Development of hierarchical MCM-49 zeolite with intracrystalline mesopores and improved catalytic performance in liquid alkylation of benzene with ethylene

Gao, Ningning; Xie, Sujuan; Liu, Shenglin; Xin, Wenjie; Gao, Yang; Li, Xiujie; Wei, Huijuan; Liu, Hui; Xu, Longya

doi:10.1016/j.micromeso.2015.03.009

Cited by 24 publications

(14 citation statements)

References 24 publications

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“…Post-synthesis treatment to obtain intracrystalline mesopores in MCM-49 zeolite. TEM micrographs were taken from Reference[58]. Copyright (2015), with permission from Elsevier.…”

mentioning

confidence: 99%

Lamellar MWW-Type Zeolites: Toward Elegant Nanoporous Materials

Schwanke

Pergher

2018

Applied Sciences

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This article provides an overview of nanoporous materials with MWW (Mobil twenty two) topology. It covers aspects of the synthesis of the MWW precursor and the tridimensional zeolite MCM-22 (Mobil Composition of Matter number 22) as well as their physicochemical properties, such as the Si/Al molar ratio, acidity, and morphology. In addition, it discusses the use of directing agents (SDAs) to obtain the different MWW-type materials reported so far. The traditional post-synthesis modifications to obtain MWW-type materials with hierarchical architectures, such as expanded, swelling, pillaring, and delaminating structures, are shown together with recent routes to obtain materials with more open structures. New routes for the direct synthesis of MWW-type materials with hierarchical pore architecture are also covered.

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“…Post-synthesis treatment to obtain intracrystalline mesopores in MCM-49 zeolite. TEM micrographs were taken from Reference[58]. Copyright (2015), with permission from Elsevier.…”

mentioning

confidence: 99%

Lamellar MWW-Type Zeolites: Toward Elegant Nanoporous Materials

Schwanke

Pergher

2018

Applied Sciences

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“…Solid-state 29 Si and 27 Al magic-angle-spinning nuclear magnetic spectroscopies (MAS NMR) were performed using a Bruker Avance III 500 MHz spectrometer. Prior to 27 Al MAS NMR measurements, all the samples were fully hydrated with NH4NO3 saturated solution in a closed container.…”

Section: Characterization Methodsmentioning

confidence: 99%

“…Adjustment of the pH during treatment of a zeolite with CTAB under alkaline conditions clearly affects the physicochemical and textural properties of the final products [28][29][30]. Hierarchical zeolites with intracrystalline mesopores or zeolite/MCM-41 composites can be obtained by adjusting the pH of the mixture.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, characterization, and catalytic performance of hierarchical ZSM-11 zeolite synthesized via dual-template route

刘惠

张爽

谢素娟

et al. 2018

Chinese Journal of Catalysis

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“…Recently, it has been observed that changes in the morphologies and mesoporosities of the zeolite crystals strongly influence the activity and selectivity in alkylation reactions [53][54][55][56][57][58][59][60][61][62]. Wang et al [53] showed that the conversion of ethylene over MCM-22 zeolite nanoplates is higher than that over MCM-22 zeolite microspheres.…”

Section: Ethylbenzene Processes With Lower Consumption Of Energy and Materialsmentioning

confidence: 99%

“…Studies of benzene alkylation over mesoporous zeolites show that zeolites with abundant mesopores are more active than conventional zeolites [55][56][57][58][59][60][61]. Figure 6 shows a comparison of ethylene conversions using conventional MCM-22 and mesoporous MCM-22 prepared at various SiO2/Al2O3 molar ratios [58].…”

Section: Ethylbenzene Processes With Lower Consumption Of Energy and Materialsmentioning

confidence: 99%