Efficient Synthesis of Mesoporous Nano ZSM-5 Zeolite Crystals without a Mesoscale Template

Hierarchical zeolites attract people’s attention due to their enhanced mass transfer properties in catalytic reactions. The research over obtaining these zeolites in green and efficient methods is of great significance for the current post-treatments and templating strategies tend to be costly for h...
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Autor*in:	Changsheng Zhang [verfasserIn] Kai Fan [verfasserIn] Ge Ma [verfasserIn] Chi Lei [verfasserIn] Wei Xu [verfasserIn] Jie Jiang [verfasserIn] Bing Sun [verfasserIn] Hongxing Zhang [verfasserIn] Yunfeng Zhu [verfasserIn] Song Wen [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2021

Schlagwörter:	ZSM-5 zeolite efficient synthesis hierarchical nano crystals

Übergeordnetes Werk:	In: Crystals - MDPI AG, 2011, 11(2021), 10, p 1247
Übergeordnetes Werk:	volume:11 ; year:2021 ; number:10, p 1247

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.3390/cryst11101247

Katalog-ID:	DOAJ030621518

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language	English
source	In Crystals 11(2021), 10, p 1247 volume:11 year:2021 number:10, p 1247
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authorswithroles_txt_mv	Changsheng Zhang @@aut@@ Kai Fan @@aut@@ Ge Ma @@aut@@ Chi Lei @@aut@@ Wei Xu @@aut@@ Jie Jiang @@aut@@ Bing Sun @@aut@@ Hongxing Zhang @@aut@@ Yunfeng Zhu @@aut@@ Song Wen @@aut@@
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callnumber-first	Q - Science
author	Changsheng Zhang
spellingShingle	Changsheng Zhang misc QD901-999 misc ZSM-5 zeolite misc efficient synthesis misc hierarchical misc nano crystals misc Crystallography Efficient Synthesis of Mesoporous Nano ZSM-5 Zeolite Crystals without a Mesoscale Template
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topic_title	QD901-999 Efficient Synthesis of Mesoporous Nano ZSM-5 Zeolite Crystals without a Mesoscale Template ZSM-5 zeolite efficient synthesis hierarchical nano crystals
topic	misc QD901-999 misc ZSM-5 zeolite misc efficient synthesis misc hierarchical misc nano crystals misc Crystallography
topic_unstemmed	misc QD901-999 misc ZSM-5 zeolite misc efficient synthesis misc hierarchical misc nano crystals misc Crystallography
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title	Efficient Synthesis of Mesoporous Nano ZSM-5 Zeolite Crystals without a Mesoscale Template
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title_full	Efficient Synthesis of Mesoporous Nano ZSM-5 Zeolite Crystals without a Mesoscale Template
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author_browse	Changsheng Zhang Kai Fan Ge Ma Chi Lei Wei Xu Jie Jiang Bing Sun Hongxing Zhang Yunfeng Zhu Song Wen
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title_sort	efficient synthesis of mesoporous nano zsm-5 zeolite crystals without a mesoscale template
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title_auth	Efficient Synthesis of Mesoporous Nano ZSM-5 Zeolite Crystals without a Mesoscale Template
abstract	Hierarchical zeolites attract people’s attention due to their enhanced mass transfer properties in catalytic reactions. The research over obtaining these zeolites in green and efficient methods is of great significance for the current post-treatments and templating strategies tend to be costly for hierarchical zeolite synthesis. In this research, nanosized mesoporous ZSM-5 (SN-ZSM-5) zeolites have been synthesized without the addition of mesoscale templates under highly concentrated conditions. The physicochemical characteristics were systematically investigated by XRD, SEM, N2 sorption, TEM, and NMR. The SEM images showed ZSM-5 crystals with sizes between 50–110 nm were obtained. N<sub<2</sub< sorption and high-resolution TEM images gave direct evidence for the hierarchical structure of SN-ZSM-5. The forming mechanism for the hierarchical structure was proposed that the etching effect of the highly alkaline environment for the starting gels played a critical role in the formation of hierarchical structure. Catalytic tests in methanol-to-olefins (MTO) showed the SN-ZSM-5 performed a longer catalyst lifetime and higher propylene selectivity than the conventional ZSM-5 zeolites (C-ZSM-5) obtained from a traditional hydrothermal method. The features of hierarchical structure in the SN-ZSM-5 crystals and the sustainability for synthesis method could show a promising choice for wide applications of these SN-ZSM-5 zeolites in the future.
abstractGer	Hierarchical zeolites attract people’s attention due to their enhanced mass transfer properties in catalytic reactions. The research over obtaining these zeolites in green and efficient methods is of great significance for the current post-treatments and templating strategies tend to be costly for hierarchical zeolite synthesis. In this research, nanosized mesoporous ZSM-5 (SN-ZSM-5) zeolites have been synthesized without the addition of mesoscale templates under highly concentrated conditions. The physicochemical characteristics were systematically investigated by XRD, SEM, N2 sorption, TEM, and NMR. The SEM images showed ZSM-5 crystals with sizes between 50–110 nm were obtained. N<sub<2</sub< sorption and high-resolution TEM images gave direct evidence for the hierarchical structure of SN-ZSM-5. The forming mechanism for the hierarchical structure was proposed that the etching effect of the highly alkaline environment for the starting gels played a critical role in the formation of hierarchical structure. Catalytic tests in methanol-to-olefins (MTO) showed the SN-ZSM-5 performed a longer catalyst lifetime and higher propylene selectivity than the conventional ZSM-5 zeolites (C-ZSM-5) obtained from a traditional hydrothermal method. The features of hierarchical structure in the SN-ZSM-5 crystals and the sustainability for synthesis method could show a promising choice for wide applications of these SN-ZSM-5 zeolites in the future.
abstract_unstemmed	Hierarchical zeolites attract people’s attention due to their enhanced mass transfer properties in catalytic reactions. The research over obtaining these zeolites in green and efficient methods is of great significance for the current post-treatments and templating strategies tend to be costly for hierarchical zeolite synthesis. In this research, nanosized mesoporous ZSM-5 (SN-ZSM-5) zeolites have been synthesized without the addition of mesoscale templates under highly concentrated conditions. The physicochemical characteristics were systematically investigated by XRD, SEM, N2 sorption, TEM, and NMR. The SEM images showed ZSM-5 crystals with sizes between 50–110 nm were obtained. N<sub<2</sub< sorption and high-resolution TEM images gave direct evidence for the hierarchical structure of SN-ZSM-5. The forming mechanism for the hierarchical structure was proposed that the etching effect of the highly alkaline environment for the starting gels played a critical role in the formation of hierarchical structure. Catalytic tests in methanol-to-olefins (MTO) showed the SN-ZSM-5 performed a longer catalyst lifetime and higher propylene selectivity than the conventional ZSM-5 zeolites (C-ZSM-5) obtained from a traditional hydrothermal method. The features of hierarchical structure in the SN-ZSM-5 crystals and the sustainability for synthesis method could show a promising choice for wide applications of these SN-ZSM-5 zeolites in the future.
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title_short	Efficient Synthesis of Mesoporous Nano ZSM-5 Zeolite Crystals without a Mesoscale Template
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author2	Kai Fan Ge Ma Chi Lei Wei Xu Jie Jiang Bing Sun Hongxing Zhang Yunfeng Zhu Song Wen
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Efficient Synthesis of Mesoporous Nano ZSM-5 Zeolite Crystals without a Mesoscale Template

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