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DC Field | Value | Language |
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dc.contributor.author | Belesi, M. | en |
dc.contributor.author | Panagiotopoulos, I. | en |
dc.contributor.author | Pal, S. | en |
dc.contributor.author | Hariharan, S. | en |
dc.contributor.author | Tsitrouli, D. | en |
dc.contributor.author | Papavassiliou, G. | en |
dc.contributor.author | Niarchos, D. | en |
dc.contributor.author | Boukos, N. | en |
dc.contributor.author | Fardis, M. | en |
dc.contributor.author | Tzitzios, V. | en |
dc.date.accessioned | 2015-11-24T17:33:04Z | - |
dc.date.available | 2015-11-24T17:33:04Z | - |
dc.identifier.issn | 1687-4110 | - |
dc.identifier.uri | https://olympias.lib.uoi.gr/jspui/handle/123456789/13813 | - |
dc.rights | Default Licence | - |
dc.subject | anomalous magnetic-properties | en |
dc.subject | ferromagnetic metals | en |
dc.subject | nuclear resonance | en |
dc.subject | cobalt | en |
dc.subject | relaxation | en |
dc.subject | layers | en |
dc.subject | nickel | en |
dc.subject | route | en |
dc.subject | co-59 | en |
dc.subject | tubes | en |
dc.title | Decoration of Carbon Nanotubes with CoO and Co Nanoparticles | en |
heal.type | journalArticle | - |
heal.type.en | Journal article | en |
heal.type.el | Άρθρο Περιοδικού | el |
heal.identifier.primary | Doi 10.1155/2011/320516 | - |
heal.identifier.secondary | <Go to ISI>://000298341900001 | - |
heal.language | en | - |
heal.access | campus | - |
heal.recordProvider | Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Μηχανικών Επιστήμης Υλικών | el |
heal.publicationDate | 2011 | - |
heal.abstract | Multiwall carbon nanotubes (MWNTs) decorated with CoO nanocrystals were synthesized by in-situ thermal decomposition of Co(acac)(2) in oleyl amine under reflux conditions open in the air. The CoO/MWNTs composite material can be easily converted to metallic Co/MWNTs through annealing under reducing atmosphere (4% H(2)) at 500 degrees C without any significant sintering effect. The composite materials characterized by X-ray diffraction, transmission electron microscopy, and Nuclear Magnetic Resonance (NMR) spectroscopy. The structural and morphological characterization shows that the CoO has cubic face (fcc) and the particles deposited uniformly on the external surface of the carbon nanotubes. In the annealed materials, the NMR shows that the fcc and hcp metallic Co phases coexist with a significant percentage of stacking faults. The magnetic measurements indicated that the CoO/MWNTs composite is largely composed of CoO nanoparticles with uncompensated surface spins. The fluctuations of spins persist in partially reduced CoO grains as shown by nuclear spin-lattice relaxation measurements. | en |
heal.publisher | Hindawi Publishing | en |
heal.journalName | Journal of Nanomaterials | en |
heal.journalType | peer reviewed | - |
heal.fullTextAvailability | TRUE | - |
Appears in Collections: | Άρθρα σε επιστημονικά περιοδικά ( Ανοικτά) |
Files in This Item:
File | Description | Size | Format | |
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Panagiotopoulos-2011-Decoration of carbon nanotubes.pdf | 5.38 MB | Adobe PDF | View/Open Request a copy |
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