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Scanning the laser beam for ultrafast pulse laser cleaning of paint |
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| Authors: | A. V. Rode D. Freeman K. G. H. Baldwin A. Wain O. Uteza Ph. Delaporte |
| Affiliation: | (1) Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Third south street No.8, Zhongguancun, Beijing, 100080, P.R. China;(2) Key Laboratory on the Physics and Chemistry of Nanodevices and Department of Electronics, Peking University, Yiheyuan Road No. 5, Beijing, 100871, P.R. China |
| Abstract: | Aligned arrays of N2-encapsulated multilevel branched carbon nanotubes were synthesized using a simple one step CVD method by pyrolysis of ferrocene and acetonitrile. Electron energy loss spectroscopy (EELS) and elemental mapping studies reveal that gaseous nitrogen was encapsulated in the carbon nanotubes. Batch-type pyrolysis of catalysts induced flow fluctuation of the reaction gases, resulting in the growth of branched junctions. Molecular nitrogen extruded rapidly along conical catalyst particles inducing N2 encapsulation inside the branched nanotubes. PACS 07.78.+s; 61.46.+w; 81.07.De; 81.15.Gh |
| Keywords: | KeywordHeading" >PACS 79.20.Ds 52.38.Mf |
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