ICCAS OpenIR
0.3 angstrom Makes the Difference: Dramatic Changes in Methanol-to-Olefin Activities between H-ZSM-12 and H-ZSM-22 Zeolites
Wang, Qiong1,2; Cui, Zhi-Min3; Cao, Chang-Yan1; Song, Wei-Guo1
2011-12-22
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY C
ISSN1932-7447
Volume115Issue:50Pages:24987-24992
AbstractTwo one-dimensional zeolite catalysts with similar pore structures and 0.3 angstrom difference in pore sizes (5.6 angstrom x 6.0 angstrom for H-ZSM-12 and 4.6 angstrom x 5.7 angstrom for H-ZSM-22) were exploited to gauge the critical sizes of the key intermediate species formed during the methanol conversion to olefins. Both zeolite catalysts are characterized by powder X-ray diffraction, scanning electron microscopy, (27)Al solid-state NMR spectroscopy, NH(3) temperature-programmed desorption, and N(2) adsorption/desorption analysis. In the methanol-to-olefin (MTO) process, the hydrocarbon-pool mechanism worked on the H-ZSM-12 zeolite with the 6.0 angstrom pore size, while the catalytic cycle could not be completed inside the H-ZSM-22 zeolite with the smaller 5.7 angstrom pore size. This finding strongly confirms that the hydrocarbon-pool mechanism is a space-demanding process and suggests that the size of key reactive hydrocarbon-pool intermediates for the MTO process is between 5.7 and 6.0 angstrom. These results will provide a strong experimental base for both theoretical and experimental studies in the MTO process.
DOI10.1021/jp209182u
Indexed BySCI
Language英语
WOS IDWOS:000297947700068
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:63[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/73800
Collection中国科学院化学研究所
Corresponding AuthorSong, Wei-Guo
Affiliation1.Chinese Acad Sci, Inst Chem, Lab Mol Nanostruct & Nanotechnol, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
2.Lanzhou Univ, Coll Chem & Chem Engn, State Key Lab Appl Organ Chem, Lanzhou 730000, Gansu, Peoples R China
3.Beijing Univ Aeronaut & Astronaut, Sch Chem & Environm Engn, Beijing 100191, Peoples R China
Recommended Citation
GB/T 7714
Wang, Qiong,Cui, Zhi-Min,Cao, Chang-Yan,et al. 0.3 angstrom Makes the Difference: Dramatic Changes in Methanol-to-Olefin Activities between H-ZSM-12 and H-ZSM-22 Zeolites[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2011,115(50):24987-24992.
APA Wang, Qiong,Cui, Zhi-Min,Cao, Chang-Yan,&Song, Wei-Guo.(2011).0.3 angstrom Makes the Difference: Dramatic Changes in Methanol-to-Olefin Activities between H-ZSM-12 and H-ZSM-22 Zeolites.JOURNAL OF PHYSICAL CHEMISTRY C,115(50),24987-24992.
MLA Wang, Qiong,et al."0.3 angstrom Makes the Difference: Dramatic Changes in Methanol-to-Olefin Activities between H-ZSM-12 and H-ZSM-22 Zeolites".JOURNAL OF PHYSICAL CHEMISTRY C 115.50(2011):24987-24992.
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
[Wang, Qiong]'s Articles
[Cui, Zhi-Min]'s Articles
[Cao, Chang-Yan]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wang, Qiong]'s Articles
[Cui, Zhi-Min]'s Articles
[Cao, Chang-Yan]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wang, Qiong]'s Articles
[Cui, Zhi-Min]'s Articles
[Cao, Chang-Yan]'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.