DICP OpenIR
Towards guest-zeolite interactions: An NMR spectroscopic approach
Ma, D; Han, XW; Zhou, DH; Yan, ZM; Fu, RQ; Xu, Y; Bao, XH; Hu, HB; Au-Yeung, SCF
KeywordHost-guest Systems Mcm-22 Molybdenum Nmr Spectroscopy Zeolites
Source PublicationCHEMISTRY-A EUROPEAN JOURNAL
2002-10-04
Volume8Issue:19Pages:4557-4561
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Multidisciplinary
WOS Research AreaChemistry
WOS KeywordBRONSTED ACIDIC SITES ; ANGLE-SPINNING NMR ; STATE ION-EXCHANGE ; MAS-NMR ; MOLECULAR-SIEVES ; AB-INITIO ; MO/HZSM-5 CATALYSTS ; AL-27 ; METHANE ; ALUMINOPHOSPHATE
AbstractGuest(metal)-zeolite interactions in a two component heterogeneous catalyst have been investigated by high-field and high-speed Al-27 MAS NMR, and two-dimensional Al-27 MQ MAS NMR experiments as well as ab initio DFT methods. It was established that strong interactions between guest and zeolite occur in a metal/zeolite system, with the metal anchored to the tetrahedral aluminum framework site through two oxygen bridges. It disturbs the tetrahedral environment of associated aluminum framework, changing AlO4 geometry from near T-d to C-2v; this enables us to resolve this species from the undisturbed aluminum framework species in high-field Al-27, MAS NMR and two-dimesional Al-27 MQ MAS NMR experiments.
Language英语
WOS IDWOS:000178542000025
Citation statistics
Cited Times:25[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/139068
Collection中国科学院大连化学物理研究所
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Ctr Interdisciplinary Magnet Resonance, Natl High Magnet Field Lab, Tallahassee, FL 32310 USA
3.Chinese Univ Hong Kong, Dept Chem, Hong Kong, Hong Kong, Peoples R China
Recommended Citation
GB/T 7714
Ma, D,Han, XW,Zhou, DH,et al. Towards guest-zeolite interactions: An NMR spectroscopic approach[J]. CHEMISTRY-A EUROPEAN JOURNAL,2002,8(19):4557-4561.
APA Ma, D.,Han, XW.,Zhou, DH.,Yan, ZM.,Fu, RQ.,...&Au-Yeung, SCF.(2002).Towards guest-zeolite interactions: An NMR spectroscopic approach.CHEMISTRY-A EUROPEAN JOURNAL,8(19),4557-4561.
MLA Ma, D,et al."Towards guest-zeolite interactions: An NMR spectroscopic approach".CHEMISTRY-A EUROPEAN JOURNAL 8.19(2002):4557-4561.
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