Template variation in the synthesis of zeolite ZSM-5

Gaag, F.J. van der; Jansen, J.C.; Bekkum, H. van

doi:10.1016/s0166-9834(00)83209-1

Cited by 46 publications

(9 citation statements)

References 13 publications

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“…María et al [24] also claimed that ZSM-5 cannot crystallize in the presence of ethanol at high SiO 2 /Al 2 O 3 ratios, showing a less templating effect of ethanol compared to TPA + cations. In the view of charge, organic amines are better templates than ethanol because they easily form H-bond complexes with the Si-OH terminal groups of the silicate anion [25].…”

Section: Physicochemical Propertymentioning

confidence: 99%

Difference of ZSM-5 zeolites synthesized with various templates

et al. 2004

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Section: Physicochemical Propertymentioning

confidence: 99%

Difference of ZSM-5 zeolites synthesized with various templates

et al. 2004

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“…Recent investigations show that the quaternary ammonium compounds are not necessary for forming the crystal structure of this zeolite [2]. It may be obtained in the presence of aliphatic amines, diamines, alkanol amines, glycerol, aliphatic alcohols and ammonia, dodecylbenzenesulfonate, and a vast number of other substances [10].…”

Section: Introductionmentioning

confidence: 99%

Investigation of tertiary butyl alcohol as template for the synthesis of ZSM-5 zeolite

Aziz

Kim

2015

J Porous Mater

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The synthesis of ZSM-5 zeolite in the presence of tertiary butyl alcohol (TBA) in aqueous medium was investigated. It was found that well crystallized zeolite of the ZSM-5 type was formed from the sol of silica and sodium aluminate in the presence of an aqueous solution of tertiary butyl alcohol at the temperature of 180°C in the course of 2 days hydrothermal reaction followed by 1 day aging time, with molar ratios of 1.5 TBA: 50.3 SiO 2 : 1.0 Al 2 O 3 : 6.2 Na 2 O and 1248 H 2 O. The proposed procedure yields pure ZSM-5 zeolites with high surface area and crystallinity confirmed by X-ray diffraction pattern, FTIR spectrum and SEM observations. The acidity strength was measured by NH 3 -TPD analysis and application to the abatement of phenol in the water was also studied. The results proved TBA as an excellent and novel structure directing agent for the preparation of ZSM-5 zeolites.

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“…Magadiite with isomorphous substitution of aluminum may be used to prepare pentasil zeolites (BorbEly et al, 1997) as well as ferrierite (Borbtly et aL, 1998). Interestingly, it is obtained as a by-product in the synthesis of high-silica zeolites (Araya and Lowe, 1985;Van der Gaag et al, 1985). The interlayer galleries in magadiite can also be modified by organosilylation, which creates organically-modified surfaces.…”

Section: Introductionmentioning

confidence: 99%

One-Step Synthesis of Alkyltrimethylammonium-Intercalated Magadiite

Pastore

Munsignatti

Mascarenhas

2000

Clays and clay miner.

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Abstraet--Cetyltrimethylammonium-and tetradecyltrimethylammonium-intercalated magadiites were prepared by direct syntheses, starting from sodium metasilieate (NaaO/SiO2 = 1.0) and nitric acid. Total substitution of sodium by cetyltrimethylammonium or tetradecyltrimetbylammoniurn cations was not achieved in the range of surfactant : silicon molar ratios used in this study. When a phosphoniun-based surfactant replaces the ammonium surfactants in the same procedure, the result of the synthesis is a mixture of quartz and unmodified surfactant. If dodecylammonium bromide is used, an MCM-41 molecular sieve is obtained. The substitution of the silicon source by tetramethylammonium silicate or of nitric acid by hydrochloric, hydrofluoric, or acetic acids also yields MCM-41 molecular sieves, indicating that the formation of magadiite is greatly dependent on the presence of sodium cations and nitrate anions.

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Template variation in the synthesis of zeolite ZSM-5

Cited by 46 publications

References 13 publications

Difference of ZSM-5 zeolites synthesized with various templates

Difference of ZSM-5 zeolites synthesized with various templates

Investigation of tertiary butyl alcohol as template for the synthesis of ZSM-5 zeolite

One-Step Synthesis of Alkyltrimethylammonium-Intercalated Magadiite

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