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Role of 12-Ring Channels of Mordenite in DME Carbonylation Investigated by Solid-State NMR
He, Ting1; Liu, Xianchun1; Xu, Shutao2; Han, Xiuwen1; Pan, Xiulian1; Hou, Guangjin1,3; Bao, Xinhe1
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY C
2016-10-06
ISSN1932-7447
DOI10.1021/acs.jpcc.6b07958
Volume120Issue:39Pages:22526-22531
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science
WOS KeywordBRONSTED ACID SITES ; METHANOL CARBONYLATION ; DIMETHYL ETHER ; SELECTIVE CARBONYLATION ; ZEOLITE FERRIERITE ; LINEAR ALKANES ; XE-129 NMR ; CATALYSTS ; SPECIFICITY ; CONVERSION
AbstractIn this work, we have studied the role of the 12-ring channel of mordenite in DME carbonylation. Upon modification with pyridine, the catalytic lifetime of mordenite in DME carbonylation was prolonged dramatically although its activity decreased slightly and the induction period increased. H-1 MAS NMR and PFG-NMR results demonstrated that the acid quantity decreased after pyridine was adsorbed, and the self-diffusion coefficient of CH4 decreased with the increase in pyridine quantity in the 12-ring channel. Xe-129 NMR results reveal that Xe atoms are preferentially adsorbed in an 8-ring side pocket at low pressure; xenon can enter the 8-ring side pocket at high temperature through the 12-ring channels only. From these results, the function of the 12-ring with respect to the reaction rate is explored and a transfer path of reactants/products is proposed.
Language英语
WOS IDWOS:000384959100046
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/169875
Collection中国科学院大连化学物理研究所
Corresponding AuthorBao, Xinhe
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Natl Engn Lab Methanol Olefins, Dalian 116023, Peoples R China
3.Univ Delaware, Dept Chem & Biochem, Newark, DE 19716 USA
Recommended Citation
GB/T 7714
He, Ting,Liu, Xianchun,Xu, Shutao,et al. Role of 12-Ring Channels of Mordenite in DME Carbonylation Investigated by Solid-State NMR[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2016,120(39):22526-22531.
APA He, Ting.,Liu, Xianchun.,Xu, Shutao.,Han, Xiuwen.,Pan, Xiulian.,...&Bao, Xinhe.(2016).Role of 12-Ring Channels of Mordenite in DME Carbonylation Investigated by Solid-State NMR.JOURNAL OF PHYSICAL CHEMISTRY C,120(39),22526-22531.
MLA He, Ting,et al."Role of 12-Ring Channels of Mordenite in DME Carbonylation Investigated by Solid-State NMR".JOURNAL OF PHYSICAL CHEMISTRY C 120.39(2016):22526-22531.
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