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Fabrication of smallest single-walled carbon nanotubes in molecular sieves: A comparison between SAPO-11 and AlPO4-11
Zhai J.P.2; Li I.L.2; Ruan S.C.2; Tang Z.K.1
2009-08-01
Source PublicationMicroporous and Mesoporous Materials
ISSN13871811
Volume124Issue:1-3Pages:15-19
AbstractDecomposition mechanism of dipropylamine (DPA) molecules in the channels of AlPO-11 and Si-incorporated AlPO-11 (SAPO-11) zeolite crystals was investigated by mass spectrometry, with the aim to fabricate high-density 0.3-nm single-walled carbon nanotubes (SWNTs). In comparison with neutral AlPO-11, the organic template DPA is bonded to SAPO-11 framework by strong chemical interaction. As a result, a significant amount of hydrocarbon molecules are trapped in the channels during carbonization process. In addition, the SAPO-11 framework plays an important catalytic role in the pyrolysis and conversion of the organic molecules to SWNTs within the crystal channels, owing to the Bønsted acid sites. The resulting SWNTs have higher density than those fabricated without Si doping, evidenced by the clear and strong radial-breathing modes in Raman spectra. Crown Copyright © 2009.
KeywordAEL Carbon nanotube Mass spectrometry Raman spectroscopy Template decomposition
DOI10.1016/j.micromeso.2009.04.016
URLView the original
Language英語
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Cited Times [WOS]:11   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Affiliation1.Hong Kong University of Science and Technology
2.Shenzhen University
Recommended Citation
GB/T 7714
Zhai J.P.,Li I.L.,Ruan S.C.,et al. Fabrication of smallest single-walled carbon nanotubes in molecular sieves: A comparison between SAPO-11 and AlPO4-11[J]. Microporous and Mesoporous Materials,2009,124(1-3):15-19.
APA Zhai J.P.,Li I.L.,Ruan S.C.,&Tang Z.K..(2009).Fabrication of smallest single-walled carbon nanotubes in molecular sieves: A comparison between SAPO-11 and AlPO4-11.Microporous and Mesoporous Materials,124(1-3),15-19.
MLA Zhai J.P.,et al."Fabrication of smallest single-walled carbon nanotubes in molecular sieves: A comparison between SAPO-11 and AlPO4-11".Microporous and Mesoporous Materials 124.1-3(2009):15-19.
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