title: Spectroscopic study of nitrogen doping of multi-walled carbon nanotubes.
abstract: Combined spatially resolved electron-energy loss spectroscopy (EELS) and high resolution near-edge X-ray absorption fine structure (NEXAFS) spectroscopy have been used to investigate the nitrogen doping of multi-walled carbon nanotubes (N-MWNT). EELS indicates that most of the tubes are nitrogen-doped. NEXAFS spectroscopy reveals pyridine-like and nitrile N structures. High resolution NEXAFS experiments show that the main nitrogen concentration originates from a high amount of molecular N2 encapsulated into only a small quantity of tubes.
authors.affiliation: Laboratoire des Colloïdes Verres et Nanomatériaux, Université Montpellier II, cc026, Place Eugène Bataillon, 34095 Montpellier, France.
authors.forename: S
authors.initials: S
authors.lastname: Enouz
authors.forename: J L
authors.initials: JL
authors.lastname: Bantignies
authors.forename: M R
authors.initials: MR
authors.lastname: Babaa
authors.forename: L
authors.initials: L
authors.lastname: Alvarez
authors.forename: P
authors.initials: P
authors.lastname: Parent
authors.forename: F
authors.initials: F
authors.lastname: Le Normand
authors.forename: O
authors.initials: O
authors.lastname: Stéphan
authors.forename: P
authors.initials: P
authors.lastname: Poncharal
authors.forename: A
authors.initials: A
authors.lastname: Loiseau
authors.forename: B P
authors.initials: BP
authors.lastname: Doyle
mesh_terms: D003460:Crystallization / Q000379:methods*; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D008968:Molecular Conformation; D036103:Nanotechnology / Q000379:methods*; D037742:Nanotubes, Carbon / Q000737:chemistry* / Q000648:ultrastructure*; D009584:Nitrogen / Q000737:chemistry*; D010316:Particle Size; D013057:Spectrum Analysis / Q000379:methods*; D013499:Surface Properties
chemical_list: D046911:Macromolecular Substances; D037742:Nanotubes, Carbon; D009584:Nitrogen