H ;
Katsoulakis, MA ;
Kokkoli, E ;
McCormick, AV ;
Penn, RL ;
Tsapatsis, M .
NATURE MATERIALS, 2006, 5 (05) :400-408
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