Synthesis and characterization of organic-functionalized molecular sieves Ph-SAPO-5 and Ph-SAPO-11

Zhou, Dan; Luo, Xin; Zhang, Hailu; Dong, Chaojie; Xia, Qinghua; Liu, Z.-M.; Deng, Feng

doi:10.1016/j.micromeso.2009.01.033

Cited by 21 publications

(23 citation statements)

References 35 publications

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“…36 The Si-C hydrolysis was reported to occur during the preparation of hybrid phenylene-bridged materials, when the sol-gel reaction was performed under hydrothermal conditions in basic media, i. e., a methodology similar to the one followed in the present study. 53,54,55 On the other hand, the preparation of layered hybrid materials, LHM-TEMS, by combination of organosilane and monosilane precursors resulted in hybrid materials containing standard tetrahedral silicon units Si(nAl) in their framework from TEOS. One additional chemical shift around -85 ppm, together with T-type silicon species due to the presence of silyl-ethylendiamino and silyl-methyl groups from BTMN and TEMS precursors can be observed ( Figure 6 and Table 2 (Table 2).…”

Section: Spectroscopic Characterizationmentioning

confidence: 99%

One-pot synthesis of hierarchical porous layered hybrid materials based on aluminosilicate sheets and organic functional pillars

et al. 2014

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Layered hybrid materials (LHMs) based on ordered silicoaluminate sheets linked with organic fragments, perpendicularly located and stabilized in the interlayer space, were synthesized by one-pot direct hydrothermal process, in absence of structural directing agents (SDAs), and using bridged silsesquioxanes as organosilicon precursors. By following the synthesis described here, the preliminary preparation of inorganic layered precursors, post-synthesis swelling and/or pillaring treatments can be avoided. The physico-chemical and structural characteristics of the materials were studied by chemical and thermogravimetrical analyses, X-ray diffraction, TEM microscopy, spectroscopic techniques (NMR and FTIR) and textural measurements. The complete exchange of intracrystalline sodium cations by protons, without substantial structural alteration of hybrid materials, facilitated the generation of hybrid materials, which contained acid and base sites located in the inorganic (silicoaluminate layers) and in the organic interlayer linkers, respectively, being the resultant acid-base materials active and selective catalysts.

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Section: Spectroscopic Characterizationmentioning

confidence: 99%

One-pot synthesis of hierarchical porous layered hybrid materials based on aluminosilicate sheets and organic functional pillars

et al. 2014

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“…The hydrophobicity and acidity of those hybrid molecular sieves were modified by controlling the amount and type of organic groups attached. Zhoe et al also described the organic modification of large pore alumiophosphates AFI and AEL, by introducing 1,4-bis(triethoxysilyl)benzene in the synthesis media [91].…”

Section: Direct Synthesis Of Hybrid Organic-inorganic Zeolitesmentioning

confidence: 99%

Direct Synthesis of Functional Zeolitic Materials

Moliner

2012

ISRN Materials Science

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Recently, the direct synthesis of zeolitic materials has received much attention because several well-defined functionalities have been introduced in those materials by "one-pot" methodologies. The rationalization of the physics and chemistry of the processes involved in the zeolite growth has allowed the direct preparation of different functional molecular sieves with unique properties and potential applicability in industry. In the present paper, the "one-pot" preparations of metal-containing zeolites (both in framework and extra-framework positions), hybrid organic-inorganic molecular sieves, hierarchical microporous mesoporous zeotypes, nanosheets, nanozeolites, or template-free molecular sieves are intensively evaluated.

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“…[4][5][6][7][8][9][10][11][12][13][14][15][16][17][18] Based on the different connection states of organic groups with inorganic frameworks of molecular sieves, organic-inorganic hybrid microporous molecular sieves are classified as organic-functionalized molecular sieves and molecular sieves containing organic frameworks (shown in Scheme 1). [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18] Based on the different connection states of organic groups with inorganic frameworks of molecular sieves, organic-inorganic hybrid microporous molecular sieves are classified as organic-functionalized molecular sieves and molecular sieves containing organic frameworks (shown in Scheme 1).…”

Section: Introductionmentioning

confidence: 99%

“…[5][6][7][8] Up to now, various pendant functional groups have been reported, including Si-(CH 2 ) 2 -C 6 H 5 , 5,7 Si-(CH 2 ) 2 -C 6 H 9 , 7 Si-(CH 2 ) 2 -CHvCH 2 , 7 Si-(CH 2 ) 3 -SH, 7 Si-(CH 2 ) 3 -NH 2 , 8 Si-C 6 H 5 , 16 Si-CHvCH 2 , 17 P-CH 3 , 4 and P-C 6 H 5 . In 1998, Davis et al firstly reported the synthesis of a beta zeolite func-tionalized with a phenethyl group, which was then sulfonated and used in the acid-catalyzed condensation of cyclohexanone and glycol.…”

Section: Introductionmentioning

confidence: 99%

One-step DGC assembly and structural characterization of a hairy particle zeolite-like organic–inorganic hybrid as an efficient modifiable catalytic material

Zhou

Deng

et al. 2015

Dalton Trans.

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Organic-inorganic hybrid microporous crystalline molecular sieves, extending the application of conventional zeolites in the fields of selective catalysis and adsorption, have aroused great interest in chemists. However, the complicated and difficult synthesis of organic-inorganic hybrid microporous molecular sieves by using a conventional hydrothermal method has hindered the rapid development of this field. The present work describes the recent progress in the synthesis of a hairy particle zeolite-like organic-inorganic hybrid with the high organic group content by one-step dry-gel conversion (DGC) assembly of organic Si, inorganic Si and other inorganic species without any organic template, which is proven to be efficient, economical, simple, and controllable. Thus-synthesized hybrid materials, as we know, with the highest organic group content reported in the literature, can be bestowed with modifiable catalytic activities by different treatments. This study will be applicable for the development of organic-inorganic hybrid catalytic materials.

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Synthesis and characterization of organic-functionalized molecular sieves Ph-SAPO-5 and Ph-SAPO-11

Cited by 21 publications

References 35 publications

One-pot synthesis of hierarchical porous layered hybrid materials based on aluminosilicate sheets and organic functional pillars

One-pot synthesis of hierarchical porous layered hybrid materials based on aluminosilicate sheets and organic functional pillars

Direct Synthesis of Functional Zeolitic Materials

One-step DGC assembly and structural characterization of a hairy particle zeolite-like organic–inorganic hybrid as an efficient modifiable catalytic material

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