Analysis of Charge Transfer for in Situ Li Intercalated Carbon Nanotubes

Handle URI:
http://hdl.handle.net/10754/597554
Title:
Analysis of Charge Transfer for in Situ Li Intercalated Carbon Nanotubes
Authors:
Rana, Kuldeep; Kucukayan-Dogu, Gokce; Sen, H. Sener; Boothroyd, Chris; Gulseren, Oguz; Bengu, Erman
Abstract:
Vertically aligned carbon nanotube (VA-CNT) arrays have been synthesized with lithium (Li) intercalation through an alcohol-catalyzed chemical vapor deposition technique by using a Li-containing catalyst. Scanning electron microscopy images display that synthesized carbon nanotubes (CNTs) are dense and vertically aligned. The effect of the Li-containing catalyst on VA-CNTs has been studied by using Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), and electron energy loss spectroscopy (EELS). XPS results show the change in binding energy of Li 1s and C 1s peaks, which indicates that Li is inserted in VA-CNTs during growth. Analysis of Raman spectra reveals that the G-band profile of CNTs synthesized with the Li-containing catalyst is shifted, suggesting an electronic interaction between Li and neighboring C atoms of the CNTs. The EELS spectra of the C K edge and Li K edge from CNTs also confirmed that Li is inserted into CNTs during synthesis. We have performed ab inito calculations based on density functional theory for a further understanding of the structural and electronic properties of Li intercalated CNTs, especially addressing the controversial charge-transfer state between Li and C. © 2012 American Chemical Society.
Citation:
Rana K, Kucukayan-Dogu G, Sen HS, Boothroyd C, Gulseren O, et al. (2012) Analysis of Charge Transfer for in Situ Li Intercalated Carbon Nanotubes. The Journal of Physical Chemistry C 116: 11364–11369. Available: http://dx.doi.org/10.1021/jp301369u.
Publisher:
American Chemical Society (ACS)
Journal:
The Journal of Physical Chemistry C
Issue Date:
24-May-2012
DOI:
10.1021/jp301369u
Type:
Article
ISSN:
1932-7447; 1932-7455
Sponsors:
We thank Dr. Li Kun at KAUST for the use of TEM facilities and the Scientific and Technological Research Council of Turkey (Tubitak) for financial support.
Appears in Collections:
Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorRana, Kuldeepen
dc.contributor.authorKucukayan-Dogu, Gokceen
dc.contributor.authorSen, H. Seneren
dc.contributor.authorBoothroyd, Chrisen
dc.contributor.authorGulseren, Oguzen
dc.contributor.authorBengu, Ermanen
dc.date.accessioned2016-02-25T12:41:57Zen
dc.date.available2016-02-25T12:41:57Zen
dc.date.issued2012-05-24en
dc.identifier.citationRana K, Kucukayan-Dogu G, Sen HS, Boothroyd C, Gulseren O, et al. (2012) Analysis of Charge Transfer for in Situ Li Intercalated Carbon Nanotubes. The Journal of Physical Chemistry C 116: 11364–11369. Available: http://dx.doi.org/10.1021/jp301369u.en
dc.identifier.issn1932-7447en
dc.identifier.issn1932-7455en
dc.identifier.doi10.1021/jp301369uen
dc.identifier.urihttp://hdl.handle.net/10754/597554en
dc.description.abstractVertically aligned carbon nanotube (VA-CNT) arrays have been synthesized with lithium (Li) intercalation through an alcohol-catalyzed chemical vapor deposition technique by using a Li-containing catalyst. Scanning electron microscopy images display that synthesized carbon nanotubes (CNTs) are dense and vertically aligned. The effect of the Li-containing catalyst on VA-CNTs has been studied by using Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), and electron energy loss spectroscopy (EELS). XPS results show the change in binding energy of Li 1s and C 1s peaks, which indicates that Li is inserted in VA-CNTs during growth. Analysis of Raman spectra reveals that the G-band profile of CNTs synthesized with the Li-containing catalyst is shifted, suggesting an electronic interaction between Li and neighboring C atoms of the CNTs. The EELS spectra of the C K edge and Li K edge from CNTs also confirmed that Li is inserted into CNTs during synthesis. We have performed ab inito calculations based on density functional theory for a further understanding of the structural and electronic properties of Li intercalated CNTs, especially addressing the controversial charge-transfer state between Li and C. © 2012 American Chemical Society.en
dc.description.sponsorshipWe thank Dr. Li Kun at KAUST for the use of TEM facilities and the Scientific and Technological Research Council of Turkey (Tubitak) for financial support.en
dc.publisherAmerican Chemical Society (ACS)en
dc.titleAnalysis of Charge Transfer for in Situ Li Intercalated Carbon Nanotubesen
dc.typeArticleen
dc.identifier.journalThe Journal of Physical Chemistry Cen
dc.contributor.institutionBilkent Universitesi, Ankara, Turkeyen
dc.contributor.institutionForschungszentrum Jülich (FZJ), Julich, Germanyen
All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.