2007
DOI: 10.1021/nn700230n
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Abstract: Double-walled carbon nanotubes (DWNTs) doped with nitrogen and boron have been prepared by the decomposition of a CH(4) + Ar mixture along with pyridine (or NH(3)) and diborane, respectively, over a Mo(0.1)Fe(0.9)Mg(13)O catalyst, prepared by the combustion route. The doped DWNTs bave been characterized by transmission electron microscopy (TEM), X-ray photoelectron spectroscopy, electron energy loss spectroscopy, and Raman spectroscopy. The dopant concentration is around 1 atom % for both boron and nitrogen. T… Show more

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Cited by 222 publications
(109 citation statements)
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References 33 publications
(70 reference statements)
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“…Bulk probing methods ͑XPS with different photon energies͒ have been used in N-doped C-DWNTs and mixtures of SW and DW material ͑Kim et al., 2005;Panchakarla et al, 2007;Elias et al, 2010͒. The sensitivity ͑resolution͒ to the different bonding environments has allowed identification of the different ways in which N incorporates according to the synthesis conditions.…”
Section: Bonding Environmentsmentioning
confidence: 99%
“…Bulk probing methods ͑XPS with different photon energies͒ have been used in N-doped C-DWNTs and mixtures of SW and DW material ͑Kim et al., 2005;Panchakarla et al, 2007;Elias et al, 2010͒. The sensitivity ͑resolution͒ to the different bonding environments has allowed identification of the different ways in which N incorporates according to the synthesis conditions.…”
Section: Bonding Environmentsmentioning
confidence: 99%
“…it is highly unlikely that B containing gaseous species have formed. Recently, Panchakarla et al [16] reported the presence of the B1s signal at 191.4 eV in double-walled carbon nanotubes. In this case, the presence of an asymmetric peak suggests at least three chemical states which have not been identified.…”
Section: Boron Content and Bonding Environmentmentioning
confidence: 99%
“…19 To solubilize DWNTs in nonpolar solvents, the following procedure was employed. In the first step, acid treated DWNTs were prepared by the following procedure.…”
Section: Covalent and Non-covalent Functionalization Of Dwntsmentioning
confidence: 99%