SIC OpenIR
Mesoporogen-Free Synthesis of High-Silica Hierarchically Structured ZSM-5 Zeolites and their Superior Performance for the Methanol-to-Propylene Reaction
Guo, Hangle; Ge, Tongguang; Lv, Jian; Du, Changlin; Zhou, Jian; Liu, Zhicheng; Hua, Zile
2019-01-10
Source PublicationEUROPEAN JOURNAL OF INORGANIC CHEMISTRY
ISSN1434-1948
Issue1Pages:51
SubtypeArticle
AbstractA series of hierarchically structured ZSM-5 zeolites (ZSM-5 HSZs) with a Si/Al ratio of about 200 have been successfully synthesized in the absence of additional mesoporous agents. XRD, N-2 sorption isotherms, SEM, TEM and NH3-TPD results showed that the obtained HSZs materials possess high crystallinity, interconnected micro/mesoporous structures and similar total acid amounts. Meanwhile, in the methanol-to-propylene (MTP) reaction, compared to the microporous counterpart, all synthesized ZSM-5 HSZs demonstrated superior performance benefitting from their hierarchical porous structures. Interestingly, Al-27 MAS NMR and Py-FTIR results confirmed the inter-transformation of framework and extra-framework Al species with the extension of materials crystallization duration and consequently the variation of materials surface acidity. As a result, the optimized catalyst achieved the highest initial propylene selectivity of 54.4 % and the longest catalyst lifetime (t(90)) of 175 h under the weight hourly space velocity (WHSV) of 1.0 g g(-1) h(-1). Moreover, a new "in situ alkali etching-hydrothermal restoring" mechanism has been proposed to elucidate the structural evolution of here reported high-silica ZSM-5 HSZs during the synthesis.
KeywordZeolites Mesoporous materials Microporous materials Acidity Propylene selectivity
DOI10.1002/ejic.201800926
Language英语
WOS Research AreaChemistry
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27400
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Guo, Hangle,Ge, Tongguang,Lv, Jian,et al. Mesoporogen-Free Synthesis of High-Silica Hierarchically Structured ZSM-5 Zeolites and their Superior Performance for the Methanol-to-Propylene Reaction[J]. EUROPEAN JOURNAL OF INORGANIC CHEMISTRY,2019(1):51.
APA Guo, Hangle.,Ge, Tongguang.,Lv, Jian.,Du, Changlin.,Zhou, Jian.,...&Hua, Zile.(2019).Mesoporogen-Free Synthesis of High-Silica Hierarchically Structured ZSM-5 Zeolites and their Superior Performance for the Methanol-to-Propylene Reaction.EUROPEAN JOURNAL OF INORGANIC CHEMISTRY(1),51.
MLA Guo, Hangle,et al."Mesoporogen-Free Synthesis of High-Silica Hierarchically Structured ZSM-5 Zeolites and their Superior Performance for the Methanol-to-Propylene Reaction".EUROPEAN JOURNAL OF INORGANIC CHEMISTRY .1(2019):51.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Guo, Hangle]'s Articles
[Ge, Tongguang]'s Articles
[Lv, Jian]'s Articles
Baidu academic
Similar articles in Baidu academic
[Guo, Hangle]'s Articles
[Ge, Tongguang]'s Articles
[Lv, Jian]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Guo, Hangle]'s Articles
[Ge, Tongguang]'s Articles
[Lv, Jian]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.