Aluminated hierarchical silicalite-2 particles: Catalyst with remarkably increased lifetime for methanol to hydrocarbons

Jian Ding; Jiangbo Hu; Yejun Guan; Haihong Wu; Ming yuan He

doi:10.1016/j.catcom.2016.08.023

Aluminated hierarchical silicalite-2 particles: Catalyst with remarkably increased lifetime for methanol to hydrocarbons

Jian Ding, Jiangbo Hu, Yejun Guan, Haihong Wu, Ming yuan He

School of Chemistry and Molecular Engineering

East China Normal University

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

Aluminated hierarchical silicalite-2 with both large particle size and high external surface area was prepared by aluminating silicalite-2 under the protection of TBA⁺ cations in a mild alkaline solution. The textural and acidic properties of thus formed material (Z11-meso) were characterized by SEM, TEM, XRD, N₂ adsorption, FTIR, NH₃-TPD, and ²⁷Al NMR spectroscopy. The resulting hierarchical Z11-meso contained mainly tetrahedral coordinated aluminum species with low Brønsted/Lewis ratio (B/L) while preserved the zeolitic structure. Owning to the high external surface area (S_ext), hierarchical porous structures and low B/L ratio, Z11-meso outperformed the microporous ZSM-11 counterparts in methanol to hydrocarbons in terms of both activity and stability.

Original language	English
Pages (from-to)	139-142
Number of pages	4
Journal	Catalysis Communications
Volume	86
DOIs	https://doi.org/10.1016/j.catcom.2016.08.023
State	Published - 5 Nov 2016

Keywords

alumination
hierarchical ZSM-11
mesoporosity
methanol conversion
silicalite-2

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10.1016/j.catcom.2016.08.023

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title = "Aluminated hierarchical silicalite-2 particles: Catalyst with remarkably increased lifetime for methanol to hydrocarbons",

abstract = "Aluminated hierarchical silicalite-2 with both large particle size and high external surface area was prepared by aluminating silicalite-2 under the protection of TBA+ cations in a mild alkaline solution. The textural and acidic properties of thus formed material (Z11-meso) were characterized by SEM, TEM, XRD, N2 adsorption, FTIR, NH3-TPD, and 27Al NMR spectroscopy. The resulting hierarchical Z11-meso contained mainly tetrahedral coordinated aluminum species with low Br{\o}nsted/Lewis ratio (B/L) while preserved the zeolitic structure. Owning to the high external surface area (Sext), hierarchical porous structures and low B/L ratio, Z11-meso outperformed the microporous ZSM-11 counterparts in methanol to hydrocarbons in terms of both activity and stability.",

keywords = "alumination, hierarchical ZSM-11, mesoporosity, methanol conversion, silicalite-2",

author = "Jian Ding and Jiangbo Hu and Yejun Guan and Haihong Wu and He, \{Ming yuan\}",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier B.V.",

year = "2016",

month = nov,

day = "5",

doi = "10.1016/j.catcom.2016.08.023",

language = "英语",

volume = "86",

pages = "139--142",

journal = "Catalysis Communications",

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TY - JOUR

T1 - Aluminated hierarchical silicalite-2 particles

T2 - Catalyst with remarkably increased lifetime for methanol to hydrocarbons

AU - Ding, Jian

AU - Hu, Jiangbo

AU - Guan, Yejun

AU - Wu, Haihong

AU - He, Ming yuan

PY - 2016/11/5

Y1 - 2016/11/5

N2 - Aluminated hierarchical silicalite-2 with both large particle size and high external surface area was prepared by aluminating silicalite-2 under the protection of TBA+ cations in a mild alkaline solution. The textural and acidic properties of thus formed material (Z11-meso) were characterized by SEM, TEM, XRD, N2 adsorption, FTIR, NH3-TPD, and 27Al NMR spectroscopy. The resulting hierarchical Z11-meso contained mainly tetrahedral coordinated aluminum species with low Brønsted/Lewis ratio (B/L) while preserved the zeolitic structure. Owning to the high external surface area (Sext), hierarchical porous structures and low B/L ratio, Z11-meso outperformed the microporous ZSM-11 counterparts in methanol to hydrocarbons in terms of both activity and stability.

AB - Aluminated hierarchical silicalite-2 with both large particle size and high external surface area was prepared by aluminating silicalite-2 under the protection of TBA+ cations in a mild alkaline solution. The textural and acidic properties of thus formed material (Z11-meso) were characterized by SEM, TEM, XRD, N2 adsorption, FTIR, NH3-TPD, and 27Al NMR spectroscopy. The resulting hierarchical Z11-meso contained mainly tetrahedral coordinated aluminum species with low Brønsted/Lewis ratio (B/L) while preserved the zeolitic structure. Owning to the high external surface area (Sext), hierarchical porous structures and low B/L ratio, Z11-meso outperformed the microporous ZSM-11 counterparts in methanol to hydrocarbons in terms of both activity and stability.

KW - alumination

KW - hierarchical ZSM-11

KW - mesoporosity

KW - methanol conversion

KW - silicalite-2

UR - https://www.scopus.com/pages/publications/84983591855

U2 - 10.1016/j.catcom.2016.08.023

DO - 10.1016/j.catcom.2016.08.023

M3 - 文章

AN - SCOPUS:84983591855

SN - 1566-7367

VL - 86

SP - 139

EP - 142

JO - Catalysis Communications

JF - Catalysis Communications

ER -

Aluminated hierarchical silicalite-2 particles: Catalyst with remarkably increased lifetime for methanol to hydrocarbons

Abstract

Keywords

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