DICP OpenIR
Highly mesoporous SAPO-11 molecular sieves with tunable acidity: facile synthesis, formation mechanism and catalytic performance in hydroisomerization of n-dodecane
Tao, Shuo1,2; Li, Xiaolei1,2; Lv, Guang2; Wang, Congxin2; Xu, Renshun2; Ma, Huaijun2; Tian, Zhijian1,2
Source PublicationCATALYSIS SCIENCE & TECHNOLOGY
2017-12-07
ISSN2044-4753
DOI10.1039/c7cy01819c
Volume7Issue:23Pages:5775-5784
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Physical
WOS Research AreaChemistry
WOS KeywordSURFACTANT-DIRECTED SYNTHESIS ; HIERARCHICAL ZEOLITE-BETA ; MTO PERFORMANCE ; SI DISTRIBUTION ; VEGETABLE-OIL ; TEMPLATE ; ISOMERIZATION ; CONVERSION ; CRYSTALS ; ALKANES
AbstractThe pore architecture and acidity of zeolite materials play crucial roles in the activity and selectivity of catalytic reactions. Herein, hierarchical SAPO-11 molecular sieve microspheres with uniform intercrystalline mesoporosity (ca. 4.3 nm) and tunable acidity were synthesized via dry-gel conversion (DGC) of a silicoaluminophosphate-organosilane composite. The products were comprehensively characterized using multiple techniques, including XRD, SEM, TEM, N-2 adsorption-desorption, NH3-TPD, pyridine-adsorbed IR (Py-IR), TG and Si-29 MAS NMR measurements. It is revealed that the products' acidity can be precisely tuned in a wide range by simply adjusting the water content used in the synthesis. The growth of such hierarchical SAPO-11 underwent a rearrangement of the mesopores: the original mesopores (ca. 17 nm) of the precursor were collapsed at the initial stage of crystallization and the final mesopores of the products were directed by the organosilane. More importantly, the Pt/hierarchical SAPO-11 catalysts exhibited enhanced isomerization selectivity in the hydroisomerization of n-dodecane, attributed to their excellent diffusion properties resulting from the hierarchical pore network. This work demonstrates a facile approach to synthesize hierarchical zeolites with tunable acidity, which is beneficial for catalytic reactions involving bulky molecules.
Language英语
WOS IDWOS:000417706600034
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:16[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/168471
Collection中国科学院大连化学物理研究所
Corresponding AuthorLi, Xiaolei; Tian, Zhijian
Affiliation1.Liaocheng Univ, Shandong Prov Key Lab Chem Energy Storage & Novel, Sch Chem & Chem Engn, Liaocheng 252059, Shandong, Peoples R China
2.Chinese Acad Sci, Dalian Natl Lab Clean Energy, Dalian Inst Chem Phys, Dalian 116023, Liaoning, Peoples R China
Recommended Citation
GB/T 7714
Tao, Shuo,Li, Xiaolei,Lv, Guang,et al. Highly mesoporous SAPO-11 molecular sieves with tunable acidity: facile synthesis, formation mechanism and catalytic performance in hydroisomerization of n-dodecane[J]. CATALYSIS SCIENCE & TECHNOLOGY,2017,7(23):5775-5784.
APA Tao, Shuo.,Li, Xiaolei.,Lv, Guang.,Wang, Congxin.,Xu, Renshun.,...&Tian, Zhijian.(2017).Highly mesoporous SAPO-11 molecular sieves with tunable acidity: facile synthesis, formation mechanism and catalytic performance in hydroisomerization of n-dodecane.CATALYSIS SCIENCE & TECHNOLOGY,7(23),5775-5784.
MLA Tao, Shuo,et al."Highly mesoporous SAPO-11 molecular sieves with tunable acidity: facile synthesis, formation mechanism and catalytic performance in hydroisomerization of n-dodecane".CATALYSIS SCIENCE & TECHNOLOGY 7.23(2017):5775-5784.
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
[Tao, Shuo]'s Articles
[Li, Xiaolei]'s Articles
[Lv, Guang]'s Articles
Baidu academic
Similar articles in Baidu academic
[Tao, Shuo]'s Articles
[Li, Xiaolei]'s Articles
[Lv, Guang]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Tao, Shuo]'s Articles
[Li, Xiaolei]'s Articles
[Lv, Guang]'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.