Direct synthesis of self-assembled ZSM-5 microsphere with controllable mesoporosity and its enhanced LDPE cracking properties

Jian Ding; Jiangbo Hu; Teng Xue; Yimeng Wang; Haihong Wu; Peng Wu; Mingyuan He

doi:10.1039/c6ra03047e

Direct synthesis of self-assembled ZSM-5 microsphere with controllable mesoporosity and its enhanced LDPE cracking properties

Jian Ding
, Jiangbo Hu
, Teng Xue
, Yimeng Wang
, Haihong Wu^*
, Peng Wu
, Mingyuan He

^*Corresponding author for this work

School of Chemistry and Molecular Engineering

East China Normal University

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

28 Scopus citations

Abstract

Self-assembled mesoporous ZSM-5 microspheres (∼5 μm), which are composed of inter-growthed primary nano-strips, are directly synthesized using n-hexylamine as the single template. The mesopore distribution can be facilely controlled by adjusting the size of primary particles via modulating the alkalinity of the synthesis gel. The samples obtained by varying Na₂O/SiO₂ molar ratios from 0.07 to 0.15 are denoted as ZM-X (X = 1-5). The ZM-X samples are characterized by techniques including XRD, TEM, SEM, N₂ adsorption-desorption and FTIR. It is found that ZM-3 exhibits a uniform mesopore distribution around 10 nm and possesses the largest amount of external acid sites, which lead to the remarkably enhanced catalytic performance in polyolefin cracking. A possible growth mechanism of self-assembled ZSM-5 microspheres directed by n-hexylamine is proposed.

Original language	English
Pages (from-to)	38671-38679
Number of pages	9
Journal	RSC Advances
Volume	6
Issue number	45
DOIs	https://doi.org/10.1039/c6ra03047e
State	Published - 2016

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@article{28f70b6fae9044c8aca65edec51559be,

title = "Direct synthesis of self-assembled ZSM-5 microsphere with controllable mesoporosity and its enhanced LDPE cracking properties",

abstract = "Self-assembled mesoporous ZSM-5 microspheres (∼5 μm), which are composed of inter-growthed primary nano-strips, are directly synthesized using n-hexylamine as the single template. The mesopore distribution can be facilely controlled by adjusting the size of primary particles via modulating the alkalinity of the synthesis gel. The samples obtained by varying Na2O/SiO2 molar ratios from 0.07 to 0.15 are denoted as ZM-X (X = 1-5). The ZM-X samples are characterized by techniques including XRD, TEM, SEM, N2 adsorption-desorption and FTIR. It is found that ZM-3 exhibits a uniform mesopore distribution around 10 nm and possesses the largest amount of external acid sites, which lead to the remarkably enhanced catalytic performance in polyolefin cracking. A possible growth mechanism of self-assembled ZSM-5 microspheres directed by n-hexylamine is proposed.",

author = "Jian Ding and Jiangbo Hu and Teng Xue and Yimeng Wang and Haihong Wu and Peng Wu and Mingyuan He",

note = "Publisher Copyright: {\textcopyright} The Royal Society of Chemistry 2016.",

year = "2016",

doi = "10.1039/c6ra03047e",

language = "英语",

volume = "6",

pages = "38671--38679",

journal = "RSC Advances",

issn = "2046-2069",

publisher = "Royal Society of Chemistry",

number = "45",

}

TY - JOUR

T1 - Direct synthesis of self-assembled ZSM-5 microsphere with controllable mesoporosity and its enhanced LDPE cracking properties

AU - Ding, Jian

AU - Hu, Jiangbo

AU - Xue, Teng

AU - Wang, Yimeng

AU - Wu, Haihong

AU - Wu, Peng

AU - He, Mingyuan

PY - 2016

Y1 - 2016

N2 - Self-assembled mesoporous ZSM-5 microspheres (∼5 μm), which are composed of inter-growthed primary nano-strips, are directly synthesized using n-hexylamine as the single template. The mesopore distribution can be facilely controlled by adjusting the size of primary particles via modulating the alkalinity of the synthesis gel. The samples obtained by varying Na2O/SiO2 molar ratios from 0.07 to 0.15 are denoted as ZM-X (X = 1-5). The ZM-X samples are characterized by techniques including XRD, TEM, SEM, N2 adsorption-desorption and FTIR. It is found that ZM-3 exhibits a uniform mesopore distribution around 10 nm and possesses the largest amount of external acid sites, which lead to the remarkably enhanced catalytic performance in polyolefin cracking. A possible growth mechanism of self-assembled ZSM-5 microspheres directed by n-hexylamine is proposed.

AB - Self-assembled mesoporous ZSM-5 microspheres (∼5 μm), which are composed of inter-growthed primary nano-strips, are directly synthesized using n-hexylamine as the single template. The mesopore distribution can be facilely controlled by adjusting the size of primary particles via modulating the alkalinity of the synthesis gel. The samples obtained by varying Na2O/SiO2 molar ratios from 0.07 to 0.15 are denoted as ZM-X (X = 1-5). The ZM-X samples are characterized by techniques including XRD, TEM, SEM, N2 adsorption-desorption and FTIR. It is found that ZM-3 exhibits a uniform mesopore distribution around 10 nm and possesses the largest amount of external acid sites, which lead to the remarkably enhanced catalytic performance in polyolefin cracking. A possible growth mechanism of self-assembled ZSM-5 microspheres directed by n-hexylamine is proposed.

UR - https://www.scopus.com/pages/publications/84969263639

U2 - 10.1039/c6ra03047e

DO - 10.1039/c6ra03047e

M3 - 文章

AN - SCOPUS:84969263639

SN - 2046-2069

VL - 6

SP - 38671

EP - 38679

JO - RSC Advances

JF - RSC Advances

IS - 45

ER -

Direct synthesis of self-assembled ZSM-5 microsphere with controllable mesoporosity and its enhanced LDPE cracking properties

Abstract

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